GPT-4.1 mini retirement date: January 14, 2027
gpt-4.1-mini-2025-04-14 shuts down on January 14, 2027 (announced Oct 14, 2026).
- Provider
- OpenAI
- Model IDs affected
gpt-4.1-mini-2025-04-14- Announced
- October 14, 2026
- Shutdown date
- January 14, 2027
- Replacement
- gpt-6-luna
- Platforms
- Dates apply to the OpenAI API. Fine-tuned models follow the same shutdown schedule as their base model. If you use OpenAI models through another platform, check that platform's own retirement schedule.
- Source
- Official OpenAI deprecations page (data last changed 2026-11-02, re-checked daily)
GPT-4.1 mini vs GPT-6 Luna: price and limits
| GPT-4.1 mini | GPT-6 Luna | Change | |
|---|---|---|---|
| Context window (tokens) | 1,047,576 | 1,050,000 | +0% |
| Max output (tokens) | 32,768 | 128,000 | +291% |
| Input, $ per 1M tokens | $0.40 | $0.10 | -75% |
| Output, $ per 1M tokens | $1.60 | $0.50 | -69% |
| Cache read, $ per 1M tokens | $0.10 | $0.01 | -90% |
Prices and limits from models.dev (checked 2026-11-02). Confirm on the official pricing page. Compare the cost for your traffic in the old vs new model calculator.
Migrating from GPT-4.1 mini to GPT-6 Luna
Not yet reviewed. We haven't written model-specific migration notes for GPT-4.1 mini yet. Start with the provider's official guidance and the replacement's model page, and use this general checklist:
- Search your code, config and environment variables for
gpt-4.1-mini-2025-04-14. - Re-run your evaluation set against gpt-6-luna before switching traffic.
- Recount tokens with the new model's tokenizer and re-check
max_tokens, context fit and cost. - Check tool calling, structured output and stop sequences on your real prompts.
- Dates apply to the OpenAI API. Fine-tuned models follow the same shutdown schedule as their base model. If you use OpenAI models through another platform, check that platform's own retirement schedule.
Check your code before Jan 14
Also shutting down on January 14, 2027
- GPT-4.1
gpt-4.1-2025-04-14 - GPT-4o
gpt-4o-2024-08-06 - GPT-4o mini
gpt-4o-mini-2024-07-18
All model retirements · All OpenAI deprecations
FAQ
When will GPT-4.1 mini be retired?
GPT-4.1 mini (gpt-4.1-mini-2025-04-14) shuts down on the OpenAI API on January 14, 2027, according to the official OpenAI API deprecations page.
What should I use instead of gpt-4.1-mini-2025-04-14?
The recommended replacement is gpt-6-luna.
What happens to gpt-4.1-mini-2025-04-14 requests after the shutdown date?
After a model is retired, API requests to it return an error. Move traffic to the replacement and test it on your own prompts before the date.
Does this date apply to Amazon Bedrock, Vertex AI or Azure?
Dates apply to the OpenAI API. Fine-tuned models follow the same shutdown schedule as their base model. If you use OpenAI models through another platform, check that platform’s own retirement schedule.