FrontierThe story, in brief
Introducing GPT-4.1 in the API
OpenAI just shipped GPT-4.1. Across-the-board wins in coding, instruction-following, and long-context. Your models are already behind.
The KeyNews take
Why it matters
OpenAI releases a new flagship model family with measurable improvements in three critical domains (coding, instruction-following, long-context), forcing every company running on GPT-4 or older to reassess their stack immediately.
The key facts
5 to knowNew model family: GPT-4.1
Key capability improvements: coding, instruction following, long-context understanding
First nano model released
Available to API developers worldwide immediately
Published April 14, 2025
Go to the source
OpenAI Blogopenai.com
Publisher excerpt: Introducing GPT-4.1 in the API—a new family of models with across-the-board improvements, including major gains in coding, instruction following, and long-context understanding. We’re also releasing our first nano model. Available to developers worldwide starting today.