# TTS-1 HD

> OpenAI high-quality text-to-speech model with more natural audio.

Agent resources: the index of everything machine-readable is https://www.ohmygpt.com/llms.txt; the integration skill (endpoints, auth, SDK and coding-tool setup) is https://www.ohmygpt.com/skill.md.

- Model ID: `openai/tts-1-hd`
- Status: stops working on 2027-01-06, use openai/gpt-realtime-2.1-mini instead
- Live status and providers as JSON, no key needed: https://api.ohmygpt.com/v1/models/openai/tts-1-hd
- Released: 2023-11-06
- Context: 4K tokens
- Input: text; output: audio

## Prices (USD)

| Item | Price | Unit |
| --- | --- | --- |
| Speech | $27.00 | per 1M characters |

## Providers

This model chooses its provider itself; a provider prefix is not accepted.

| Provider | Pinned model ID | Location | Input | Output | Trains on your data |
| --- | --- | --- | --- | --- | --- |
| OpenAI | — | United States | — | — | no |

Web page: https://www.ohmygpt.com/models/openai/tts-1-hd