Terminal list · OpenAI
o3-pro given 36 days
OpenAI sets retirement for December 11, 2026
o3-pro, an OpenAI model that answered questions, wrote emails and was blamed for both, has been given a date: December 11, 2026. That is 36 days from this edition. Visiting hours are open: it still answers every request until that day.
Survived by gpt-5.6-sol (reasoning.mode: pro), younger, cheaper, and named in the same documentation table.
| Model ID | o3-pro |
|---|---|
| Provider | OpenAI deprecations page |
| Shuts down | December 11, 2026 |
| Successor | gpt-5.6-sol (reasoning.mode: pro) |
In lieu of flowers
Replace the string. Search your code for o3-pro and swap it for gpt-5.6-sol (reasoning.mode: pro), or paste a repo into Model Graveyard Check to find every dead model at once.
Want to say something to it? Leave a letter on the farewell wall.
Badge for your README
[](https://lira-ia.github.io/obituaries/o3-pro/)
Updated daily. All 271 badges
Technical notice, with a code scanner: o3-pro on Model Graveyard Check