OpenRouter for Audio

One endpoint for every TTS, STT, and realtime voice model. Route by latency, provider, cost, or capability.

LIVE

p50 87ms

p95 214ms

modelcartesia/sonic-3.5

64 model routes • 15 providers

How it works

One Request. All Models.

One endpoint for every model. Allmodels normalizes provider schemas allowing you to use the latest frontier models with no need to integrate new APIs.

64model routes

15providers

<30msrouter latency

REQ

Voice portability

Keep the voice. Switch the model.

Your users know the voice they hear every day. Bring that voice to another provider when you need lower latency, better quality, or a different model family.

Send us a source provider and voice, choose a destination provider, and Allmodels returns a portable voice slug like elevenlabs/edward that can be used on compatible routes such as cartesia/sonic.

Read the docs Find voice models

POST /v1/voices/port
{
  "source": {
    "provider": "elevenlabs",
    "voice": "edward"
  },
  "destination": {
    "provider": "cartesia"
  }
}

{
  "voice": "elevenlabs/edward",
  "provider": "cartesia",
  "status": "ready"
}