Retell AI
Build, test, and deploy production-ready AI voice agents for phone call automation at scale.
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How the 6.8 was reached
- Quality of output8/10
Scored 95.7% workflow accuracy in an independent benchmark of 414 calls, highest of six platforms; about 600ms latency. Source: dialora.ai
- Ease of use6/10
$10 free credits and a live demo call, but reviewers call it overly complex and a poor fit for non-technical teams. Source: dialora.ai
- Pricing value5/10
Free credits and pay-as-you-go $0.07 to $0.31 per minute; reviewers report billing transparency issues. Source: retellai.com
- API and integration quality8/10
API, SDK, webhooks and CLI documented, with Twilio, Vonage, n8n and HubSpot integrations; reviewers note breaking API changes. Source: docs.retellai.com
- Solves the problem it claims to solve7/10
Delivers call transfer, booking and IVR handling with strong benchmark result; users report slow support and complexity. Source: cloudtalk.io
6.8/10 is the average of the five criterion scores above. The evidence comes from 4 different sources.Scores come from public evidence (the tool's own pages and documentation, and independent reviews); we do not test every tool hands-on. Scored 29 September 2026, on version 1 of our five-criteria scoring method.
Pricing
- Limited free minutes
- Access to core features
- Test agents before deploying
- Per-minute pricing
- All voice agent features
- No monthly commitment
- Volume discounts
- Dedicated support
- SLA guarantees
- Advanced monitoring and QA
For the full list of what each plan includes, and current prices, see retellai.com.
Key Features
- Inbound and outbound AI voice agent creation
- Call transfer and appointment booking workflows
- Batch calling for high-volume outreach
- Post-call analysis and AI quality assurance
- Integrations with Twilio, Vonage, HubSpot, GoHighLevel, and n8n
- Branded caller ID and verified phone numbers
- Knowledge base support for context-aware conversations
Pros & Cons
Pros
- Comprehensive end-to-end platform covering build, deploy, and monitor stages
- Strong integration ecosystem with popular telephony and CRM tools
- Supports complex call flows like IVR navigation and call transfers
- Suitable for multiple industries including healthcare, finance, and logistics
Cons
- Pricing not transparently listed on website — requires contacting sales for business plans
- Can be complex to set up for non-technical users without developer resources
- Competing heavily with established players like Vapi and ElevenLabs Conversational AI
Retell AI is a solid, production-focused AI voice agent platform well-suited for mid-to-large teams automating inbound and outbound phone calls. It offers a robust feature set and good integrations, but pricing opacity and technical setup requirements may deter smaller teams or non-developers.
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Retell AI Comparisons
Head-to-head comparisons featuring Retell AI.
Vapi vs Retell AI vs Deepgram: Voice API Platform Compared
A builder-focused comparison of Vapi, Retell AI, and Deepgram — features, pricing, and which voice AI platform fits your use case.
comparisonBland AI vs Vapi vs Retell AI: Voice Agent Platforms
A builder's comparison of Bland AI, Vapi, and Retell AI across features, pricing, and use cases to help you pick the right voice agent stack.
comparisonRetell AI vs Bland AI vs Synthflow: Voice Agent Showdown
A builder's comparison of Retell AI, Bland AI, and Synthflow — features, pricing, and which voice agent platform fits your use case.
comparisonSynthflow vs Retell AI vs Vapi: Outbound Call Automation
Head-to-head comparison of Synthflow, Retell AI, and Vapi for outbound call automation. Features, pricing, and which one fits your team.
Competitors to Retell AI
Other tools in the Voice category worth comparing.
Vapi
7.0/10Developer platform to build, test, and deploy production-grade voice AI agents at enterprise scale.
ElevenLabs Conversational AI
6.8/10Deploy human-like voice and chat AI agents with low latency in 70+ languages — no IVR menus, no scripts.
Murf
6.6/10AI-powered text-to-speech platform with 200+ realistic voices in 35+ languages for voiceovers and audio content creation.
Bland AI
4.8/10Enterprise voice AI platform for building and deploying human-sounding phone agents on your own infrastructure.
Synthflow
6.2/10Enterprise-ready AI voice agents that automate inbound and outbound phone calls at scale.
Deepgram
7.4/10Unified Speech-to-Text, Text-to-Speech, and Voice Agent APIs built for enterprise scale and real-time accuracy.
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