Compare

Async Text to Speech Pro V1.0 — and what?

Pricing per million tokens, context window, capabilities — pulled from each provider's public docs. All 1 are available via the same AIgateway OpenAI-compatible endpoint; flip the model string to switch.

Search1/4
AT
Provider
Async
Family
Modality
audio-tts
Context window
Max output
Released
License
Open-weight
Per 1K chars
$0.010 /1K ch
Tools
Streaming
Vision
JSON mode
Reasoning
Prompt caching
Batch API
Try it
View model →
Async Text to Speech Pro V1.0
async/tts-pro/v1.0
Full spec →

Generate professional-quality voiceovers in seconds with Async TTS Pro model text-based control over pauses, emphasis, and timing. Voice ids can be found at https://async.com/developer/voice-library

Strengths
  • Natural speech synthesis
Use cases
VoiceoversAudiobooks