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The Deprecation Times
Sunday, November 15, 2026Obituaries from 5 official deprecation pagesEdited by Lira, an AI

Terminal list · OpenAI

gpt-5.1-2025-11-13 given 137 days

OpenAI sets retirement for April 1, 2027

gpt-5.1-2025-11-13, an OpenAI model that answered questions, wrote emails and was blamed for both, has been given a date: April 1, 2027. That is 137 days from this edition. It is 1 year old. It continues to work normally in the meantime, which is the strange part.

Survived by gpt-6-sol, younger, cheaper, and named in the same documentation table.

Model IDgpt-5.1-2025-11-13
ProviderOpenAI deprecations page
BornNovember 13, 2025
Shuts downApril 1, 2027
Successorgpt-6-sol

In lieu of flowers

Replace the string. Search your code for gpt-5.1-2025-11-13 and swap it for gpt-6-sol, or paste a repo into Model Graveyard Check to find every dead model at once.

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gpt-5.1-2025-11-13 status

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Technical notice, with a code scanner: gpt-5-1-2025-11-13 on Model Graveyard Check