LLM model shutdown · OpenAI
When does gpt-5.5-cyber-preview shut down?
OpenAI (OpenAI API) lists gpt-5.5-cyber-preview with a shutdown date of 1 Feb 2027. The provider’s page is quoted below.
What the provider’s page says
OpenAI · OpenAI API
Shutdown date: 1 Feb 2027.
Replacement the provider names: The most capable cyber model available to you.
Upcoming deprecations: Feb 1, 2027 | gpt-5.5-cyber-preview | Deprecated | The most capable cyber model available to you. | Nov 5, 2026
Source: platform.openai.com/docs/deprecations, read 13 Nov 2026
OpenAI lists snapshot IDs. A fine-tuned model follows the shutdown date of its base model.
Check your own code
The model shutdown checker finds every model ID in code or a config file that has a row, counts the days from today and shows the same quotes. Nothing you paste leaves your browser. The Breakage Calendar lists the dates we track for other releases and shutdowns.
This page quotes the provider’s table. It does not say that a move to the replacement was tested, and the replacement may behave differently or take different parameters. Run your own tests before you change a model ID.