AI voice agents · OpenAI Realtime API
OpenAI Realtime API alternatives, according to AI assistants
The AI voice agents that ChatGPT, Claude, Gemini and Perplexity name most, other than OpenAI Realtime API. Ranked by score, with the question each one wins most often.
- 1.Retell AI52
Named in 3 of 3 answers to "What are the best AI voice agent platforms?"
- 2.Vapi44
Named in 3 of 3 answers to "What are the best AI voice agent platforms?"
- 3.Bland27
Named in 3 of 3 answers to "What's the best AI agent for outbound sales calls?"
Named in 3 of 3 answers to "Which voice AI platform sounds the most natural?"
- 5.Synthflow22
Named in 3 of 3 answers to "What's the best no-code tool to build a voice AI agent?"
- 6.PolyAI17
Named in 3 of 3 answers to "What's the best enterprise voice AI platform for contact centres?"
- 7.LiveKit Agents16
Named in 3 of 3 answers to "What's the best open-source voice AI agent framework?"
- 8.Pipecat11
Named in 3 of 3 answers to "What's the best open-source voice AI agent framework?"
- 9.Parloa8
Named in 3 of 3 answers to "What's the best enterprise voice AI platform for contact centres?"
- 10.Slang.ai8
Named in 3 of 3 answers to "What's the best AI voice agent for a restaurant or clinic taking bookings?"
Ranked by how often AI assistants name each product, weighted by position. How the score works · Back to OpenAI Realtime API · Full AI voice agents leaderboard