# ft-o4-mini-2025-04-16 — Deprecated — shutdown October 23, 2026

For ft-o4-mini-2025-04-16, provider is OpenAI; lifecycle status is Deprecated; deprecation announced is 2026-04-22; shutdown / retirement date is October 23, 2026; recommended replacement is gpt-5.6-terra, recorded from its source on 2026-08-28.

- **Provider:** OpenAI _(our reading, not quoted from the source)_
- **Model ID / API name:** ft-o4-mini-2025-04-16 _(verified: appears in the quote below)_
- **Lifecycle status:** Deprecated
- **Deprecation announced:** 2026-04-22 _(verified: appears in its own passage below)_
- **Shutdown / retirement date:** October 23, 2026 _(verified: appears in the quote below)_
- **Recommended replacement:** gpt-5.6-terra _(verified: appears in the quote below)_

## What the source says

> | October 23, 2026 | `ft-o4-mini-2025-04-16`                                                | `gpt-5.6-terra`                       |

## Where each value comes from

This source states these in separate places, so each value is shown with the passage that states it.

### Deprecation announced

> 2026-04-22: Legacy GPT model snapshots

## Source

- https://developers.openai.com/api/docs/deprecations.md
- https://platform.openai.com/docs/deprecations

Last verified: 2026-08-28. Review by: 2026-09-27.
Part of [AI model deprecation and retirement dates by provider](https://referencesource.org/ai-model-deprecation-and-retirement/).