ModelClock
OpenAI · First-party API · TTS

gpt-4o-mini-tts-2025-03-20

Shutdown scheduledShuts down on Jan 6, 202794 days left

Provider-recommended replacement: gpt-realtime-2.1-mini

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2 notices

Shutdown scheduled94 days left

Shuts down on Jan 6, 2027

OpenAI lists Jan 6, 2027 as the shutdown date. Listed model identifier.

Hosting route
First-party API
Affected scope
Listed model identifier
Replacement
gpt-realtime-2.1-mini
Announced
Oct 1, 2026
First seen by ModelClock
Oct 3, 2026

What the provider published

developers.openai.com ↗

| Jan 6, 2027 | gpt-4o-mini-tts-2025-03-20 | gpt-realtime-2.1-mini |

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Alias changed

Alias changed on Jan 13, 2026

OpenAI documents an alias change: “Jan 13 Update · Model: gpt-4o-mini-tts · Model: gpt-4o-mini-transcribe Updated the gpt-4o-mini-tts and gpt-4o-mini-transcribe slugs to point to the…”

Hosting route
First-party API
Affected scope
Not stated in the notice
Replacement
gpt-4o-mini-transcribe
Announced
Jan 13, 2026
First seen by ModelClock
Oct 3, 2026

What the provider published

developers.openai.com ↗

Jan 13

Update · Model: gpt-4o-mini-tts · Model: gpt-4o-mini-transcribe

Updated the gpt-4o-mini-tts and gpt-4o-mini-transcribe slugs to point to the 2025-12-15 snapshots. If you need the previous model snapshots, use gpt-4o-mini-tts-2025-03-20 and gpt-4o-mini-transcribe-2025-03-20. We currently recomend using gpt-4o-mini-transcribe over gpt-4o-transcribe for the best results.

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