OpenAI · model
gpt-5.1-codex-mini deprecation: shutdown date & replacement
Shut down July 23, 2026
- Provider
- OpenAI
- Type
- model
- Announced
- Shutdown
- Replacement
gpt-5.6-terra- Source
- Official OpenAI notice
How to migrate off gpt-5.1-codex-mini
- Find every place that references it:
grep -rn --exclude-dir={node_modules,.git,dist} "gpt-5.1-codex-mini" . - Replace the model ID:
- model: "gpt-5.1-codex-mini" + model: "gpt-5.6-terra" - Re-run your evals or a sample of real prompts — output style, token usage and pricing can change between models.
- Check config outside code too: environment variables, feature flags, prompt-management tools, and fine-tuned model references.
- Deploy before July 23, 2026, and add the CI scanner so it cannot come back.
Also shutting down on July 23, 2026 (OpenAI)
computer-use-preview-2025-03-11gpt-4o-mini-search-preview-2025-03-11gpt-4o-search-preview-2025-03-11gpt-5-chat-latestgpt-5-codexgpt-5.1-chat-latestgpt-5.1-codexgpt-5.1-codex-maxgpt-5.2-codexgpt-audio-mini-2025-10-06gpt-realtime-mini-2025-10-06o3-deep-research-2025-06-26o4-mini-deep-research-2025-06-26
Questions
Is gpt-5.1-codex-mini deprecated?
Yes. OpenAI has deprecated gpt-5.1-codex-mini. It was shut down on July 23, 2026.
When does gpt-5.1-codex-mini shut down?
July 23, 2026, according to OpenAI's official deprecation notice.
What should I use instead of gpt-5.1-codex-mini?
OpenAI recommends gpt-5.6-terra. Switch the model ID and re-test your prompts, since outputs, pricing and limits can differ.
What happens to requests to gpt-5.1-codex-mini after the shutdown?
Requests using the retired model ID fail with an error, so any code still calling it breaks. Update and deploy before the shutdown date.