Text-to-speech · OpenAI

Tts 1

Canonical id: tts-1 · /v1/audio/speech

Text in → Audio out

Try it in the playground

Price

$15 / 1M characters

per 1M input characters

+ LLMRouter platform fee: 1% of provider cost (≈ $0.15) — billed as its own line, never blended into the price above.

API

curl https://api.llmrouter.sh/v1/audio/speech \
  -H "Authorization: Bearer llmr_sk_..." \
  -H "Content-Type: application/json" \
  -d '{"model": "tts-1", "input": "Hello from LLMRouter", "voice": "alloy"}' \
  --output speech.mp3