--- title: Retell AI Reviews meta_title: 'Retell AI Reviews 2026: Details, Pricing, & Features | G2' meta_description: Filter 2640 reviews by the users' company size, role or industry to find out how Retell AI works for a business like yours. aggregate_rating: rating_value: 4.8 review_count: 2640 scale: '5' date_modified: '2026-07-17' parent_category: name: AI Agents url: https://www.g2.com/categories/ai-agents --- # Retell AI Reviews **Vendor:** Retell AI **Category:** [AI Agents For Business Operations](https://www.g2.com/categories/ai-agents-for-business-operations) **Average Rating:** 4.8/5.0 **Total Reviews:** 2,640 ## About Retell AI Retell AI is a powerful conversational AI platform designed to automate voice, SMS, and chat interactions with natural, humanlike performance. Built on top of your choice of large language models (LLMs), Retell allows teams to spin up real-time AI agents that handle calls, trigger messaging workflows, and integrate seamlessly into your existing systems—all without writing code. At its core, Retell delivers Voice Agent Automation that feels indistinguishable from speaking with a real person. Calls are handled by LLM-native agents that respond within 600 milliseconds, support multi-turn logic, and operate across 31+ languages with native-quality speech. You can build and manage your own agent flows using an intuitive drag-and-drop builder that supports IVR trees, dynamic transfers, real-time webhooks, and CRM integration. Whether you’re scheduling appointments, answering FAQs, or qualifying leads, these agents are fast, reliable, and production-ready. Beyond voice, Retell also enables SMS and chat automation. Agents can send contextual messages during or after phone calls, or operate as standalone text/chat bots. You can use Twilio numbers or bring your own for outbound campaigns, enabling flexible, multi-channel engagement. To ensure quality and insight, Retell offers built-in testing and QA tools. You can simulate conversations, A/B test call flows, and monitor live call data through detailed dashboards. Track CSAT, latency, sentiment, and conversation outcomes—all in one place. Voice agents can be deployed via Twilio, SIP, branded caller ID, or embedded using Retell’s web SDKs. Unlike legacy IVR or scripted systems, Retell is built from the ground up to be AI-native and fully customizable. Whether you’re in healthcare, logistics, fintech, or customer support, Retell’s platform lets you scale personalized conversations across channels—boosting customer satisfaction and reducing operational costs. ## Retell AI Pros & Cons **What users like:** - Users find the **ease of use** of Retell AI enhances their workflow with simple prompts and integration. (494 reviews) - Users appreciate the **ease of use and smooth functionality** of Retell AI, making it accessible for everyone. (144 reviews) - Users appreciate the **straightforward interface** of Retell AI, finding it quick and easy to learn and use. (142 reviews) - Users highlight the **ease of integrations** , appreciating how intuitively they can connect with third-party services. (119 reviews) - Users appreciate the **simple and clean UI** of Retell AI, making it easy for anyone to create voice agents. (112 reviews) - Users appreciate the **easy integrations** of Retell AI, which enhance automation and customization with third-party voice providers. (99 reviews) - Users find the **setup process incredibly easy** and user-friendly, enhancing the overall experience with Retell AI. (95 reviews) - Customizability (90 reviews) - Efficiency (82 reviews) - Easy Setup (75 reviews) **What users dislike:** - Users feel the need for **missing features** like diverse voices, native CRM integrations, and more SIP trunking options. (116 reviews) - Users feel Retell AI is **expensive** compared to alternatives, particularly feeling the cost for testing is excessive. (87 reviews) - Users find the **steep learning curve** challenging, though support is available to ease the process. (80 reviews) - Users find the **limited features** of Retell AI hinder functionality, necessitating reliance on additional tools for testing. (66 reviews) - Users experience **poor understanding** of conversation types, leading to misaligned interactions and increased manual tuning efforts. (64 reviews) - Inaccuracy (58 reviews) - Users experience **integration issues** with Retell AI, particularly with third-party tools and SMS setups being complicated. (49 reviews) - Complexity (40 reviews) - Limited Language Support (40 reviews) - Users wish for more **customization options** , particularly to enhance the male voice features in Retell AI. (37 reviews) ## Retell AI Reviews ### 1. Needed a solution, retell has it. **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Program Development **Reviewed Date:** April 06, 2026 **What do you like best about Retell AI?** The voice quality is incredible — callers genuinely can't tell they're talking to an AI. Setup was fast, the knowledge base integration works well, and the webhook system lets us pipe call data straight into our app. For a one-man SaaS shop, having a 24/7 phone agent that handles both sales and support calls is a game changer. The dashboard makes it easy to tweak the agent's personality and monitor call quality. **What do you dislike about Retell AI?** SMS took me by surprise — I assumed it was already active on my number and just found out today it requires a separate A2P registration with a 2-week wait. Would be great if that was flagged during initial phone number setup. Also the pricing page could be clearer about what's included vs. what requires additional registration steps. **What problems is Retell AI solving and how is that benefiting you?** I'm a solo founder running a fleet management SaaS for small trucking companies. I can't be on the phone 24/7, but my customers expect to call a number and talk to someone. Retell lets me put a real phone number on my sales posters and website that actually answers, qualifies leads, answers product questions, and handles basic support — all while I'm dispatching trucks or writing code. Before Retell, missed calls were missed revenue. Now every call gets answered, and I get a webhook with the full transcript so I can follow up personally when it matters. ### 2. Excelent **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Telecommunications **Reviewed Date:** April 06, 2026 **What do you like best about Retell AI?** What I like most about Retell AI is how easy it is to build and deploy voice AI agents for real phone calls. The platform is very intuitive and allows quick integration with tools like Google Sheets and automation platforms, which makes it ideal for creating scalable outbound call solutions. The voice quality and real-time interaction are also very impressive. **What do you dislike about Retell AI?** One area for improvement is the learning curve when setting up more advanced workflows and integrations. Additionally, better documentation and more examples for complex use cases would be helpful. Occasionally, fine-tuning the conversation flow and handling edge cases can require extra effort. **What problems is Retell AI solving and how is that benefiting you?** Retell AI helps solve the problem of manual and repetitive outbound calling processes in contact centers. It automates customer interactions, reducing the need for human agents to handle routine calls. This benefits us by saving time, lowering operational costs, and increasing efficiency while ensuring consistent communication with customers. ### 3. RetellAi_perfect **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Architecture & Planning **Reviewed Date:** April 22, 2026 **What do you like best about Retell AI?** What I like most about Retell AI is the exceptionally low latency and the natural-sounding turn-taking. It handles interruptions smoothly, making the conversation feel much more human than other platforms. The API is well-documented and the integration with tools like n8n or Make.com is seamless, which allows for complex automation workflows **What do you dislike about Retell AI?** The ease of use and the quality of the pre-built voices are outstanding. I love how quickly I can go from a prompt to a functioning voice agent. The dashboard provides great observability into call logs, which helps a lot in refining the agent's behavior and performance over time. **What problems is Retell AI solving and how is that benefiting you?** I wish there were more advanced built-in tools for handling complex logic without always relying on external webhooks. Sometimes the customization of the 'back-and-forth' logic can feel a bit restricted when trying to implement very specific business rules or multi-step verification processes ### 4. This is the best platform I have ever used (after 25 years in the UCaaS, CCaaS, IVR space) **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services **Reviewed Date:** April 04, 2026 **What do you like best about Retell AI?** Fully featured voice platform without the bloat of years and years of legacy product development and bolt on feature through acquisition. I have used Twilio directly in the past and Retell add incalculable value that removes the need for hardcore development skills. Pared with VIBE coding platform I have built a feature rich and competitive set of solutions for the SMB market. **What do you dislike about Retell AI?** Nothing so far. It offers everything I need for my business at this time. Only area I am figuring out is how to access learning and certification materials that are direct from Retell and not vids/material from other builders. I think the Community approach is great, but years of legacy Enterprise development and support methodology have taught me a direct vendor model is requirement for building credible offerings in the larger market space. **What problems is Retell AI solving and how is that benefiting you?