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Description
GPT-5 Nano is OpenAI's smallest general-purpose model in the GPT-5 family, with a 400k token context window.
OpenAI's frontier model for complex professional workloads. 1M token context, text + image input, native computer use.
I/O price /1M
$0.05/$0.4
$5.00/$30.00
Input /1M
$0.05
$5.00
Output /1M
$0.4
$30.00
Cached in /1M
$0.005
$0.5
Context
400K
1M
Δ input since launch
decreased 0.0%
—
Δ output since launch
decreased 0.0%
—
Released
Aug 2025
Apr 2026
Status
—
—
Provider
OpenAI
OpenAI