I am excited to be introducing GPT-4.1 in the OpenAI API — a major upgrade that redefines what's possible for developers building with AI.
Here’s what’s new and noteworthy:
🧩 3 powerful models:
GPT-4.1: State-of-the-art performance across coding, long-context, and instruction following
GPT-4.1 mini: Matches GPT-4o in intelligence with half the latency and 83% lower cost
GPT-4.1 nano: Fastest, most efficient model for tasks like classification and autocompletion
🧠 Performance highlights:
54.6% on SWE-bench Verified (21.4% better than GPT-4o)
38.3% on MultiChallenge for complex instruction following
1M token context — ideal for massive codebases or document processing
Better vision & image understanding
Enhanced tool use & code diffs for real-world dev workflows
💡 Use cases exploding: From intelligent agents and legal document review to complex frontend builds, this release is built for real-world needs — all with lower cost, reduced latency, and smarter task handling.
🎯 Only available via the API, not ChatGPT — perfect for devs, startups, and enterprises ready to scale serious applications.
Let us know what you’re building with it — the possibilities just hit a whole new level!
