Time to Bail · Boarding pass
Act. You can stay.
These audio models end December 15, 2026. Microsoft has not named a model to use next.[1]
Act means: change a setting or plan before the date. You can stay.
Azure OpenAI tts, tts-hd and whisper retire December 15, 2026
Microsoft retires the tts, tts-hd and whisper models, version 001, in Azure OpenAI on December 15, 2026. Its list does not name a model to use next.
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Check each Azure OpenAI deployment of tts, tts-hd and whisper.
gpt-4o-mini-tts and gpt-4o-mini-transcribe version 2025-12-15 run to June 15, 2027.
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| Retirement date | December 15, 2026[1] |
|---|---|
| Models and versions | tts 001 (Preview), tts-hd 001 (GA), whisper 001 (GA)[1] |
| Replacement | None listed yet[1] |
| Audio models with later dates | gpt-4o-mini-tts and gpt-4o-mini-transcribe version 2025-12-15: June 15, 2027[1] |
| On the OpenAI API itself | tts-1 and tts-1-hd end January 6, 2027; whisper-1 ends February 26, 2027[3] |
| After retirement | All inference requests return 410 Gone[2] |
| Can you get more time? | No. Microsoft says retirement dates are not extendable[2] |
| Deployments of these models | Stop answering on December 15, 2026[1] |
Requests to retired deployments of tts, tts-hd and whisper fail. Microsoft says inference returns an error.
410 GonelifecycleStatus and deprecation.inference.Source: [1] Model retirement schedule (Microsoft) · [2] Microsoft Foundry Models lifecycle and support policy (Microsoft)
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Time to bail on Azure OpenAI tts, tts-hd and whisper deployments? Act. You can stay. These audio models end December 15, 2026. Microsoft has not named a model to use next.
On our scale this is Act: change a setting or plan before the date. You can stay.
Microsoft retires the tts, tts-hd and whisper models, version 001, in Azure OpenAI on December 15, 2026. Its list does not name a model to use next.
Here are the facts we checked:
You can stay on Azure OpenAI in Foundry Models. You have to change a setting or plan before the date.
Leaving is a choice here, not a must.
Microsoft is the main source for this page. Azure OpenAI in Foundry Models has not said more than what is listed here. If a fact is not on this page, we do not know it yet.
Deployments of these models: Stop answering on December 15, 2026.
The date to remember is December 15, 2026. Make the change before then.
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People on Azure OpenAI tts, tts-hd and whisper deployments can stay if they make the change. Some would rather leave. Get the playbook for this change, and list your product here.
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