Skip to contentx402 is live on Robinhood Chain: agents can now pay for any model, per call, in USDG →
OmniRail
← All models

ByteDance Seed · Voice model

Seed Audio 1.0

bytedance-seed/seed-audio-1-0
  • Voice
Released Sep 25, 2026

Seed Audio 1.0 is ByteDance Seed's non-streaming audio generation model. It produces speech and other audio from a natural-language text prompt that can describe the desired voice, tone, and sound...

Specifications

Input
text, up to 20,000 characters per call
Output
mp3 (default) or raw pcm
Voice
provider voice ids via `voice`; omitted = the provider's default when it has one
Billing
per character of input text

Use it

POST /api/v1/audio/speech · MCP speak · full reference

curl https://omnirail.org/api/v1/audio/speech \
  -H "Authorization: Bearer $OMNIRAIL_KEY" -H "Content-Type: application/json" \
  -d '{"model":"bytedance-seed/seed-audio-1-0","input":"Hello from OmniRail. Every model, one key.","response_format":"mp3"}' \
  --output hello.mp3