Retell AI - Voice AI Agent

Hire your AI call center

★★★★★ 4.8/5 from 9 reviews

What is Retell AI - Voice AI Agent?

Retell AI is a YC-backed AI call center platform that enables businesses to build, deploy, and manage AI-powered phone agents for sales, support, and appointment scheduling. With advanced conversational AI, integrations, and automation tools, Retell AI helps companies streamline customer interactions and scale voice operations efficiently.

Pros & Cons

Pros

  • Lifelike voices
  • Reliable platform
  • Streamlined communication
  • Real-time performance
  • Flexible integration
  • Easy deployment
  • Effective for sales and support
  • Saves engineering time
  • Scalable pricing
  • Api available
  • Clear documentation
  • Customizability
  • Excellent support

Cons

  • Unclear mid-tier pricing
  • Unusable in the UK

Tool Details

Categories LLMs, AI Chatbots, AI Voice Agents
Website www.retellai.com
Became Popular February 8, 2024
Platforms Web
Social

Recent Reviews (8)

E
Emanuel Apr 2, 2025
★★★★★

I’ve been using Retell AI for a while now, and I can confidently say it’s one of the most game-changing platforms I’ve worked with. In a world where voice AI is rapidly evolving, Retell stands out not just for its cutting-edge capabilities but also for how easy it makes deploying voice agents that sound natural, fluid, and human. From the moment I onboarded, the experience has been incredibly smooth. The documentation is clear, the setup process is intuitive, and within no time, I was building voice experiences that would’ve taken weeks (or even months) using traditional telephony stacks or cobbling together other APIs. One of the things I admire most about Retell AI is its true real-time performance — there’s practically no lag, the agents interrupt like real humans, and the voices are incredibly lifelike. This kind of responsiveness is crucial when you’re trying to create a seamless customer experience or automate real conversations. Other platforms claim to be real-time, but Retell actually delivers on that promise. And then there's the customizability. Whether it’s agent scripting, webhook logic, or integrating into your own backend systems, Retell gives you the flexibility to fine-tune every aspect of the conversation flow. It doesn’t box you into one way of doing things — it empowers you to build exactly what you need. The pricing is also fair and scales well with usage, which is perfect whether you’re testing an MVP or scaling to handle production traffic. On top of that, the support team is phenomenal. Every time I’ve reached out — whether it was a quick question or a technical deep dive — I’ve received thoughtful, prompt, and helpful responses. It’s clear the team truly cares about its users and is deeply invested in building a world-class product. If you're even remotely considering building a voice product — whether it's a customer service agent, a sales dialer, or something more creative — I highly recommend giving Retell AI a try. It's fast, reliable, powerful, and built by a team that clearly understands the future of voice. This is the kind of tool that doesn't just help you build — it helps you innovate.

Customizability Excellent support Easy deployment Clear documentation Flexible integration Scalable pricing Real-time performance Lifelike voices
P
Peer Sep 14, 2025
★★★★★

Retell powers our AI model and is a fantastic partner to work with

B
Brendan Aug 12, 2025
★★★★★

One of the best platforms for developing AI Voice Agents!

W
William Dec 1, 2025
★★★★☆

We chose Retell AI because it’s incredibly easy to set up, and gives us far better reliability than the tools we used before. From the first tests, it matched exactly what we needed for interviewing.

We recently started using Retell AI after struggling with poor support from another AI Agent tool, and the difference has been incredible. It’s easy to set up, intuitive to use, and it has already exceeded our expectations in the first tests. Really excited to keep moving forward with it!
P
Parth Sep 19, 2025
★★★★★

We started out using Vapi for outbound lead qualification. It worked okay for small call volumes, but as soon as we scaled past 2,000 calls a month, the cracks showed latency, inconsistent tone, and frequent errors. Moving to Retell AI was the best decision we’ve made in customer engagement. The voice agents sound so natural that customers often ask which rep they spoke to, not realizing it was AI. Onboarding was smooth, integrations were ready-made, and the reporting dashboard gave us real visibility into agent performance. Retell just feels like it was built for production scale, while competitors felt like prototypes.

Reliable platform Easy deployment Flexible integration Streamlined communication Lifelike voices
Y
you Sep 18, 2025
★★★★★

I rarely take the time to write reviews, but Retell AI truly deserves recognition. It has become an indispensable part of our business, almost like adding a dedicated team of highly skilled agents who never sleep, never burn out, and always perform at the highest standard. The technology adapts seamlessly to different customer needs and scenarios, which means we don’t have to worry about missed opportunities or inconsistent service. Retell AI gives us confidence and peace of mind, which is invaluable.

P
Peter Sep 14, 2025
★★★★☆

Great UX and UI. The app looks solid and fundtional. Pricing model is not that great. There is the free option with cost per minute and the entreprice pricing is custom which doesnt really serve good for a mid size usage.

Reliable platform Unclear mid-tier pricing

Frequently Asked Questions about Retell AI - Voice AI Agent

When did Retell AI - Voice AI Agent become popular?

Retell AI - Voice AI Agent became popular around February 8, 2024.

What are the main advantages of using Retell AI - Voice AI Agent?

The top advantages of Retell AI - Voice AI Agent include: lifelike voices, reliable platform, streamlined communication, real-time performance, flexible integration.

What are the disadvantages of Retell AI - Voice AI Agent?

Some reported disadvantages of Retell AI - Voice AI Agent include: unclear mid-tier pricing, unusable in the UK.

What is Retell AI - Voice AI Agent's overall user rating?

Retell AI - Voice AI Agent has an overall rating of 4.8/5 based on 9 user reviews.

What type of tool is Retell AI - Voice AI Agent?

Retell AI - Voice AI Agent belongs to the following categories: LLMs, AI Chatbots, AI Voice Agents.

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