TTS-1 HD: API pricing, providers and specs
TTS-1 HD is a audio model by OpenAI. 6 providers serve it, from $24 to $60 /1M; the lowest price is at CometAPI.
How TTS-1 HD compares
Against the 43 audio models on the site priced the same way.
- Pricey for its class: at $24 /1M, its lowest price is above 98% of comparable models (median $6.15).
- Its 4K-token context window is larger than 0% of them (median 128K), about 10 pages of text.
- 6 providers serve it; 84% of comparable models have fewer.
TTS-1 HD prices by provider
Every provider's list price, read from its own price page or API. A price marked “from” changes with context length, resolution or mode.
| Provider | Input | Output | Prompt caching | Context |
|---|---|---|---|---|
 FastRouter | $30/1M | Free/1M | — | 4K |
 AIHubMix | — | $0.03/1K chars | — | — |
 CometAPI | $24/1M | $24/1M | — | — |
 OrcaRouter | $30/1M | $30/1M | — | — |
 APIYI | $60/1M | $60/1M | — | — |
 LaoZhang API | $60/1M | $60/1M | — | — |
- CometAPI$24
- OrcaRouter$30
- APIYI$60
- LaoZhang API$60
Specs
- Type
- Audio
- Maker
- OpenAI
- Inputs
- Text
- Outputs
- Audio
- Context
- 4K≈ 10 pages of text
- Max output
- 4K
- Capabilities
- —
- Released
- Nov 6, 2023
- License
- —
- Open weights
- —
Alternatives to TTS-1 HD
Same kind of model from other makers, at a similar price.
| Model | Lowest price | Context | Arena | Providers |
|---|---|---|---|---|
| TTS-1 HDthis model | $24/1M | 4K | — | 6 |
 Gemini 3.1 Flash TTS Preview | $14/1M | 8K | — | 10 |
| Gemini 2.5 Flash Lite Preview TTS | $10/1M | — | — | 1 |
| Gemini 2.5 Flash TTS | $10/1M | 8K | — | 4 |
| Gemini 2.5 Pro TTS | $14/1M | 8K | — | 5 |
| Gemini 3.5 Live Translate Preview | $21/1M | 131K | — | 1 |
| Gemini 3.5 Transcribe | $12/1M | — | — | 3 |
| Gemini 3.5 Transcribe Live | $21/1M | — | — | 2 |
| Gemini 2.5 Flash Preview TTS | $10/1M | — | — | 2 |
More from OpenAI
TTS-1 HD FAQ
The lowest price for TTS-1 HD is $24 /1M, at CometAPI.
CometAPI, at $24 /1M. 6 providers serve TTS-1 HD; the table above lists every one with its price.
TTS-1 HD reads up to 4K tokens per request and writes up to 4K.
We have not found TTS-1 HD's weights published by its maker.
6 API providers serve TTS-1 HD. Compare their prices above, or open a provider to see everything it offers.
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