OpenAI TTS
₩5 / short
OpenAI TTS Voice synthesis
Commercial use allowed
Estimated cost per 15s short · 15s short · 30/month · 3 tries · monthly billing
Reference model: gpt-4o-mini-tts · Checked 2026-10-19 · Source
OpenAI TTS provides speech generation.
Best for
- Speech generation through an API
Limits to check
- Check commercial use terms and usage limits.
Frequently asked questions
- What should I check before using it?
- Review the official pricing and terms.
Terms & localization
| Commercial use | Commercial use allowed |
|---|---|
| Benchmark clause | — |
| Korean UI | — |
| Japanese UI | — |
| Language notes | API only |
| In-house runs | 0 publishable in-house test videos |
| Scorecard | No complete scorecard (total withheld) |
| Checked · source | Checked 2026-10-19 · Source |
Plans
—
Credit unit costs
| Model | Length | Resolution | Credits | USD equivalent | Failure billing | Basis plan | Checked · source |
|---|---|---|---|---|---|---|---|
| gpt-4o-mini-tts | 15 s | — | — | — | — | Rate basis described at source URL. | Checked 2026-10-19 · Source |
| gpt-realtime-2.1-mini (TTS replacement listed) | 15 s | — | — | — | — | Rate basis described at source URL. | Checked 2026-10-19 · Source |
| tts-1 | 15 s | — | — | $0.0038 | — | Rate basis described at source URL. | Checked 2026-10-19 · Source |
| tts-1-hd | 15 s | — | — | $0.0075 | — | Rate basis described at source URL. | Checked 2026-10-19 · Source |
1:1 comparisons
Product site: https://platform.openai.com/docs/guides/text-to-speech
Source types and formulas are explained on the methodology page →