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Retell AI
What ChatGPT, Claude, Gemini & Grok actually say · July 2026
The verdict
Retell AI appears in 1 AI-ranked category — best position #2 for voice agent platform.
GPT #3Claude #3Gemini #1
Exceptional out-of-the-box low latency, advanced natural conversational flow handling with graceful turn-taking, and seamless production-ready telephony integrations.
What would move Retell AI up
- GPT Broaden model/provider flexibility and enterprise customization so teams can avoid platform lock-in
- Claude More flexibility and depth for custom/complex agent logic — power users hit the ceiling of its opinionated framework sooner than on Vapi or LiveKit
- Gemini Provide a fully self-hostable open-source deployment option to satisfy strict enterprise data compliance and lock-in requirements.
Top alternatives per the models: Vapi · ElevenLabs Agents · Bland AI · LiveKit Agents
Rankings are computed from what the models answer, re-polled continuously · raw reasoning shown verbatim · methodology