Lowest price
Either one
Both cost $15.00 / 1M characters.
Grok Text to Speech vs TTS-1: price, context and capabilities
A side-by-side comparison of Grok Text to Speech (xAI) and TTS-1 (OpenAI), from the published prices and specifications.
In short
- Both cost the same at the headline price ($15.00 / 1M characters).
Which should you choose?
Each answer below comes straight from the published prices, specifications and independent benchmark results.
Monthly cost at three volumes
| Volume | Grok Text to Speech | TTS-1 | Difference |
|---|---|---|---|
| 1 million characters | $15.00 | $15.00 | = |
| 10 million characters | $150.00 | $150.00 | = |
| 100 million characters | $1,500 | $1,500 | = |
Standard rates, without caching or batch discounts. Volumes are per month.
Specifications side by side
| Grok Text to Speech | TTS-1 | |
|---|---|---|
| Provider | xAI | OpenAI |
| Category | Text to speech | Text to speech |
| Status | Generally available | Deprecated |
| Headline price | $15.00 / 1M characters | $15.00 / 1M characters |
| Context window | No data | No data |
| Max output | No data | No data |
| Released | No data | November 2023 |
| Knowledge cutoff | No data | No data |
| Licence | Proprietary | Proprietary |
| Capabilities | No data | No data |
| API model id | tts-1 |
Frequently asked questions
Which is cheaper, Grok Text to Speech or TTS-1?
Both cost the same at the headline price ($15.00 / 1M characters).
What is the difference between Grok Text to Speech and TTS-1?
Grok Text to Speech is made by xAI and TTS-1 by OpenAI. Both cost the same at the headline price ($15.00 / 1M characters).