Switch from a Twilio DIY voice stack to PyAI
Keep the phone rails if you want. Stop building the AI loop yourself.
Twilio is great telephony infrastructure. PyAI gives you the AI voice layer: Omni for audio in/audio out agents, managed Agents when you want evals and monitoring, Trace for compliance, and optional managed telephony when you do not want another carrier bill.
Why teams move from Twilio
One AI loop
Replace separate STT, LLM, TTS, turn detection, and compliance services with one PyAI agent engine.
Bring your number
Keep Twilio/SIP where it works, or use managed telephony at $0.01/min when you want one vendor.
Calls become data
Trace and Recap turn every call into transcripts, summaries, dispositions, QA, and audit evidence.
Before and after
// Twilio streams media to your server.
// Your server calls STT, then an LLM, then TTS, then streams audio back.
twilioStream.on('media', async (frame) => {
const text = await transcribe(frame);
const reply = await llm(text);
const audio = await synthesize(reply);
twilioStream.send(audio);
});// Bridge telephony audio to one Omni socket.
const ws = new WebSocket(
"wss://api.pyai.com/v1/omni?agent_id=front_desk&format=pcm16&rate=16000",
["pyai-key." + apiKey],
);
// stream call audio up; play agent audio downMigration checklist
Swap the connection
Change the base URL or WebSocket URL, pass a PyAI key, and keep the old client where the API shape is compatible.
Map models, voices, and formats
Use the table below to replace model ids, voice ids, response formats, sample rates, and auth headers without rewriting the product flow.
Replay customer traffic
Run real prompts, recordings, and phone-call samples through both systems. Compare latency, quality, completion rate, and all-in cost.
Launch with guardrails
Start on free credits or test keys, add usage alerts, then enable Trace, Recap, or managed Agents when calls need production review.
If the system you are leaving already uses OpenAI-compatible transcription, speech, or realtime APIs, start with the smallest compatible swap: base URL, key, model, and voice. The real test is whether PyAI improves cost, latency, and caller outcomes on your own traffic.
What maps to what
| Twilio | PyAI |
|---|---|
Twilio Media Streams + STT + LLM + TTS | Omni WebSocket |
Twilio number | Bring your number or PyAI managed telephony |
Custom QA/compliance pipeline | Trace + Recap |
DIY orchestration | Omni Agents managed runtime |
Good to know
- You can keep Twilio as the carrier and use PyAI as the voice AI layer.
- Managed PyAI telephony is $0.01/min when you want PyAI to package the phone side.
- Use Trace and Recap when calls need QA, compliance, summaries, and CRM-ready outputs.
FAQ
Do I have to leave Twilio?
No. PyAI can sit behind your existing telephony. Managed telephony is optional.
What does PyAI replace?
The AI loop: STT, turn-taking, reasoning, retrieval, TTS, compliance scans, and call intelligence.
Keep the rails. Replace the AI stack.
Start free, then run Omni at $0.05/min or managed Agents at $0.08/min.
No credit card - OpenAI-compatible - cancel anytime