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Inworld TTS 1.5 Mini — 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.

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Inworld TTS 1.5 Mini
inworld/tts-1.5-mini
Provider
Inworld
Family
Inworld TTS
Modality
audio-tts
Context window
Max output
Released
2026-05-22
License
Proprietary
Per 1K chars
$0.015 /1K ch
Tools
Streaming
Vision
JSON mode
Reasoning
Prompt caching
Batch API
Try it
View model →
Inworld TTS 1.5 Mini
inworld/tts-1.5-mini
Full spec →

Ultra-fast, cost-efficient text-to-speech with approximately 120ms latency and 15-language support.

Strengths
  • Natural speech synthesis
Use cases
VoiceoversIVRAudiobooks