tts-1 pricing
tts-1 from OpenAI costs $15.00 per 1M input tokens and not published per 1M output tokens.
API id tts-1 · OpenAI · source · updated 2026-09-26 · text-to-speech
This is a text-to-speech model. Its pricing is not comparable to chat models, and it is excluded from the site's cheapest-model rankings for that reason.
$15.00
Input / 1M tokens
—
Output / 1M tokens
—
Cached input / 1M
—
Context window
tts-1 specifications
- Provider
- OpenAI
- API id
tts-1- Model type
- text-to-speech
- Context window
- — tokens
- Max output
- not published
- Currency
- USD
- Price source
- First-party
- Last checked
- 2026-09-26
Tags
- audio
What tts-1 costs in practice
| Workload | Input tokens | Output tokens | Estimated cost |
|---|---|---|---|
| Short chat turn | 1,000 | 500 | $0.01 |
| Document summary | 50,000 | 2,000 | $0.75 |
| 1M tokens in, 200K out | 1,000,000 | 200,000 | $15.00 |
Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.
Common questions
- How much does tts-1 cost per 1M tokens?
- tts-1 costs $15.00 per 1M input tokens and not published per 1M output tokens on the standard tier.
- What is tts-1's context window?
- OpenAI does not publish a context window for tts-1 on its pricing page.
- Is there a cheaper OpenAI model than tts-1?
- Yes. omni-moderation-latest is free per 1M input tokens versus $15.00 for tts-1.
- Where does this tts-1 price come from?
- Directly from OpenAI's published pricing page, re-read every day and normalized to USD per 1,000,000 tokens.