GPT-4.1 is a large language model within OpenAI's GPT series. It was released on April 14, 2025. GPT-4.1 can be accessed through the OpenAI API or the OpenAI Developer Playground. From Wikipedia
Sam Altman’s team patched the autoswitcher that had routed queries to weaker engines, introducing three per-query modes—Auto, Fast and Thinking—with usage caps for paid subscribers.
