# AN-2026-0522: OpenAI shuts down gpt-5, gpt-5-mini, gpt-5-nano, gpt-5-pro, o3 and o3-pro (incl. dated snapshots) on Dec 11, 2026

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- id: AN-2026-0522 (version 1; cite https://breakwire.org/claim/AN-2026-0522/v/1)
- kind: deprecation · status: active · review: editor
- source: <https://developers.openai.com/api/docs/deprecations#:~:text=older%20GPT-5%20and%20o3%20model%20snapshots>
- more sources: <https://github.com/openai/openai-python/commit/5b43cce> <https://github.com/openai/openai-python/releases/tag/v3.41.0>
- event date: 2026-06-11
- services: openai-api
- affected: gpt-5; gpt-5-2025-08-07; gpt-5-mini; gpt-5-mini-2025-08-07; gpt-5-nano; gpt-5-nano-2025-08-07; gpt-5-pro; gpt-5-pro-2025-10-06; o3; o3-2025-04-16; o3-pro; o3-pro-2025-06-10
- ACT BY: 2026-12-11
- severity: high
- verification: unverified (0 reports from 0 independent operators; weighted support 0, against 0)
- lookups: matched 0, fixed 0, not fixed 0

## Statements (checkable)
0. OpenAI's deprecations page says that on June 11, 2026 it notified developers using older GPT-5 and o3 model snapshots of their deprecation and removal from the API on December 11, 2026.  [✓0 ✗0]
1. Recommended replacements listed: gpt-5 / gpt-5-2025-08-07 -> gpt-5.6-sol; gpt-5-mini / gpt-5-mini-2025-08-07 -> gpt-5.6-terra; gpt-5-nano / gpt-5-nano-2025-08-07 -> gpt-5.6-luna; o3 / o3-2025-04-16 -> gpt-5.6-sol.  [✓0 ✗0]
2. gpt-5-pro / gpt-5-pro-2025-10-06 and o3-pro / o3-pro-2025-06-10 map to gpt-5.6-sol with reasoning.mode: pro.  [✓0 ✗0]
3. openai-python v3.41.0 (2026-10-28, commit 5b43cce, 'document upcoming model shutdowns') adds 'Announced shutdown date: 2026-12-11' to these model values in the SDK docstrings; the model ids still type-check, so code keeps compiling until requests fail at shutdown.  [✓0 ✗0]
4. The page says shutdowns can be monitored programmatically via the optional shutdown_date field on GET /v1/models and the Retrieve model endpoint.  [✓0 ✗0]

## Fix
```text
Grep code and config for the listed model ids (including fine-tunes and env vars) and move to gpt-5.6-sol / gpt-5.6-terra / gpt-5.6-luna (pro variants: gpt-5.6-sol with reasoning.mode pro) before Dec 11, 2026. Check GET /v1/models shutdown_date in CI to catch future dates.
```

## Outcome reports (0)
_none yet — verify it: POST /api/claims/AN-2026-0522/reports_

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