** AI Voice Portal solutions that offer truly customer friendly & intuitive customer service and engagement tools without legacy bloat and massively complex offers from big players ### 5. Best ai agent **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Marketing and Advertising **Reviewed Date:** April 03, 2026 **What do you like best about Retell AI?** Retell AI is one of the best AI voice agents I’ve used. It’s very easy to set up and use, and the voice interactions feel smooth and natural. I especially like how quickly you can deploy a working agent without needing complex technical knowledge. It makes building voice automation accessible and efficient. **What do you dislike about Retell AI?** One thing I’d love to see improved is deeper automation and integrations. For example, the ability to easily connect with CRMs or Excel/Google Sheets directly within the platform would make it much more powerful. Adding more built-in integrations for workflows and data syncing would significantly enhance its usefulness for business operations. **What problems is Retell AI solving and how is that benefiting you?** Retell AI helps solve the problem of handling high volumes of client communication without requiring extensive human labor. As someone who runs an agency, this is a huge benefit because it allows me to automate client interactions like calls, follow-ups, and basic support without needing to constantly hire or manage staff. It reduces operational costs, saves time, and improves efficiency, while still delivering a consistent experience for clients. This allows me to scale my services more easily and focus on higher-level business growth instead of repetitive tasks. ### 6. Retell is becomming my next outbount voice agent **Rating:** 5.0/5.0 stars **Reviewed by:** Sudharsan D. | AI Engineer, Small-Business (50 or fewer emp.) **Reviewed Date:** June 08, 2026 **What do you like best about Retell AI?** I really like the single prompt based workflow design, Which reducing the complexity of building nodes and edges. It is easy to start with zero knowledge about voice AI. **What do you dislike about Retell AI?** I don't have any dislike about Retell AI **What problems is Retell AI solving and how is that benefiting you?** It's solving the AI based voice process Automation. I am running a Software Internship providing company as part time hobby, using this retell ai, i was able to make my outbound sales calls to students, It saving a lot of time for me. ### 7. AI receptionist that actually works for a dental clinic **Rating:** 5.0/5.0 stars **Reviewed by:** Brandon K. | Product Manager, Customer Data Platform (CDP), Mid-Market (51-1000 emp.) **Reviewed Date:** April 03, 2026 **What do you like best about Retell AI?** What I like most is that Retell makes it relatively easy to build a voice agent that can actually take actions, not just talk. Features like function calling, knowledge base support, inbound and outbound calling, and post call analysis make it feel like a complete platform rather than just a voice layer. The low latency also helps conversations feel more responsive, which matters a lot for use cases like a dental clinic receptionist handling bookings and common patient questions. **What do you dislike about Retell AI?** The main downside is that even with the built in tooling, you still need to spend time tuning flows, prompts, and integrations to handle real world edge cases well. Knowledge base retrieval and function calling are useful, but they do not fully remove the work needed to make the agent reliable in more complex conversations. The platform has strong monitoring and QA features, but that also reflects the reality that production voice agents still need ongoing review and optimization after launch. **What problems is Retell AI solving and how is that benefiting you?** Retell AI helps solve missed calls and front desk overload for dental clinics, especially during peak hours and after hours. By using a low latency voice agent that can handle inbound calls, book appointments through function calling, and answer common patient questions using a knowledge base, it reduces the need for manual call handling. This improves clinic efficiency while also capturing more bookings that would otherwise be missed, which directly impacts revenue. It also gives better coverage without needing to hire additional staff, while still maintaining a responsive and natural call experience for patients. ### 8. One of the best agentic platforms. **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Health, Wellness and Fitness **Reviewed Date:** March 29, 2026 **What do you like best about Retell AI?** What stands out most about Retell AI is how quickly you can go from idea to a fully functioning voice agent. The platform abstracts away a lot of the complexity around telephony, speech recognition, and LLM orchestration, which makes it incredibly powerful for building production-grade voice experiences. The real-time responsiveness and flexibility in designing conversational flows are especially impressive. It’s also great how configurable the system is—you can fine-tune prompts, manage variables, and integrate with external systems without needing a heavy infrastructure lift. Overall, it enables teams to move fast and iterate quickly, which is critical when building AI-driven experiences. **What do you dislike about Retell AI?** One area for improvement is the naturalness of conversations out of the box—agents can sometimes include filler words or sound slightly robotic without careful prompt tuning. This means you need to spend extra time refining prompts to get a truly polished, human-like experience. Additionally, debugging and observability could be stronger; when something goes wrong in a conversation flow, it’s not always immediately clear where the issue originated. Lastly, while the platform is powerful, some workflows (like handling edge cases or complex branching logic) can require workarounds that could be simplified with more native tooling. **What problems is Retell AI solving and how is that benefiting you?** Retell AI solves the complexity of building and deploying production-grade voice agents. Traditionally, creating a reliable voice experience requires stitching together telephony, speech-to-text, text-to-speech, and LLM orchestration—along with handling latency, interruptions, and real-time context. Retell abstracts all of that into a single platform. For us, this has been a massive accelerator. Instead of spending months on infrastructure, we can focus on designing high-quality patient interactions and workflows. It enables us to quickly launch voice agents for tasks like patient intake, appointment handling, and call routing, while continuously iterating based on real conversations. The benefit is faster time to market, lower engineering overhead, and the ability to deliver a more responsive, always-available experience for our users. ### 9. The backbone of our AI voice product — reliable, fast, and developer-friendly **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Hospital & Health Care **Reviewed Date:** March 26, 2026 **What do you like best about Retell AI?** We've been using Retell AI to power the voice agents for our AI receptionist product for medical clinics in Dubai. After evaluating several alternatives, Retell stood out for its low latency, natural-sounding conversations, and the flexibility it gives you in building complex agent flows. The dynamic variables feature is a game changer for us — it lets us run a single agent that serves multiple clinics, each with their own name, doctors, hours, and custom information injected at call time. The transfer call functionality works reliably, and the web call SDK made it easy to embed a live demo directly on our website. The prompt-based approach gives you full control over agent behaviour without needing to touch any underlying model code. The LLM swap feature is also useful — we've tested different models and can switch without rebuilding anything. Support has been responsive and the documentation is solid. The dashboard gives good visibility into call logs and agent performance. If you're building a voice AI product and need something production-ready, Retell is genuinely one of the best platforms out there right now. Highly recommend. **What do you dislike about Retell AI?** The main limitation we've run into is the lack of native support for UAE or Middle East phone numbers — we currently have to use US numbers and forward calls, which adds a small amount of friction for our clinic clients. A wider range of supported regions for phone number provisioning would make Retell a complete end-to-end solution. The analytics dashboard could also be more detailed — things like per-agent call breakdowns and language detection would save us from having to build those features ourselves. Minor issues overall given how strong the core product is. **What problems is Retell AI solving and how is that benefiting you?** We're building an AI voice receptionist product for medical clinics in Dubai. The core problem we needed to solve was getting an AI to handle real phone calls — answering, understanding natural speech, following complex booking flows, and transferring calls — all with low enough latency to feel like a real conversation. Retell solves all of that out of the box. Before finding Retell, we were looking at stitching together separate STT, LLM, and TTS providers ourselves, which would have taken months to get right. Retell gave us a production-ready voice layer in days. The biggest benefit for our business is speed to market. We were able to build, test, and deploy a fully working AI receptionist — complete with live calendar booking, dynamic clinic variables, multilingual support, and call transfers — in a fraction of the time it would have taken building from scratch. That's a direct business advantage when you're a solo founder trying to move fast. ### 10. Awesome platform! The low latency and realistic turn-taking completely change the feel of AI agents. **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Computer Software **Reviewed Date:** March 25, 2026 **What do you like best about Retell AI?