OpenAI models shut down on March 26, 2026

OpenAI shut down 4 models on March 26, 2026: gpt-4-0125-preview, gpt-4-0314, gpt-4-turbo-preview, and gpt-4-turbo-preview-completions. Official replacements named by the provider: gpt-4.1* and gpt-5. Requests to these models started failing on that date.

This date has passed. The rows below stay up because people still search after requests fail. OpenAI deprecation page · OpenAI on SunsetDiff · Shutdowns in 2026-03

Migration checklist

1. Find every request that still uses these model ids. They shut down on March 26, 2026.
2. Point each request at the replacement in the table. If a cell says "Not published", the provider did not name one.
3. Open the source link on each row and read that page before you switch.
4. Run the scan page on your code to catch the ids in this table.

Scan your code for these model ids. Each migrate link opens the diff for that model.

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