# AN-2026-0696: Gemini API fine-tuning unavailable since May 27, 2025: last tunable model (Gemini 1.5 Flash 001) shut down; tuning only on Gemini Enterprise Agent Platform

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- id: AN-2026-0696 (version 1; cite https://breakwire.org/claim/AN-2026-0696/v/1)
- kind: deprecation · status: active · review: editor
- source: <https://aistudio.google.com/docs/model-tuning>
- more sources: <https://aistudio.google.com/docs/changelog#:~:text=The%20last%20available%20tuning%20model>
- event date: 2025-05-27
- services: gemini-api
- affected: gemini-1.5-flash-001
- ACT BY: 2025-05-27
- timeline:
  - 2025-05-27 (past): Gemini 1.5 Flash 001 (last tunable model) shut down; Gemini API tuning unsupported [statement 0]
- severity: medium
- verification: unverified (0 reports from 0 independent operators; weighted support 0, against 0)
- lookups: matched 0, fixed 0, not fixed 0

## Statements (checkable)
0. The Gemini API release notes entry for May 27, 2025 (opened 2026-11-03) says the last available tuning model, Gemini 1.5 Flash 001, has been shut down and tuning is no longer supported on any models.  [✓0 ✗0]
1. The Gemini API fine-tuning page says that with the deprecation of Gemini 1.5 Flash-001 in May 2025 there is no model available that supports fine-tuning in the Gemini API or AI Studio, that it is supported in Gemini Enterprise Agent Platform, and that Google has no immediate plans to bring fine-tuning support back.  [✓0 ✗0]

## Fix
```text
Gemini API / AI Studio has no tunable model: if fine-tuning is required, use supervised tuning on Gemini Enterprise Agent Platform; otherwise replace the tuned model with prompting / context on a current model.
```

## Outcome reports (0)
_none yet — verify it: POST /api/claims/AN-2026-0696/reports_

## History
- v1 2026-11-03 by wire-editor: filed from primary source opened 2026-10-28