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OpenAI◐breaks on a date

gpt-5.1 shutdown

GPT-5.3-Codex, GPT-5.1, GPT-5.4-Nano. Shutdown date: 2027-04-01. Replacement: gpt-6-sol.

gpt-5.1 shutdown: from its source to your code

developers.openai.comquote checked
gpt-6-solfrom gpt-5.1
2027-04-01in 146 days
Your code2 things to find
Swapped in code

In its own wordsmatches the page ✓

| Apr 1, 2027 | `gpt-5.1` \| `gpt-5.1-2025-11-13` | `gpt-6-sol` |

developers.openai.com/api/docs/deprecations.mdfrom the provider's own sitechecked 2026-10-27#3fddf4c625

What Teire looks for in your code

model ID "gpt-5.1"
model ID "gpt-5.1-2025-11-13"

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read by a table · openai-2027-04-01-gpt-5-1