Head to head

Claude Opus 4.1 vs GPT-5.5 Cyber

On a blended workload of one million input tokens and three million output tokens, GPT-5.5 Cyber is line-ball with Claude Opus 4.1.

Claude Opus 4.1GPT-5.5 Cyber
Provider Anthropic OpenAI
Input / MTok $15 $12.5
Output / MTok $75 $75
Cache read / MTok $1.5 $1.25
Context window 200,000
Blended 1M in + 3M out $240.00 $237.50
Status retired ga

Claude Opus 4.1 detail   GPT-5.5 Cyber detail