Head to head

GPT-5.4 nano vs GPT-5.2

On a blended workload of one million input tokens and three million output tokens, GPT-5.4 nano is 11.1× cheaper than GPT-5.2.

GPT-5.4 nanoGPT-5.2
Provider OpenAI OpenAI
Input / MTok $0.2 $1.75
Output / MTok $1.25 $14
Cache read / MTok $0.02 $0.175
Context window
Blended 1M in + 3M out $3.95 $43.75
Status ga ga

GPT-5.4 nano detail   GPT-5.2 detail