gpt-5.1-codex-mini — Retired — shutdown July 23, 2026
For gpt-5.1-codex-mini, provider is OpenAI; lifecycle status is Retired; deprecation announced is April 22, 2026; shutdown / retirement date is July 23, 2026; recommended replacement is gpt-5.6-terra, recorded from its source on 2026-08-28.
- Provider
- OpenAI our reading
- Model ID / API name
- gpt-5.1-codex-mini verified
- Lifecycle status
- Retired
- Deprecation announced
- April 22, 2026 verified
- Shutdown / retirement date
- July 23, 2026 verified
- Recommended replacement
- gpt-5.6-terra verified
- Human-readable model name
- gpt-5.1-codex-mini per raw.githubusercontent.com
- Platform / deployment scope
- Azure / Microsoft Foundry per raw.githubusercontent.com
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
| July 23, 2026 | `gpt-5.1-codex-mini` | `gpt-5.6-terra` |
— developers.openai.com, retrieved 2026-08-28
Where each value comes from
The value above is stated away from the sentence quoted with the answer, so the passage that states it is shown here too.
Deprecation announced
On April 22, 2026, we announced the deprecation of the following older OpenAI models. Access to these models was shut down on July 23, 2026.
— all from developers.openai.com, retrieved 2026-08-28
Sources disagree
More than one authority states this, and they do not state the same thing. Both are reproduced with the source each came from — deciding between them is yours, not ours.
Provider
developers.openai.com says provider is OpenAI, as of 2026-08-28.
| July 23, 2026 | `gpt-5.1-codex-mini` | `gpt-5.6-terra` |
https://developers.openai.com/api/docs/deprecations.md
raw.githubusercontent.com says provider is Microsoft Azure / Foundry, as of 2026-08-28.
| gpt-5.1-codex-mini | 2025-11-13 | GA | 2027-05-15 | — |
learn.microsoft.com says provider is Databricks, as of 2026-09-15.
OpenAI GPT-5.1 Codex Mini | Pay-per-token: July 16, 2026 | OpenAI GPT-5.4 Codex Mini |
https://learn.microsoft.com/en-us/azure/databricks/machine-learning/retired-models-policy
Lifecycle status
developers.openai.com says lifecycle status is Retired, as of 2026-08-28.
| July 23, 2026 | `gpt-5.1-codex-mini` | `gpt-5.6-terra` |
https://developers.openai.com/api/docs/deprecations.md
raw.githubusercontent.com says lifecycle status is GA, as of 2026-08-28.
| gpt-5.1-codex-mini | 2025-11-13 | GA | 2027-05-15 | — |
learn.microsoft.com says lifecycle status is Retired, as of 2026-09-15.
OpenAI GPT-5.1 Codex Mini | Pay-per-token: July 16, 2026 | OpenAI GPT-5.4 Codex Mini |
https://learn.microsoft.com/en-us/azure/databricks/machine-learning/retired-models-policy
Shutdown / retirement date
developers.openai.com says shutdown / retirement date is July 23, 2026, as of 2026-08-28.
| July 23, 2026 | `gpt-5.1-codex-mini` | `gpt-5.6-terra` |
https://developers.openai.com/api/docs/deprecations.md
raw.githubusercontent.com says shutdown / retirement date is 2027-05-15, as of 2026-08-28.
| gpt-5.1-codex-mini | 2025-11-13 | GA | 2027-05-15 | — |
learn.microsoft.com says shutdown / retirement date is July 16, 2026, as of 2026-09-15.
OpenAI GPT-5.1 Codex Mini | Pay-per-token: July 16, 2026 | OpenAI GPT-5.4 Codex Mini |
https://learn.microsoft.com/en-us/azure/databricks/machine-learning/retired-models-policy
Recommended replacement
developers.openai.com says recommended replacement is gpt-5.6-terra, as of 2026-08-28.
| July 23, 2026 | `gpt-5.1-codex-mini` | `gpt-5.6-terra` |
https://developers.openai.com/api/docs/deprecations.md
learn.microsoft.com says recommended replacement is OpenAI GPT-5.4 Codex Mini, as of 2026-09-15.
OpenAI GPT-5.1 Codex Mini | Pay-per-token: July 16, 2026 | OpenAI GPT-5.4 Codex Mini |
https://learn.microsoft.com/en-us/azure/databricks/machine-learning/retired-models-policy
Sources
- developers.openai.comhttps://developers.openai.com/api/docs/deprecations.md
- platform.openai.comhttps://platform.openai.com/docs/deprecations
- raw.githubusercontent.comhttps://raw.githubusercontent.com/MicrosoftDocs/azure-ai-docs/main/articles/foundry/openai/includes/concepts-model-retirement-schedule-content.md
- learn.microsoft.comhttps://learn.microsoft.com/en-us/azure/databricks/machine-learning/retired-models-policy