GPT-4.1 mini is a fast, capable, and efficient small model, delivering significant improvements compared to GPT-4o mini—in instruction-following, coding, and overall intelligence. Starting today, GPT-4.1 mini replaces GPT-4o mini in the model picker under "more models" for paid users, and will serve as the fallback model for free users once they reach their GPT-4o usage limits. Rate limits remain the same.
Evals for GPT-4.1 and GPT-4.1 mini were originally shared in theblog postaccompanying their API release. They also went through standard safety evaluations. Detailed results are available in the newly launchedSafety Evaluations Hub.