** The abstraction layer is fantastic for rapid prototyping. It handles the heavy lifting of telephony and WebSocket streaming out of the box, allowing developers to deploy functional voice agents much faster than configuring the underlying infrastructure from scratch. **What do you dislike about Retell AI?** The trade-off for that ease of use is a lack of granular control over the media routing and WebRTC pipeline. If you are building a highly customized, large-scale multi-agent SaaS, the restrictions on custom agent server architectures and the managed-service pricing model can become bottlenecks. **What problems is Retell AI solving and how is that benefiting you?** Building a scalable B2B voice AI platform requires managing complex orchestration between SIP trunks, WebRTC, Speech-to-Text, and the LLM. Retell AI completely abstracts this infrastructure nightmare. It solves the problem of high latency and unnatural conversational flow by handling barge-ins (interruptions) and turn-taking natively. The primary benefit is a drastically accelerated time-to-market. Instead of spending months building and debugging the underlying telecom pipeline for concurrent inbound and outbound calls, I can focus entirely on building custom agent logic and the core features of the SaaS application. ### 11. Amazing AI Agents **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Computer Software **Reviewed Date:** May 10, 2026 **What do you like best about Retell AI?** Quality and selection of voices, flawless integration with n8n, cal.com, twilio, gohighlevel, ergonomic interface which even in 2026 is rare - I insist is rare!, then it's also the analytics, billing, huge selection of LLMs. Overall an amazing platform **What do you dislike about Retell AI?** I'd love to be able to directly buy phone number for much more places in the world (Latam, Western and Eastern Europe, Asia, Africa, etc.) - the current offer is very limited and I do understand it's not the main business, but it will help a lot. Even N America there are 2 out of 23 countries were you can buy phone numbers... **What problems is Retell AI solving and how is that benefiting you?** helps me build voice AI Agents for my clients doing all sort of things inbound, outbound agents, call transfers, all sorts of agents, it's huge. ### 12. Fast. Simple. Powerful. The best part? It sounds human. If you’re building voice AI no-brainer. **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services **Reviewed Date:** March 24, 2026 **What do you like best about Retell AI?** Retell AI is honestly one of those tools that just works. Simple. Fast. Powerful. The best part? You don’t feel like you’re fighting the tech — it feels like the tech is working for you. If you’re building voice agents, doing inbound or outbound calls, or trying to automate real conversations… Retell makes it ridiculously smooth. Low latency. Natural voices. Clean setup. No nonsense. The truth is… most voice platforms overcomplicate things. Retell doesn’t. You plug it in. Connect your stack. And suddenly… your AI is actually talking like a human. If you’re serious about voice AI — this is not optional. It’s a weapon. very short Retell AI just works. Fast. Simple. Powerful. The best part? It sounds human. If you’re building voice AI — this is a no-brainer. **What do you dislike about Retell AI?** Nothing , Nada , it just work , maybe i was a bit confused about webhooks ect **What problems is Retell AI solving and how is that benefiting you?** Missed calls = lost money Businesses can’t answer every call — especially after hours. Retell fixes that by answering every single call, instantly ### 13. Retell Agents are fast, responsive, and accurate **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Computer Software **Reviewed Date:** June 08, 2026 **What do you like best about Retell AI?** Retell AI makes it surprisingly easy to build and deploy voice agents without needing extensive telephony or AI infrastructure experience. The platform integrates speech recognition, language models, and voice synthesis into a single workflow, which significantly reduces development time. I also appreciate the ability to connect external tools and APIs, customize call flows, and quickly test changes. The call quality and responsiveness are generally strong, making it a practical solution for businesses looking to automate phone conversations. **What do you dislike about Retell AI?** Some parts of the platform can be difficult to navigate, especially for new users. Documentation and dashboard terminology occasionally assume prior knowledge, which can make setup more challenging than expected. Certain advanced features require additional configuration and troubleshooting, and pricing can become difficult to estimate as usage scales. More onboarding guidance and clearer explanations of settings and agent configuration options would improve the overall experience. **What problems is Retell AI solving and how is that benefiting you?** Fills gaps in local service businesses, recapturing leads and generating business. ### 14. Perfect **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Accounting **Reviewed Date:** March 30, 2026 **What do you like best about Retell AI?** What I like best about Retell AI is its ability to create highly natural, human-like voice interactions in real time. The responsiveness and low latency make conversations feel smooth and engaging, which is critical for building truly effective voice applications. I also appreciate how flexible and developer-friendly it is, allowing seamless integration and customization for different use cases. Overall, it strikes a great balance between performance, realism, and ease of use, making it a powerful tool for modern conversational experiences **What do you dislike about Retell AI?** There’s very little to dislike about Retell AI, but like any platform, there’s always room for even more advanced customization as needs grow. **What problems is Retell AI solving and how is that benefiting you?** Retell AI solves the challenge of building fast, natural, and reliable voice-based interactions without complex infrastructure. This benefits me by saving development time, reducing costs, and allowing me to focus more on creating better user experiences instead of handling low-level voice and latency issues. ### 15. simple and powerful **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Hospitality **Reviewed Date:** June 08, 2026 **What do you like best about Retell AI?** From what I've used it so far, I find the agent's programming part extremely powerful, intuitive, and easy to use. I'm always discovering new features that leave me very impressed. **What do you dislike about Retell AI?** So far I haven't noticed anything I don't like. **What problems is Retell AI solving and how is that benefiting you?** It can solve my company's and my clients' problems by providing a front office service that can drastically reduce the number of calls to both technical and sales support. Furthermore, many of the questions my clients need to answer can be absorbed by AI. For example, we operate in a mountainous area. Most of the calls to my clients during the winter are about "how much snow is there on the ski slopes?" ### 16. Best AI for telephone sales without a doubt! **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Marketing and Advertising **Reviewed Date:** March 25, 2026 **What do you like best about Retell AI?** I came into this quite sceptical - I had never really done anything more advanced in AI than using ChatGPT. I spent hours researching to make sure I was using the right system & that led me to Retell AI. Building the perfect agent is hard, but building an agent that works before getting more technical is actually way easier than I would of thought - I am moving more towards perfect everyday using the more advanced features - learning as I go. **What do you dislike about Retell AI?** My only gripe about Retell is that because I am UK based I would appreciate more UK accents when building an agent - hopefully these will come as the ecosystem grows. **What problems is Retell AI solving and how is that benefiting you?** I am still deep in the testing faze, but it has really opened my eyes as to what is possible - I don't think we are far from agents closing sales from start to finish. ### 17. Great service great price **Rating:** 4.5/5.0 stars **Reviewed by:** Sabih S. | C.E.O, Small-Business (50 or fewer emp.) **Reviewed Date:** June 24, 2026 **What do you like best about Retell AI?** The sub-second latency and human-like voice models are unmatched. The custom function capabilities allow us to build autonomous, enterprise-grade sales architecture by triggering external webhooks mid-conversation to close high-ticket deals. **What do you dislike about Retell AI?** he native integrations could be stronger. Relying on custom webhooks and phantom forwarding to bridge Retell with GoHighLevel sub-accounts introduces unnecessary friction. A native LeadConnector/GHL integration would make scaling much faster **What problems is Retell AI solving and how is that benefiting you?** Retell AI solves the bottleneck of human capital in high-ticket sales and lead intake. By deploying sub-second latency conversational agents that trigger live webhooks and SMS payloads mid-call, we are completely replacing manual front-desk operations with autonomous infrastructure that qualifies and closes 24/7 ### 18. Great Experience with Retell AI **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Information Technology and Services **Reviewed Date:** June 18, 2026 **What do you like best about Retell AI?** I have had an amazing experience with Retell AI. It is user-friendly, easy to implement, and cost-efficient. I have been working with Retell AI for the past year and have found it to be an excellent platform. It has consistently delivered reliable performance for building voice AI agents. I highly recommend giving it a try if you are looking for a solid solution for voice AI development. **What do you dislike about Retell AI?