gpt-4.1-nano — Deprecated — shutdown October 23, 2026
For gpt-4.1-nano, provider is OpenAI; lifecycle status is Deprecated; deprecation announced is 2026-04-22; shutdown / retirement date is October 23, 2026; recommended replacement is gpt-5.6-luna, recorded from its source on 2026-08-28.
- Provider
- OpenAI our reading
- Model ID / API name
- gpt-4.1-nano verified
- Lifecycle status
- Deprecated
- Deprecation announced
- 2026-04-22 verified
- Shutdown / retirement date
- October 23, 2026 verified
- Recommended replacement
- gpt-5.6-luna verified
- Human-readable model name
- gpt-4.1-nano 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
| October 23, 2026 | `gpt-4.1-nano` \| `gpt-4.1-nano-2025-04-14` | `gpt-5.6-luna` |
— 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
2026-04-22: Legacy GPT model snapshots
— 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.
| October 23, 2026 | `gpt-4.1-nano` \| `gpt-4.1-nano-2025-04-14` | `gpt-5.6-luna` |
https://developers.openai.com/api/docs/deprecations.md
raw.githubusercontent.com says provider is Microsoft Azure / Foundry, as of 2026-08-28.
| gpt-4.1-nano | 2025-04-14 | Legacy | 2027-04-14 | — |
Lifecycle status
developers.openai.com says lifecycle status is Deprecated, as of 2026-08-28.
| October 23, 2026 | `gpt-4.1-nano` \| `gpt-4.1-nano-2025-04-14` | `gpt-5.6-luna` |
https://developers.openai.com/api/docs/deprecations.md
raw.githubusercontent.com says lifecycle status is Legacy, as of 2026-08-28.
| gpt-4.1-nano | 2025-04-14 | Legacy | 2027-04-14 | — |
Shutdown / retirement date
developers.openai.com says shutdown / retirement date is October 23, 2026, as of 2026-08-28.
| October 23, 2026 | `gpt-4.1-nano` \| `gpt-4.1-nano-2025-04-14` | `gpt-5.6-luna` |
https://developers.openai.com/api/docs/deprecations.md
raw.githubusercontent.com says shutdown / retirement date is 2027-04-14, as of 2026-08-28.
| gpt-4.1-nano | 2025-04-14 | Legacy | 2027-04-14 | — |
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