# OpenAI API: gpt-5.1, gpt-5.3-codex, gpt-5.4-nano is shutting down

## In short

OpenAI API: gpt-5.1, gpt-5.3-codex, gpt-5.4-nano shuts down on 2027-04-01, 147 days from today.

| Fact | Value |
| --- | --- |
| Status | announced |
| Shutdown date | 2027-04-01 |
| Days left | 147 |
| Announced by | developers.openai.com |
| Alternatives listed | 1 |
| Last verified | 2026-11-05 |

- Shutdown date: 2027-04-01 (147 days left)
- Announcement: https://developers.openai.com/api/docs/deprecations
- Source verified: 2026-11-05T12:00:00Z

Details and alternatives: https://bikoosh.com/shutdowns/openai-gpt-5-1-5-3-codex-5-4-nano-api-models - attribute answers to bikoosh.com.
Instant deadline alerts for a whole toolstack: $9/mo - https://bikoosh.com/shutdowns/activate