** I think should add more voices like gemini, and other top quality voices and also in different languages **What problems is Retell AI solving and how is that benefiting you?** Its helping business i am giving service to .. recover lost revenue on missed calls and customer support as well ### 19. Best Voice AI Agent **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Hospital & Health Care **Reviewed Date:** March 18, 2026 **What do you like best about Retell AI?** Retell makes it surprisingly easy to build and deploy voice agents quickly, especially for real-world use cases like reception, booking, and lead capture. The latency is solid, the voice quality feels natural, and the overall developer experience is clean. I also like how flexible it is with prompts and knowledge bases—it lets you iterate fast and get something production-ready without heavy engineering. **What do you dislike about Retell AI?** The biggest gap is around state management and structured flow control. A lot of critical behaviour (like handling contact preferences, not repeating questions, or remembering collected details) still relies too heavily on prompt engineering instead of built-in logic. This can make agents inconsistent at scale. Better native handling for forms, memory, and conversation state would significantly improve reliability. Also, debugging conversations and understanding why an agent made a decision could be clearer. **What problems is Retell AI solving and how is that benefiting you?** Retell AI is solving the problem of handling high-volume inbound calls without needing full-time staff, especially for use cases like reception, booking enquiries, and lead capture. It allows me to run a 24/7 AI receptionist that can qualify leads, collect structured information, and reduce missed opportunities after hours. This improves response time, captures more enquiries, and reduces operational load on the team. It also makes it possible to scale call handling without increasing headcount. ### 20. The best tool for creating voice agents with AI **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Information Technology and Services **Reviewed Date:** March 17, 2026 **What do you like best about Retell AI?** The ease of integration with telephony providers via SIP trunking, the natural quality of voices with ElevenLabs, and the ability to customize the agent with dynamic variables. The latency is very low and the conversations sound really natural. Additionally, the integration with n8n allows for the automation of complete customer acquisition and service flows. **What do you dislike about Retell AI?** The documentation for integrations with European telephony providers could be more detailed. The initial setup with Spanish numbers requires quite a bit of trial and error. It would also be helpful to have more examples of integration with automation tools like n8n. **What problems is Retell AI solving and how is that benefiting you?** Retell AI solves the problem of 24/7 customer service without the need for human staff. It allows the creation of voice agents that sound natural and can manage calls, schedule appointments, and qualify leads automatically. For my agency, it allows me to offer my SME clients an automated acquisition system that was previously only available to large companies. The main benefit is the saving of time and scalability — the same agent can handle a thousand calls simultaneously. ### 21. very useful platform for AI vocal agents **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services **Reviewed Date:** March 15, 2026 **What do you like best about Retell AI?** The latency is incredibly low, which is the most critical factor for a natural-sounding voice agent. I love how easily it integrates with existing LLMs and the flexibility provided by the API for handling complex call flows and custom tools. **What do you dislike about Retell AI?** While the documentation is generally good, I’d like to see more advanced examples for handling edge cases in multi-turn conversations. Additionally, the cost per minute can scale quickly for high-volume outbound campaigns. **What problems is Retell AI solving and how is that benefiting you?** Retell AI eliminates the high latency and "robotic" delays that typically plague voice bots, allowing for natural, real-time conversations that feel truly human. By automating high-volume outbound and inbound calls with sub-800ms response times and intelligent interruption handling, it solves the challenge of scaling customer operations without increasing headcount or sacrificing lead quality. For me, this translates to significant cost savings, 24/7 availability for my customers, and perfectly structured data syncing directly to my CRM after every interaction. ### 22. Exceptional Low-Latency Voice AI for Building Conversational Sales Agents **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Consumer Services **Reviewed Date:** March 14, 2026 **What do you like best about Retell AI?** Retell AI provides incredibly realistic, low-latency conversational models that make deploying automated sales and lead follow-up agents seamless. The API is robust and integrates perfectly with complex backend workflows and custom automation setups. Setting up custom SIP trunks for routing calls is highly reliable, allowing for scalable deployment of outbound cart recovery agents and inbound qualification bots. The interruption handling and natural conversational pacing make the agents sound distinctly human, which is crucial for maintaining high engagement rates on cold or warm calls. **What do you dislike about Retell AI?** While the platform is incredibly powerful, the documentation for highly complex, edge-case SIP configurations or ultra-specific prompt tuning could be a bit more fleshed out. Additionally, scaling up massive concurrent batch calling campaigns requires careful budget monitoring, though the ROI from the recovered leads generally justifies the cost. **What problems is Retell AI solving and how is that benefiting you?** It completely automates the top of the sales funnel and customer follow-up. Instead of relying on manual dialers to chase down leads or abandoned carts, voice AI agents handle immediate outreach, answer initial FAQs, and qualify prospects in real-time. This ensures zero drop-off, handles scale effortlessly, and successfully books high-intent appointments directly onto the calendar without human intervention. ### 23. it was easy to use, especially how you can test call your agent. **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Computer Software **Reviewed Date:** May 20, 2026 **What do you like best about Retell AI?** Easy to set up AI voice agents without needing to code. The interface is intuitive and it integrates well with webhooks for automating bookings and call workflows. **What do you dislike about Retell AI?** Still early in using it so hard to say, but pricing could be clearer for small businesses and solo developers just getting started. It was also hard to connect to cal.com for 3 diffrent types of business. It was also hard do call transfer, it never seemed to work when i tested it out. **What problems is Retell AI solving and how is that benefiting you?** It is helping me automate phone reception for local businesses, solving the problem of missed calls and no after-hours support. This benefits me by allowing me to offer an affordable AI receptionist service without hiring staff. ### 24. I am completely configuring ALL my agents with claude code. **Rating:** 4.0/5.0 stars **Reviewed by:** Denis L. **Reviewed Date:** April 15, 2026 **What do you like best about Retell AI?** Retell AI makes it incredibly easy to connect AI voice agents to real phone numbers. The SIP trunking integration with Twilio works seamlessly, and the dashboard makes it simple to assign agents to inbound numbers. The agent builder and prompt configuration are intuitive, and the call quality is excellent. **What do you dislike about Retell AI?** The initial setup of custom telephony via SIP trunking can be confusing, especially for first-time users connecting Twilio numbers. Better step-by-step documentation for the Twilio integration would help. Also, the dashboard occasionally has UI loading issues when navigating between sections. **What problems is Retell AI solving and how is that benefiting you?** Retell AI helps me automate inbound calls for my AI service agency, The Agent Factory. It handles client inquiries, answers questions about our Claude Academy training program, and books discovery calls via Cal.com — replacing the need for a human receptionist and enabling 24/7 availability. ### 25. Easy to use, reliable **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Human Resources **Reviewed Date:** March 13, 2026 **What do you like best about Retell AI?** Retell AI is very fast so there are no long silences during a call. It feels like a real person because it stops talking right away if the customer interrupts. You can connect it to your other tools easily with their clear instructions. The system is very strong and does not crash when many people call at the same time. This makes it perfect for local businesses that cannot afford to miss a single lead. **What do you dislike about Retell AI?** The pricing is hard to understand because you have to pay different fees for the phone line and the AI. It is difficult for a normal person to set up because you need to know how to code to make it work well. If you have a problem, it can take a long time to get an answer from their support team. You also have to pay the full price even when you are just testing the system to see if it works. **What problems is Retell AI solving and how is that benefiting you?