Shutdown calendar / OpenAI API
chatgpt-4o-latest shut down on Feb 17, 2026
It is already gone: requests to it fail.
The provider recommends gpt-5.1-chat-latest.
| Platform | ID | Shutdown | Recommended replacement | Source |
|---|---|---|---|---|
| OpenAI API | chatgpt-4o-latest | Feb 17, 2026 shut down 222d ago | gpt-5.1-chat-latest | official page |
What breaks
- Requests fail. After Feb 17, 2026 every call that names
chatgpt-4o-latestreturns an error on OpenAI API. Nothing is migrated for you. - Output changes. A newer model answers differently: length, format, refusals and JSON shape can all shift. Run your own prompts through both models before the date and compare.
Find it in your code
Quick look:
grep -rnF "chatgpt-4o-latest" --include=*.{py,js,ts,go,java,rb,yaml,yml,json,env} .Or scan the whole repo for this and every other retiring model, including parameters the replacement rejects:
Want the migration done?
Our $199 migration report runs your saved prompts on chatgpt-4o-latest and on the replacement, shows the outputs side by side,
and gives you a ready patch. See pricing.