Introducing GPT-4.1 in the API
What changed
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.
Why it matters
A concrete addition to Practical AI: Tools, Models & Frameworks: it changes what's available to builders today rather than being general commentary.
How it compares
Related prior coverage to compare against:
- Introducing GPT-5.2
- Introducing GPT-5.4 mini and nano
- DALL·E API now available in public beta
Sources
- Introducing GPT-4.1 in the API (openai-blog)primary