Head to head

o1-pro vs GPT-5.2 Pro

On a blended workload of one million input tokens and three million output tokens, GPT-5.2 Pro is 3.7× cheaper than o1-pro.

o1-proGPT-5.2 Pro
Provider OpenAI OpenAI
Input / MTok $150 $21
Output / MTok $600 $168
Cache read / MTok
Context window 200,000
Blended 1M in + 3M out $1,950 $525.00
Status ga ga

o1-pro detail   GPT-5.2 Pro detail