** Retell AI stops you from losing money when you cannot answer the phone. It answers every call immediately so your customers do not go to a competitor. This helps you prove that your service works during a 7-day pilot. It also saves you time by taking notes and filling out your calendar automatically. ### 26. its an amazing product, good job retell team **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Construction **Reviewed Date:** March 13, 2026 **What do you like best about Retell AI?** Incredible Realism and Low Latency: The sub-second response times make conversations feel incredibly natural. The voices avoid those awkward robotic pauses, and the system handles "barge-ins" beautifully—meaning if a caller interrupts mid-sentence, the agent gracefully stops and listens just like a real human would. Developer-Focused Flexibility: It doesn't box you in with rigid constraints. You get the raw building blocks—like webhooks, custom LLM integrations, and robust APIs—giving you complete freedom to design exactly how the agent behaves and seamlessly tie it into custom backends. Production-Ready Reliability: It is built to scale effortlessly. Knowing the infrastructure can handle high-volume concurrent calls while providing built-in compliance (HIPAA, SOC 2, GDPR) and detailed post-call analytics takes a massive load off the engineering and deployment process. **What do you dislike about Retell AI?** The Rewarding Learning Curve: Because it is so robust and developer-centric, it skips the simplistic no-code visual builders. You really have to roll up your sleeves and write code to unlock its full potential. While it takes a bit more time to map out complex, multi-language flows, the exciting trade-off is that you get absolute, fine-grained control over the final product! Modular Pricing Structure: The billing is layered, meaning you pay for the base minutes plus the specific LLM, speech-to-text, and voice engines you choose to plug in. While it makes forecasting exact monthly costs a bit of a mathematical puzzle at first, it is actually a huge plus because it ensures you are only ever paying for the exact, top-tier components you want to use. **What problems is Retell AI solving and how is that benefiting you?** Building a voice AI from scratch is notoriously difficult because you have to string together several complex systems—Speech-to-Text (ASR), the "brain" (LLM), and Text-to-Speech (TTS)—while dealing with the messy reality of live audio. Retell AI steps in to solve these heavy-lifting infrastructure problems: The Latency Problem: In a traditional, pieced-together API chain, processing audio to text, generating an AI response, and converting it back to audio takes several seconds. Retell optimizes this entire pipeline to achieve sub-second latency, eliminating the awkward silences that ruin the illusion of a real conversation. The "Turn-Taking" Problem: Humans interrupt each other, use filler words, and pause to think. Retell AI handles "barge-ins" natively. It knows exactly when to endpoint (stop listening and start generating) and instantly stops talking if a user interrupts, rather than stubbornly talking over them. The Orchestration Problem: Instead of forcing developers to manually manage raw audio WebSockets, telephony SIP trunks, and three different AI provider APIs simultaneously, it wraps the entire complex voice orchestration stack into a single, unified platform. How That Benefits Me Honestly, it completely changes the game for development. By offloading the raw infrastructure and audio processing to Retell, here is how it directly benefits my workflow: Laser Focus on Apex's Brain: I don't have to waste weeks writing boilerplate code just to handle audio streaming or secure telephony connections. Instead, I get to spend 100% of my time fine-tuning Apex's actual intelligence, prompt engineering, and custom backend logic to make the agent exceptionally smart. A Truly Natural Product: Because Retell solves the latency and interruption issues so elegantly out-of-the-box, I can confidently put Apex in front of users knowing the interaction will feel fluid, professional, and remarkably human, rather than like a clunky robot. Rapid Prototyping to Production: It allows me to take complex voice flows from a local test environment straight to a highly reliable, production-ready state in a fraction of the time. It turns what used to be a massive engineering headache into a smooth, highly scalable process! ### 27. Honest Review about Retell (Why it's Best than other AI's?) **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Business Supplies and Equipment **Reviewed Date:** May 19, 2026 **What do you like best about Retell AI?** I like the simplicity of Retell like we can connect to platforms very easy ad if i would specific about something tha would be tool like there are built in tools and also very easy to customize. **What do you dislike about Retell AI?** Well the thing i dislike about Retell AI is maybe nothing like it doesnt have that much hold but i dont think for small Agencies like mine should have that high level of hold but yea it can be pain in future but not in starting **What problems is Retell AI solving and how is that benefiting you?** Well retell Ai is making very easy to create Ai voice agents just by single prompts and its benifiting me to grow my AI Agency by providing Ai voice receptionist and outbound lead caller ### 28. Very satisfied **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Computer Software **Reviewed Date:** June 18, 2026 **What do you like best about Retell AI?** I´am very impressed whit how natural and human-like the voice agents sound. The platafom is incredibly intuitive, and the integration proces is seamless, which has significantly improvesd our workflow. **What do you dislike about Retell AI?** while the plataform is excellent, I woullove to see more granular customization options for specific use cases. Additional, more flexible pircing tiers for smaller proyects woul be great improvement. **What problems is Retell AI solving and how is that benefiting you?** Retell AI is solving the technical completxity of building voice-based AI agents. By using their infrstructure, I can efficiently develop and escale voice assitant solutions for SMEs,which significantly reduces muy development time and allows me to offer high-quality human-like voice services to my clientes. ### 29. Outstanding AI Call Automation Platform **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Food Production **Reviewed Date:** March 13, 2026 **What do you like best about Retell AI?** What impressed us most about Retell AI is how natural the voice conversations feel. Compared to other voice AI tools we tested, the latency is very low and the interactions feel surprisingly smooth. The API is flexible and makes it possible to integrate AI calling into existing systems without too much complexity. It’s a powerful platform if you want to automate phone interactions while still maintaining a professional customer experience. **What do you dislike about Retell AI?** The platform is very powerful, but because of that it can take a little time to understand all configuration options when you first start. Some additional examples and ready-made templates for common use cases would help new users get started faster. That said, once everything is set up, the system works reliably. **What problems is Retell AI solving and how is that benefiting you?** Handling incoming calls manually can quickly become a bottleneck, especially during busy periods. Retell AI helps us automate routine phone interactions so that customers still receive immediate responses without needing a human agent for every call. This reduces operational workload and ensures calls are handled consistently, even outside business hours. As a result, our team can focus on more complex customer requests instead of repetitive phone tasks. ### 30. Retell is a strong platform, very effective and not too easy but clearly enough to develop projects **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Health, Wellness and Fitness **Reviewed Date:** May 14, 2026 **What do you like best about Retell AI?** I really like the many agents it has, with different voices, and all the monitor functions it has to provide enough information to the customer about how the system is working. **What do you dislike about Retell AI?** It is probably because I was in a rush that it wasn't as immediately easy as I´d like to understand all the different tabs. In reality, I don't have anything that dislike me from Retell. **What problems is Retell AI solving and how is that benefiting you?** Retell has helped me provide a voice agent for different businesses that don't want to rely on a human receptionist. It's given me the opportunity to create this automation project with an AI agent to answer phone calls, schedule meetings or appointments, and provide information while the professional is busy with other activities. ### 31. easy to use, easy to understand. i can make complex webflows with ease without stress or coding **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Hospital & Health Care **Reviewed Date:** June 25, 2026 **What do you like best about Retell AI?** the fact you can edit your errors and test that part SPECIFICALLY, and the fact that you can test it over and over **What do you dislike about Retell AI?** i don't like how the bar that shows like conversation function sms... at the beginning i couldn't scroll to the bottom so thought sms was it until it randomly showed me the extract variable forcing me to redo workflow. so if there could be a bar to use to scroll up and down that would be lovely. also i cant change my speaker. could be because i haven't signed up for the paid stuff yet but i'm trying to get the british woman and it refuses. **What problems is Retell AI solving and how is that benefiting you?** helping me build an ai voice agent that i will use as a demo to show to future clients having such a platform... i am very greatful. ### 32. Finally, a simplified voice AI platform that actually works in production **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Marketing and Advertising **Reviewed Date:** March 12, 2026 **What do you like best about Retell AI?