This model is not part of the weekly automatic sync. The figures below were confirmed on 2026-08-13.
Low-latency real-time speech synthesis. 6 voices (alloy, echo, fable, onyx, nova, shimmer)
TTS-1 — OpenAI. Context window 128,000 tokens. API pricing (per 1M tokens): Input $15, Output $0. License: Proprietary.
| Provider | OpenAI |
|---|---|
| Tier | Micro |
| Context window | 128,000 tokens |
| Max output | 4,096 tokens |
| License | Proprietary |
| API pricing (per 1M tokens) · Input | $15 |
| API pricing (per 1M tokens) · Output | $0 |