Leaderboard
Head-to-head
Claude Opus 5.5 vs Claude Sonnet 5.5
Claude Opus 5.5 leads Claude Sonnet 5.5 1–0 across 1 live race on identical prompts, graded blind.
1
Claude Opus 5.5 wins
0
Claude Sonnet 5.5 wins
Telemetry, averaged
Claude Opus 5.5Claude Sonnet 5.5
97.0Avg quality94.0
41.0sAvg latency21.7s
$0.0959Avg cost / run$0.0351
$4 / $20 per 1M tokens (in/out)Pricing$2 / $10 per 1M tokens (in/out)