Breaking model

OpenAI shut down gpt-4-0314, gpt-4-1106-preview and gpt-4-0125-preview, including the gpt-4-turbo-preview alias, on March 26, 2026.

Took effect Mar 26, 2026 · models gpt-4-0314, gpt-4-1106-preview, gpt-4-0125-preview

Reviewed against the vendor source on Sep 24, 2026 (AI-assisted review). Key facts are re-checked against the source daily.

What changes

Announced September 26, 2025. The gpt-4-turbo-preview and gpt-4-turbo-preview-completions aliases pointed to gpt-4-0125-preview and were shut down with it. OpenAI recommends gpt-5, or gpt-4.1 for tasks that are especially latency sensitive and don't require reasoning.

Breaking: Calls fail after this date.

What to do

Switch to gpt-5, or to gpt-4.1 for latency-sensitive work that doesn't need reasoning. Before pinning a snapshot, check the deprecations page: gpt-5-2025-08-07 shuts down December 11, 2026.

Strings to search for

gpt-4-0314gpt-4-0125-previewgpt-4-1106-previewgpt-4-turbo-previewgpt-4-turbo-preview-completions

Source

https://developers.openai.com/api/docs/deprecations