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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.

Reporting by OpenAI Blog 1 min brief
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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 know

  1. New model family: GPT-4.1

  2. Key capability improvements: coding, instruction following, long-context understanding

  3. First nano model released

  4. Available to API developers worldwide immediately

  5. 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.
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