GPT-5.4 nano is the most lightweight and cost-efficient variant of the GPT-5.4 family, optimized for speed-critical and high-volume tasks. It supports text and image inputs and is designed for low-latency...
In / out price$0.20/$1.25per 1M tokens
Context
400K tokens
Parameters
Undisclosed
Modalities
→
Released
Mar 17, 2026
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