Head to head

GPT-5.2 Pro vs o1

On a blended workload of one million input tokens and three million output tokens, o1 is 2.7× cheaper than GPT-5.2 Pro.

GPT-5.2 Proo1
Provider OpenAI OpenAI
Input / MTok $21 $15
Output / MTok $168 $60
Cache read / MTok $7.5
Context window 200,000
Blended 1M in + 3M out $525.00 $195.00
Status ga ga

GPT-5.2 Pro detail   o1 detail