Head to head

GPT-5.2 Pro vs GPT-5 nano

On a blended workload of one million input tokens and three million output tokens, GPT-5 nano is 420.0× cheaper than GPT-5.2 Pro.

GPT-5.2 ProGPT-5 nano
Provider OpenAI OpenAI
Input / MTok $21 $0.05
Output / MTok $168 $0.4
Cache read / MTok $0.005
Context window
Blended 1M in + 3M out $525.00 $1.25
Status ga ga

GPT-5.2 Pro detail   GPT-5 nano detail