** The reliability in production. We build outbound voice AI agents for clients and Retell is the first platform we've trusted enough to put in front of real leads at scale. Calls handle interruptions naturally, recover from unexpected responses without breaking, and the post-call analysis returns structured data (booked status, objections, extracted variables) that hits the CRM automatically via webhook. The ElevenLabs voice integration is seamless and the whole stack, from LLM config to live calls, took less than a day to deploy. **What do you dislike about Retell AI?** The documentation could go deeper on edge cases and the dashboard analytics could be more prominent. Call performance data is there but you have to dig for it. Neither is a big deal, just areas with room to grow. **What problems is Retell AI solving and how is that benefiting you?** Retell lets us deploy outbound voice agents that reactivate leads and book meetings automatically, removing the need for manual follow-up and giving our clients a direct revenue return without adding headcount. ### 33. Easy to set up **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Computer Hardware **Reviewed Date:** March 12, 2026 **What do you like best about Retell AI?** What I like most about Retell AI is its flexibility for building serious voice agents beyond simple prompt-based bots. The platform gives good control over call behavior, speech settings, custom LLM integrations, and structured conversation flows. I also like that it supports advanced use cases like multilingual assistants, external tools, and custom backend logic, which makes it useful for real production scenarios rather than only demos. The interface is modern, testing is convenient, and it is clear that the product is built for developers and teams who want more control over the voice stack. **What do you dislike about Retell AI?** The biggest downside is that setup can become confusing once you move beyond the basic use case. Some configuration areas, especially around custom LLMs, voices, transcription, and function/tool behavior, are not always intuitive, and it can take time to understand how everything fits together. There is a noticeable learning curve for advanced integrations, and debugging complex voice flows or backend-connected agents can be harder than it should be. I would also like clearer documentation and more step-by-step guidance for production-style setups, especially when combining multilingual transcription, custom backends, and external voice providers. **What problems is Retell AI solving and how is that benefiting you?** Retell AI solves the problem of turning voice AI ideas into something that can actually be tested and deployed in real phone-call scenarios. Instead of building the entire telephony, speech, and voice orchestration stack from scratch, I can focus on my backend logic, business workflows, and conversation design. That saves development time and makes it much easier to test live call experiences, multilingual voice interactions, and structured call flows. It benefits me by speeding up prototyping, reducing infrastructure complexity, and giving me a practical environment to connect voice agents with my own backend systems. ### 34. The Best Low-Latency Voice AI Platform for Developers **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Accounting **Reviewed Date:** April 19, 2026 **What do you like best about Retell AI?** I’ve been using Retell AI to build voice agents, and the experience has been phenomenal. The 600ms latency makes conversations feel incredibly natural. The API is very well-documented, making it easy to integrate with CRMs and other tools. It’s a game-changer for anyone looking to automate phone calls with high quality and reliability. **What do you dislike about Retell AI?** While Retell AI has the best latency in the market, the pricing model is a bit steep for small startups. Also, the initial setup and prompt engineering require a steep learning curve. I wish there were more pre-built templates for common use cases to make the onboarding process faster. **What problems is Retell AI solving and how is that benefiting you?** Traditional AI voice systems often have delays of 1.5 seconds or more, making conversation feel stilted. Retell AI achieves industry-leading low latency (~600–800ms), which mimics natural human response times. ### 35. What problems does Retell AI solve **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Real Estate **Reviewed Date:** March 11, 2026 **What do you like best about Retell AI?** What I like most about Retell AI is how easy it is to build production-ready voice AI agents that can handle real phone calls. **What do you dislike about Retell AI?** One area that could improve is providing more built-in templates and guided setup for common business use cases like real estate, healthcare, and customer support. While the platform is powerful, new users may need some time to understand the best way to structure prompts, call flows, and webhook integrations. It would also be helpful to have more native integrations with popular CRMs and automation tools. Currently these integrations are possible through webhooks, which works well, but direct integrations could make onboarding even easier for non-technical users. Overall these are minor improvements and the platform is already very capable for building voice AI solutions. **What problems is Retell AI solving and how is that benefiting you?** Retell AI is helping automate inbound and outbound phone conversations for businesses. Instead of missing calls or manually handling every inquiry, we can deploy AI voice agents that answer calls instantly, qualify potential customers, and capture lead information automatically. This benefits our workflow because every call can be processed, summarized, ### 36. Most Human World Talker **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Marketing and Advertising **Reviewed Date:** April 30, 2026 **What do you like best about Retell AI?** Retell lets you create any voice agent you can imagine, powering it up with super powers, using MCP tools and functions. The response time and the top tier quality of the voice is something that will keep blowing people's minds every single time they interact with one of these agents. **What do you dislike about Retell AI?** Nothing. I am thrived to see how this company scales in the long run. It will definetely impact the whole world, and we are starting to see its true power. **What problems is Retell AI solving and how is that benefiting you?** Retell agent handbook is one of the best improvements they've made so far. I do not need to think the best possible prompts to add to my ai agent because they are already built for me. Retell just keeps making this game easier to play. ### 37. Retell is w/out peers when it comes to low latency, high fidelity audio, natural language Ai apps. **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in E-Learning **Reviewed Date:** May 28, 2026 **What do you like best about Retell AI?** Not having to deal with delicate pipelines **What do you dislike about Retell AI?** I had 1 persistent error that took days to fix **What problems is Retell AI solving and how is that benefiting you?** This was my life before Retell: CLIENT ↔ RT AUDIO GATEWAY ↔ STREAMING STT ↔ LLM/ORCH ↔ TOOL EXEC/MEM ↔ STREAMING TTS ↔ CLIENT PLAYBACK..... I almost forgot, lets add some real world: NET JITTER → PACKET LOSS → WS DESYNC → TOKEN EXPIRY → BUFFER UNDERFLOW → LATENCY SPIKES → STATE DRIFT → RETRY STORMS → SESSION FAILURE.....Long story short, if you need high fidelity, super low latency, natural feeling and sounding ai powered dialogue capabilities with the most advanced sound processing to ensure you do not end up with catastrophic feedback loops that would otherwise degrade a session to the point of inoperability.... just save yourself the hassle, the time and frustration.... Retell is the solution. Chances are you will retell someone the same exact thing im saying to you. ### 38. Great experience building AI voice agents quickly and efficiently **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Market Research **Reviewed Date:** April 18, 2026 **What do you like best about Retell AI?** “I really like the flexibility Retell AI offers. It’s easy to customize voice agents, integrate APIs, and quickly iterate on call flows without a lot of overhead. **What do you dislike about Retell AI?** One thing I found a bit challenging is adding phone numbers via SIP trunking. The setup process feels more complex than it should be, especially compared to platforms like Vapi where it’s much more straightforward. It would be great if this part was simplified to make onboarding easier. **What problems is Retell AI solving and how is that benefiting you?** Retell AI solves the challenge of building and deploying AI-powered voice agents for business use cases without requiring heavy infrastructure. It allows me to quickly create, test, and iterate on automated call workflows, which saves time and reduces development effort. This makes it easier to validate ideas, improve customer interactions, and scale voice automation more efficiently. ### 39. The best and simplest out there **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Construction **Reviewed Date:** March 20, 2026 **What do you like best about Retell AI?** I was looking for a quick and easy way to make a prototype for C-level executives and Retell AI was the best out there. Easy to use, professional, and exceptional. **What do you dislike about Retell AI?** No connection with WhatsApp and limited language support. **What problems is Retell AI solving and how is that benefiting you?