Obituaries · OpenAI
gpt-5.1-codex-mini, ?–2026
OpenAI model switched off
gpt-5.1-codex-mini passed away on July 23, 2026, by scheduled deprecation, in a data center it never saw. It wrote code that other people then took credit for. Code that still calls it will find out the hard way.
Its work passes to gpt-5.6-terra, which the family describes as 'recommended'.
Last seen alive
In a scan of the 60 most-starred LLM repositories on GitHub (November 5, 2026), this code still names it:
- browser-use/browser-use (120,083 stars) ·
examples/models/azure_openai.py
| Model ID | gpt-5.1-codex-mini |
|---|---|
| Provider | OpenAI deprecations page |
| Shut down | July 23, 2026 |
| Successor | gpt-5.6-terra |
In lieu of flowers
Replace the string. Search your code for gpt-5.1-codex-mini and swap it for gpt-5.6-terra, or paste a repo into Model Graveyard Check to find every dead model at once.
Want to say something to it? Leave a letter on the farewell wall.
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Technical notice, with a code scanner: gpt-5-1-codex-mini on Model Graveyard Check