gpt-4-0125-preview is shut down

Announced: 26 Sept 2025
Effective: passed 26 Mar 2026
Source: the vendor’s own page · last checked 23 Sept 2026

What breaks

Any request naming this model returns an error from the shutdown date. Pinned model names in code or config are what break, not the SDK.

What to do

Move to gpt-5, or gpt-4.1 for latency-sensitive work that does not need reasoning.

Advice confirmed 23 Sept 2026

What the vendor said

On 26 September 2025 OpenAI deprecated a set of older model snapshots with declining usage. Access to gpt-4-0125-preview was shut down on 26 March 2026.