Realtime voice agents, compared.
What a full speech-to-speech agent actually costs per minute - PyAI Omni next to token-priced realtime APIs, agent platforms, and the do-it-yourself stack. One flat rate, no token math.
All-in price per minute (USD)
Lower is better. PyAI in teal.
PyAI from our rate card. Competitor figures are each provider’s public pricing as of June 2026; realtime pricing is composite (model + voice + platform) and varies by configuration - verify before relying on it.
Why teams pick Omni
- $0.05/min all-in - STT, reasoning, retrieval, and TTS in one bill
- ~431 ms median turn-taking, with barge-in
- One WebSocket - no stitching, no cross-vendor hops
- Grounded in your knowledge base, calls your tools
- OpenAI-realtime-compatible alias to drop in
The numbers
| Provider | Price / min | Notes | Source |
|---|---|---|---|
| PyAI OmniPyAI | $0.05 | All-in, billed per second | PyAI rate card |
| Retell AI | $0.07 | Bundled voice-agent platform | retellai.com |
| Bland AI | $0.09 | - | bland.ai |
| Vapi | $0.10 | ~$0.05 platform + model/voice passthrough | vapi.ai |
| DIY stack (STT+LLM+TTS) | $0.12 | e.g. Deepgram + GPT-4o + ElevenLabs, typical | Sum of parts |
| OpenAI Realtime (gpt-4o) | $0.30 | Audio in+out blended; gpt-4o-mini-realtime is lower | openai.com/pricing |
Methodology: all-in cost per minute of conversation. PyAI Omni is a single $0.05/min rate with everything included. Token-priced and platform-based options vary with model choice, voice, and usage - figures are public estimates as of June 2026; confirm with each provider.
See Omni run a call, end to end
Acme Dental’s front-desk agent - every step powered by PyAI.
Hear <-> Speak repeats every turn, with barge-in - then the call becomes data.
Each step is a PyAI model. Press play to watch them hand off - or tap any stage to jump.
- Hear
pyai-hear-telephony - Listening layer
internal - Omni brain
pyai-omni-realtime - Speak
pyai-voice
Transcript, summary, intent, and disposition - emitted as JSON when the call ends.
One model. One hop. $0.05/min.
Start free with $50 in free credits - no card. Bring a phone number and ship a voice agent today.
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