# TTS-1 HD

**Current Snapshot:** tts-1-hd

TTS is a model that converts text to natural sounding spoken text. The tts-1-hd
model is optimized for high quality text-to-speech use cases. Use it with the
Speech endpoint in the Audio API.

## Snapshots

## Supported Tools

## Rate Limits

### tts-1-hd

| Tier   | RPM   | TPM | Batch Queue Limit |
| ------ | ----- | --- | ----------------- |
| tier_1 | 500   |     |                   |
| tier_2 | 2500  |     |                   |
| tier_3 | 5000  |     |                   |
| tier_4 | 7500  |     |                   |
| tier_5 | 10000 |     |                   |