OpenAI will remove GPT-4o, GPT-4o mini, GPT-4.1 and GPT-4.1 mini from the API on January 14, 2027, recommending gpt-6-luna
On Oct 14 OpenAI's API deprecations page announced that GPT-4o (2024-08-06 and 2024-11-20 snapshots), GPT-4o mini (2024-07-18), GPT-4.1 and GPT-4.1 mini (2025-04-14) will be removed from the API on January 14, 2027. Fine-tunes built on them shut down the same day, and the recommended replacement for all four is gpt-6-luna, listed at $0.10 input / $0.50 output per 1M tokens versus $2.50 / $10 for GPT-4o.

Key Takeaways
- Shutdown: January 14, 2027 (about 3 months' notice) for gpt-4o-2024-08-06, gpt-4o-2024-11-20, gpt-4o-mini-2024-07-18, gpt-4.1-2025-04-14 and gpt-4.1-mini-2025-04-14
- Fine-tuned versions follow the base model's shutdown date; existing customers already lose new fine-tuning jobs on Jan 6, 2027
- Standard price per 1M tokens (input/output): gpt-6-luna $0.10/$0.50, GPT-4o $2.50/$10, GPT-4.1 $2.00/$8.00, GPT-4.1 mini $0.40/$1.60, GPT-4o mini $0.15/$0.60
- Monitor programmatically via the shutdown_date field on GET /v1/models
- Second October deprecation wave: older snapshots such as gpt-4o-2024-05-13 and o4-mini shut down Oct 23; gpt-5.3-codex and gpt-5.1 go on Apr 1, 2027