Head to head

GPT-5 Pro vs GPT-5.5 Cyber

On a blended workload of one million input tokens and three million output tokens, GPT-5.5 Cyber is 1.6× cheaper than GPT-5 Pro.

GPT-5 ProGPT-5.5 Cyber
Provider OpenAI OpenAI
Input / MTok $15 $12.5
Output / MTok $120 $75
Cache read / MTok $1.25
Context window
Blended 1M in + 3M out $375.00 $237.50
Status ga ga

GPT-5 Pro detail   GPT-5.5 Cyber detail