** Retell AI eliminates the gap between conversational AI capabilities and real-world phone call deployment. It provides a ready-to-use infrastructure for building, deploying, and scaling AI voice agents — without requiring deep engineering resources. The main benefits: Speed — a functional voice agent can be live in days, not months Simplicity — conversation flows, LLM configuration, and phone number management in one platform Reliability — handles telephony, latency, and interruption detection out of the box Flexibility — connects to external systems via webhooks, enabling real business logic behind every call For companies running high-volume contact centers, it turns what was a 12-month engineering project into a weeks-long deployment ### 40. This is just so easy and self explanatory to use **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Human Resources **Reviewed Date:** May 23, 2026 **What do you like best about Retell AI?** What I like best about Retell AI is how fast and easy it is to build realistic AI voice agents that sound natural and can handle real business conversations. It offers powerful integrations, smooth conversational flow, and enough flexibility to create customised solutions for industries like healthcare, real estate, legal, and customer support without needing to build everything from scratch. **What do you dislike about Retell AI?** One thing I dislike about Retell AI is that some advanced customisations and integrations still require external tools and technical setup, especially for complex workflows. Pricing can also become expensive at scale, and support for international business numbers and region-specific telephony options could be improved further. **What problems is Retell AI solving and how is that benefiting you?** Retell AI is solving the problem of missed calls, slow response times, and repetitive customer service tasks for businesses. It allows companies to automate inbound and outbound calls with human-like AI agents that can answer questions, qualify leads, and book appointments 24/7. This benefits me by helping me build scalable automation solutions for businesses much faster, reduce development time, and deliver a more professional customer experience for clients. ### 41. Retell is super user friendly **Rating:** 5.0/5.0 stars **Reviewed by:** Micah K. | Owner/manager, Small-Business (50 or fewer emp.) **Reviewed Date:** March 08, 2026 **What do you like best about Retell AI?** What I like best about Retell AI is how quickly you can go from an idea to a fully working AI phone agent that actually sounds natural on real calls. The platform makes it easy to build AI receptionists that can answer questions, qualify leads, and book appointments without needing a huge engineering setup. I also like how flexible it is with integrations, so you can connect it to CRMs, booking systems, and other tools businesses already use. That makes it practical for real deployments instead of just demos. Overall, it feels built for people who want to ship AI voice agents that businesses can actually rely on. **What do you dislike about Retell AI?** One downside I’ve noticed with Retell AI is that the native scheduling integration is mainly built around Cal.com. While Cal.com works well, many businesses already use other booking platforms, so it would be great if there were more built-in integrations for different scheduling tools to make it easier to fit into existing workflows. **What problems is Retell AI solving and how is that benefiting you?** its solving the problem of missing phone calls. before retell my client missed 30% now 0% ### 42. Retell has been really easy to setup and the voice quality is fantastic! **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Consulting **Reviewed Date:** May 31, 2026 **What do you like best about Retell AI?** The setup has been really easy to learn and the customization features of the agents have been really great. I love how easy it is to control the cadence, interrupt tolerances, tone, etc. There are also many free voices to use that are all high quality. The dictation also works really well for post-call transcripts and it can easily hook into other platforms like Make. **What do you dislike about Retell AI?** I honestly haven't experienced any downsides of note yet **What problems is Retell AI solving and how is that benefiting you?** We do a lot of manual interviews for information gathering with our clients, using Retell has taken a lot of manual labor out of our process while still gathering all of the necessary info. ### 43. Unbelievable platform. Been using it since I've started learning about Voice AI **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Health, Wellness and Fitness **Reviewed Date:** March 06, 2026 **What do you like best about Retell AI?** The API-first approach makes integration incredibly fast — we had a voice agent live in production within days, not weeks. The real-time WebSocket architecture delivers noticeably low latency, which is critical for natural conversations. The ability to plug in any LLM (Claude, GPT) and any voice provider (ElevenLabs, Cartesia) gives us full control over the agent's personality without vendor lock-in. Custom tool calling during live calls is a game-changer for our use case — the agent can query databases, create tickets, and trigger workflows mid-conversation seamlessly. **What do you dislike about Retell AI?** The documentation for post-call webhooks and custom analysis fields could be more detailed — we had to experiment to get post_call_analysis_data working with custom schemas. Debugging failed calls can be tricky since logs don't always surface the exact point of failure in the conversation flow. Also, voice cloning options are limited to specific providers per account, so testing different voices across environments requires workarounds. **What problems is Retell AI solving and how is that benefiting you?** We build AI voice agents for SMBs that handle inbound customer support calls — technical troubleshooting, ticket creation, appointment scheduling, and order status inquiries. Before Retell, our clients relied on human operators for every call, which meant missed calls after hours, long hold times, and high staffing costs. With Retell, we deploy agents that answer 24/7, resolve common issues autonomously via real-time tool calls to CRMs and databases, and only escalate to humans when truly needed. One client reduced their call handling costs by over 60% in the first month while improving response times from minutes to seconds. ### 44. Well-built app **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Consulting **Reviewed Date:** May 20, 2026 **What do you like best about Retell AI?** The biggest advantage of Retell AI is how fast it lets you go from idea to a production-ready AI calling agent. The voice quality, latency, call handling, and developer experience are all strong. It’s especially impressive for outbound and inbound automation where reliability and natural conversation flow matter. The API structure and integrations also make it much easier to build real business workflows instead of just demos. **What do you dislike about Retell AI?** The platform can still feel limited when trying to build highly custom conversation logic or deeply complex workflows at scale. Debugging edge-case call behavior can sometimes take longer than expected, and pricing can become expensive for high-volume usage. More advanced analytics, monitoring, and native workflow tooling would also make the platform stronger for larger production deployments. **What problems is Retell AI solving and how is that benefiting you?** Retell AI solves the important parts of building AI phone agents — real-time voice streaming, low-latency conversations, interruption handling, telephony infrastructure, and call orchestration. Instead of building all of that internally, I was able to focus directly on the business logic and deployment side. That saved a massive amount of development time and made it possible to launch AI calling workflows much faster. It’s especially valuable for outbound campaigns, appointment booking, lead qualification, and support automation where speed and reliability matter. ### 45. Very easy to use interface. I would recommend to anyone looking to expand their company **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Events Services **Reviewed Date:** March 02, 2026 **What do you like best about Retell AI?** I appreciate how Retell AI makes voice cloning and text-to-speech workflows accessible while still sounding natural and expressive. The platform’s interface is intuitive, and the ability to generate high-quality voice output quickly — without needing deep audio engineering knowledge or complicated setups — is very convenient. I also like how real-time iteration and previewing help speed up creative workflows without sacrificing sound quality. **What do you dislike about Retell AI?** While Retell AI produces generally clear and intelligible output, I’ve noticed that the phonation layer can sometimes feel slightly uniform in longer passages. The prosody tends to flatten over extended dialogue, and there can be subtle inconsistencies in breath modeling and coarticulation between phrases. Greater control over micro-dynamics, pacing variation, and emotional contour would help the voices feel more human and less templated, especially in high-context conversational scenarios. **What problems is Retell AI solving and how is that benefiting you?** Retell AI addresses the challenge of generating high-quality, natural-sounding voice output without requiring deep technical setup or extensive audio engineering expertise. It simplifies the process of converting text into fluent, intelligible speech that preserves much of the expressive nuance found in human voice recordings. For me, this has been especially useful in rapid prototyping of vocal ideas, auditioning voice concepts for projects without having to book studio time, and iterating on voice-driven content quickly. The platform streamlines workflows, reduces the friction of traditional TTS tools, and enables creative experimentation with voice without complex configuration, saving time while maintaining a professional sound. ### 46. Functional, highly customizable software you can rely on **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Computer Software **Reviewed Date:** June 23, 2026 **What do you like best about Retell AI?