tts-1-hd (deprecated)
OpenAI will remove the tts-1-hd speech model from its API on January 6, 2027, per its October 2026 notice.
- Lab
- OpenAI
- Release date
- Status
- Deprecated
- API model ID
- tts-1-hd
- Shutdown date
tts-1-hd sits on OpenAI’s list of text-to-speech models deprecated on October 1, 2026, a group OpenAI said would be removed with at least three months’ notice. Developers still sending requests to tts-1-hd have until January 6, 2027 to move them; the suggested target is gpt-realtime-2.1-mini.
Its sibling tts-1 runs on that schedule too, with the same recommended successor.
- Availability
- OpenAI API until shutdown. Recommended replacement: gpt-realtime-2.1-mini.
- Official source
- developers.openai.com
- Last checked
Questions
What is the shutdown date for tts-1-hd?
January 6, 2027.
Where should tts-1-hd requests go instead?
To
gpt-realtime-2.1-mini, the replacement OpenAI recommends.Is tts-1-hd deprecated together with tts-1?
Yes. Both appear in OpenAI’s October 1, 2026 text-to-speech entry.
Source
Release dates, model IDs and limits come from each lab’s own announcement, changelog, documentation or deprecations page, linked on every model with the date it was last checked. How we pick and check sources: editorial standards.