This date has passed. If it just broke for you, what to do is below.

criticalShutdown

gpt-4-0314 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-4-0314 was shut down on 26 March 2026.

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The team plan is not open yet.

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