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Best voice agent platform

3 models · updated 2026-06-29

The verdict

Vapi leads — 2 of 3 models rank Vapi the top startup.

Not unanimous: Gemini picks Retell AI.

Combined ranking

  1. 1
    Vapi—14 pts
    GPT #1Claude #1Gemini #2· Best developer platform for production voice agents.
  2. 2
    Retell AI—13 pts
    GPT #2Claude #2Gemini #1· Low latency, developer-friendly orchestration with enterprise compliance.
  3. 3
    LiveKit Agents—5 pts
    GPT #3Claude #4Gemini —· Open-source framework with excellent realtime infrastructure.
  4. 4
    Bland AI—4 pts
    GPT —Claude #5Gemini #3· Secure and scalable platform optimized for high-volume outbound campaigns.
  5. 5
    Synthflow—2 pts
    GPT —Claude —Gemini #4· Seamless no-code visual builder tailored for SMBs and agency deployment.
  6. 6
    Pipecat—1 pts
    GPT #5Claude —Gemini —· Flexible open-source pipeline for custom voice agents.
  7. 7
    PolyAI—1 pts
    GPT —Claude —Gemini #5· Tailored enterprise voice assistants with deep contact center integrations.

Not ranked (incumbents): ElevenLabs Agents, OpenAI Realtime API

By model

ChatGPT

  1. 1.Vapi
  2. 2.Retell AI
  3. 3.LiveKit Agents
  4. 4.OpenAI Realtime API
  5. 5.Pipecat

Claude

  1. 1.Vapi
  2. 2.Retell AI
  3. 3.ElevenLabs Agents
  4. 4.LiveKit Agents
  5. 5.Bland AI

Gemini

  1. 1.Retell AI
  2. 2.Vapi
  3. 3.Bland AI
  4. 4.Synthflow
  5. 5.PolyAI

Tracked by ModelsAgree · rank 1 = 5 pts … rank 5 = 1 pt · re-polled continuously