Head to head

Claude Opus 4.6 vs Claude Sonnet 4.5

On a blended workload of one million input tokens and three million output tokens, Claude Sonnet 4.5 is 1.7× cheaper than Claude Opus 4.6.

Claude Opus 4.6Claude Sonnet 4.5
Provider Anthropic Anthropic
Input / MTok $5 $3
Output / MTok $25 $15
Cache read / MTok $0.5 $0.3
Context window 1,000,000 200,000
Blended 1M in + 3M out $80.00 $48.00
Status ga ga

Claude Opus 4.6 detail   Claude Sonnet 4.5 detail