OpenAI deprecates gpt-4o-mini-tts (2025-12-15) and gpt-4o-mini-tts (2025-03-20)
gpt-4o-mini-tts (2025-12-15) and gpt-4o-mini-tts (2025-03-20) are now deprecated and shut down on 2027-01-06.
Models: gpt-4o-mini-tts (2025-12-15), gpt-4o-mini-tts (2025-03-20)
Source: OpenAI API deprecations, checked Oct 2, 2026. Written from a verified change in our dataset.