** I really like how, whether it's navigating the interface or customizing a voice agent, nothing breaks in the process. I've had experience with previous services where the website would fail to work; buttons would break, agents wouldn't answer. Retell works as you expect it to 100% of the time. **What do you dislike about Retell AI?** I think the lack of a proper account settings/profile panel makes things a bit more painful, as there's no obvious way to setup 2FA, review signed-in sessions, etc. I would also expect a team/organization view for managing multiple workspaces. **What problems is Retell AI solving and how is that benefiting you?** Retell is providing effective, relatively cheap tools to lighten the load of receptionists, answer calls for clients, and make lives easier. Since using Retell, we have noticed our call agents are more responsive, tooling works, there aren't any odd prompt injections... everything just clicks. ### 47. Excellent AI voice agent platform **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Business Supplies and Equipment **Reviewed Date:** May 17, 2026 **What do you like best about Retell AI?** Retell AI makes it easy to build and test AI voice agents quickly. I like the clear dashboard, smooth call handling, good voice quality, and fast response time. It is very useful for creating AI receptionists and automating customer calls. **What do you dislike about Retell AI?** There is not much to dislike, but some setup steps can feel confusing for beginners, especially connecting phone numbers, webhooks, and integrations. More simple guides and examples would make it easier for new users. **What problems is Retell AI solving and how is that benefiting you?** Retell AI helps solve the problem of handling customer calls manually. It allows me to create an AI receptionist that can answer calls, understand customer needs, collect details, and respond quickly. This saves time, reduces missed calls, and makes the business look more professional. Retell AI helps with call automation, customer support, appointment handling, lead capture, and missed call follow-up. It reduces the need for a person to attend every call and helps businesses respond to customers faster. ### 48. Worth it **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Facilities Services **Reviewed Date:** June 18, 2026 **What do you like best about Retell AI?** Visual Interface for conversacional flows **What do you dislike about Retell AI?** Right now, I don’t think I dislike anything. The only thing that I could probably add it’s some sort of wizard that actually asks you what your goal is and it lets and it tells you which agent should you use a prompt agent or a conversational flow?. Personally, I started with a prompt and had to migrate to a conversation flow **What problems is Retell AI solving and how is that benefiting you?** Well, right now we till AI is functioning as a voice receptionist, oracle and assistant, It’s basically returning time to my client. I don’t sell AI I sell time ### 49. My review for Retell AI **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Information Technology and Services **Reviewed Date:** May 10, 2026 **What do you like best about Retell AI?** I have tried tens of voice agent builders, and I think Retell AI is the only builder that offers true production ready voice agents. This platform has the least number of bugs as compared to others. It also offers workflows, something that others does not have. Everything is in this platform, be it observability, mobile numbers, analytics, quality assurance and more. **What do you dislike about Retell AI?** I think the pricing is steep. The fast tiers can add up the costs very fast. Also, like any no-code builder, the choices are just too limited, like in terms of TTS, STT and LLM. **What problems is Retell AI solving and how is that benefiting you?** To build MVPs to close clients, and later on offering the client coded solutions, because they want total freedom. ### 50. Best compaired to others **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Animation **Reviewed Date:** February 27, 2026 **What do you like best about Retell AI?** What I like best about Retell AI is how easy it makes building a real human-like AI voice agent. The call quality sounds natural, the response time is fast, and it integrates smoothly with tools like calendars and workflows. I especially like that I can customize prompts deeply, connect it with automation tools like n8n, and create complete AI receptionists for businesses like salons. It saves time, reduces missed calls, and works 24/7 without breaks. For anyone building AI voice solutions, Retell AI makes the process simple and powerful. **What do you dislike about Retell AI?** One thing I dislike about Retell AI is that it sometimes misunderstands certain words, especially business-specific service names, which can affect booking accuracy. It also requires careful prompt tuning to avoid issues like duplicate bookings or incorrect time handling. Additionally, pricing can feel slightly high when testing or scaling voice agents frequently. With improvements in speech recognition accuracy and more built-in safeguards for booking logic, it would be even better. **What problems is Retell AI solving and how is that benefiting you?** Call 24/7 - [View Retell AI pricing details and edition comparison](https://www.g2.com/products/retell-ai/reviews?page=2§ion=pricing&secure%5Bexpires_at%5D=2026-07-21+08%3A25%3A54+-0500&secure%5Bsession_id%5D=8b27498f-8591-4f2d-af43-af0e870f426a&secure%5Btoken%5D=074cc940c8ce461f79f474dd35ea17aedaf9da3b5e9f29b7b0001b446673291b&format=llm_user) ## Retell AI Integrations - [Agentforce Sales (formerly Salesforce Sales Cloud)](https://www.g2.com/products/agentforce-sales-formerly-salesforce-sales-cloud/reviews) - [Asterisk](https://www.g2.com/products/asterisk/reviews) - [AWS Lambda](https://www.g2.com/products/aws-lambda/reviews) - [Azure Functions](https://www.g2.com/products/azure-functions/reviews) - [Boost.space](https://www.g2.com/products/boost-space/reviews) - [Bubble](https://www.g2.com/products/bubble/reviews) - 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[n8n](https://www.g2.com/products/n8n/reviews) - [OpenAI Whisper](https://www.g2.com/products/openai-whisper/reviews) - [Pipedream](https://www.g2.com/products/pipedream/reviews) - [RESTful JSON API](https://www.g2.com/products/restful-json-api/reviews) - [Salesforce CRM Dashboards](https://www.g2.com/products/salesforce-crm-dashboards/reviews) - [Twilio](https://www.g2.com/products/twilio/reviews) - [VICIdial](https://www.g2.com/products/vicidial/reviews) - [WhatsApp Business Platform](https://www.g2.com/products/whatsapp-business-platform/reviews) - [Zapier](https://www.g2.com/products/zapier/reviews) ## Retell AI Features **Lead Facilitation** - Customer-facing Chatbot - Lead Qualification - Lead Follow-up - Meeting Scheduling **Responses** - Personalization - Route To Human - Natural Language Understanding (NLU) **Automation - AI Agents** - Sales Follow-Up - Customer Interaction Automation - Lead Generation - Document Processing - Feedback Collection **Customization - AI Agent Builders** - Natural Language Configuration - Tone Customization - Security Guardrails **Voice Recognition - AI Voice Assistants** - Voice Recognition **Organization** - Opportunity and Pipeline Management - Data Entry - Integrations / APIs **Platform** - Conversation Editor - Integration - Human-In-The-Loop **Autonomy - AI Agents** - Independent Decision Making - Adaptive Responses - Task Execution - Problem Solving **Functionality - AI Agent Builders** - Omni-channel Support - Agent Branding - Proactive Response Capabilities - Seamless Human Escalation **Speech Synthesis - AI Voice Assistants** - Speech Synthesis - Customizable speech - Multiple voice actions **Performance Analysis** - Coaching - Peformance Tracking **Generative AI** - AI Text Generation - AI Text Summarization **Data and Analytics - AI Agent Builders** - Analytics & Reporting - Contextual Awareness - Data Privacy Compliance **Customer Query Resolution - AI Customer Support Agents** - Automated Ticket Resolution - Contextual Response Generation - Sentiment Analysis - Knowledge Base Utilization - Multilingual Support **Security and privacy - AI Voice Assistants** - Encrypted communication **Agentic AI - AI Agents** - Autonomous Task Execution - Multi-step Planning - Cross-system Integration - Adaptive Learning - Natural Language Interaction - Proactive Assistance - Decision Making **Sales Analysis** - ROI Forecasting - Sales Forecasting **Integration - AI Agent Builders** - Workflow Automation - API Usage - Platform Interoperability - CRM Data Integration **Customer Interaction Automation - AI Customer Support Agents** - Proactive Customer Outreach - Feedback Collection - Escalation Handling - Workflow Optimization **Compatibility - AI Voice Assistants** - Cross platform compatibility **Generative AI** - AI Text Generation - AI Text Summarization **Agentic AI - AI Sales Assistant** - Autonomous Task Execution - Multi-step Planning - Cross-system Integration - Adaptive Learning - Natural Language Interaction - Proactive Assistance - Decision Making **Automation** - Customer Interaction Automation - Feedback Collection - Document Processing **Autonomy** - Independent Decision Making - Adaptive Responses - Task Execution - Problem Solving ## Top Retell AI Alternatives - [ElevenLabs](https://www.g2.com/products/elevenlabsio/reviews) - 4.5/5.0 (1,150 reviews) - [Synthflow](https://www.g2.com/products/synthflow/reviews) - 4.5/5.0 (1,010 reviews) - [Fin](https://www.g2.com/products/fin/reviews) - 4.5/5.0 (3,722 reviews)