GPT-4.1 Nano
OpenAI
openai/gpt-4.1-nanoGPT-4.1 Nano is OpenAI's smallest and fastest GPT-4.1 variant, optimized for extremely low-latency, low-cost tasks such as classification, extraction, and simple chat. It sacrifices some capability for speed and price relative to Mini and full GPT-4.1.
Cost rate
0.1x
Context
1M
Released
Apr 14, 2025
Input
ImageTextFile
Output
Text
Support
ReasoningTool callingStructured outputs
Best at
The categories where this model ranks highest.