GPT-4o, GPT-4o mini, GPT-4.1 and GPT-4.1 mini leave the OpenAI API on January 14, 2027

ChatGPTRetirementAnnounced

OpenAI notified developers on October 14, 2026 that gpt-4o (2024-08-06 and 2024-11-20), gpt-4o-mini (2024-07-18), gpt-4.1 (2025-04-14) and gpt-4.1-mini (2025-04-14) are deprecated and will be removed from the API on January 14, 2027.

OpenAI recommends gpt-6-luna as the replacement for all four.
Fine-tuned versions follow the same shutdown schedule as their base models.

Who can use it: OpenAI API developers using these GPT-4o and GPT-4.1 snapshots, including fine-tuned versions of them.
When: 2027-01-14 · date only
Deprecation notified October 14, 2026. Removal January 14, 2027, given as a calendar date with no time.

OpenAI API deprecations Announced 2026-10-14 · date only

Read the official announcement for access details. Availability can depend on your plan, region or workplace settings.

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