Platform for creating AI phone agents. Discover the new way to build, test, deploy, and monitor production-ready AI voice agents at scale.
Written by the business, not verified by us.Retell AI (retellai.com) has a 4.9 out of 5 rating on OK.one, based on 103 user reviews collected here. It is listed under Electronics & Technology and its reputation is excellent. Praise is nearly unanimous, with 97% rating it 4 stars or higher; The business has not yet replied to negative reviews; Reviews mostly discuss User experience, Product. Last updated 2026-08-12.
Reviewers overwhelmingly had a great experience with this company, highlighting its remarkable value for building automation tools. Customers frequently praise the highly intuitive user interface and incredibly natural-sounding AI voice agents that make building and deploying solutions completely seamless. Consumers highlight that the platform consistently saves valuable time, simplifies complex workflows, and provides strong reliability for daily business operations. Though some reviewers noted a learning curve, mentioning that the system is not entirely beginner-friendly and requires some initial figuring out. People also pointed out that achieving the best possible results involves careful prompt adjustments, thorough knowledge base tuning, and proper configuration.
Auto-generated from all reviews of this business. For reference only.I have an issue with retell Ai batch calling not making outbound calls but no one here to help. I have very bad exprience with this AI. no Support no one here to help after making paytimg.testing work fine. but when we pay nothing work. Totally a scam
This software is so good i have been using it for my latest project and couldn't recommend them any more. So easy to use and the product comes out so good i am so pleased with it and cannot wait to continue using them.
Been using the product for over a year, really love it! Lots of new features coming and also issues are fixed really fast!
I have been using Retail AI for our business, and overall, the platform provides a very good service. It is a highly advanced piece of software specifically designed for handling retail calls, and it truly shows in its capabilities. The system is incredibly sophisticated and robust. One of the standout features is how excellently everything is measured and tracked. The analytics and data provided give us deep insights into our call operations, allowing us to optimize our retail processes effectively. It feels like a truly next-generation tool for automating and managing voice interactions with customers. However, to provide a completely honest review, there is one technical area that needs improvement: the latency is a bit high during conversations. Specifically, when using the Gemini 3 Flash model, we have noticed that the response time can sometimes delay between 1.5 and 2.5 seconds. In a live call environment, this slight pause can occasionally disrupt the natural flow of the conversation. Despite this latency issue, the core technology is incredibly powerful. If they can optimize the response times, it would be absolutely perfect. Even as it stands, Retail AI is a fantastic, highly advanced solution that I strongly recommend for any retail business looking to upgrade their call systems.
The customer support was rather slow… the latency of the model didnt support fast paced conversations.
I've been trying to make outbound calls to Turkey (+90) for days and every single call fails immediately with the following error: "SIP status code 403 — telephony_provider_permission_denied: Dialed number (associated countries: TUR) is not included in whitelisted countries USA, CAN D13" The D13 error indicates a country-level block that cannot be changed from the dashboard. There is no documentation warning you about this before you spend time and money setting up your entire telephony stack. I purchased a dedicated external Telnyx number specifically to call Turkish numbers, configured everything correctly on both ends, and still hit this invisible wall. No clear support channel, no timeline for resolution, no transparency about which countries are restricted and why. Just a cryptic error and silence. What a waste of time and effort. Pathetic
I like that they update the platform regularly and each update actually makes things easier and more flexible to use. The agents setup is straightforward, the API is well-designed and it’s great for testing real world use cases without too much friction. Overall, it’s a solid platform with strong potential that keeps getting better over time.
I build a lot of ai voice agents for busineses and I found that it works well for all of them. For example if you use to build the inbound voice agent for receptionist it save your money, time and works better than human receptionist.
The fact that Retell has laid out options which I, as a normal user can't even think about... Is pretty DAMN amazing and shows their research in the field is top notch. Would all the newbies to check out the "Conversational Flow" Agents to build a solid AI Voice Agent that just doesn't talk, rather handles the call pretty well. Well done Team Retell 👏
it works really good for production grade systems
Very cheap and a good control over everything
Great website, easy to use and is very user friendly for beginners. I suggest using this websites for building your own voice agents
The service is relatively easy to use, and does exactly what it promises. Very happy.
I love all the features you have.. I love that latency and the fact u have the lowest latency. Easy to setup but it gives me the control for most of the things
so cool okls
super easy to use, detailed docs and very simple node style call flow editing. A++!
It is teh only platform taht really support hebrew. Great stuff!
very easy to use, highly customizable and efficient
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