LLM model shutdown · OpenAI
When does gpt-5.4-nano shut down?
OpenAI (OpenAI API) lists gpt-5.4-nano with a shutdown date of 1 Apr 2027. The provider’s page is quoted below.
What the provider’s page says
OpenAI · OpenAI API
Shutdown date: 1 Apr 2027.
Replacement the provider names: gpt-6-luna
Upcoming deprecations: Apr 1, 2027 | gpt-5.4-nano, gpt-5.4-nano-2026-03-17 | Deprecated | gpt-6-luna | Oct 1, 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.