GPT-5 Nano
by OpenAI — Price updated 2026-04-04
Pricing ($/1M tokens)
Input
$0.05
Output
$0.40
Cache Read
$0.0050
Web Search
$0.01
Specifications
Context Window
272,000
Max Output
128,000
Input
text, image, file
Output
text
Tool Calling
Reasoning
Structured Output