Claude Opus 5.5 (Medium, Default Fallback) vs Claude Sonnet 4.6 (Non-reasoning, High)
Claude Opus 5.5 (Medium, Default Fallback) vs Claude Sonnet 4.6 (Non-reasoning, High). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.
Verdict
Comparison incomplete
A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.
| Metric | Claude Opus 5.5 (Medium, Default Fallback) | Claude Sonnet 4.6 (Non-reasoning, High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 51.2 | 24.7 | −51.8% Claude Sonnet 4.6 (No… is 51.8% less intelligent |
| Total AA cost (lower is better) | $1,626.81 | Not reported | — not comparable |
| End-to-end time (lower is better) | 21.80s | 12.45s | −42.9% Claude Sonnet 4.6 (No… is 42.9% faster |
| Price per 1M tokens (in / out) | $4.00 / $20.0 | $3.00 / $15.0 | |
| Input modalities | Text, Image | Text, Image |
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-opus-5-5-medium/claude-sonnet-4-6 · Markdown: /api/v1/compare/claude-opus-5-5-medium/claude-sonnet-4-6?format=md · llms.txt · agent skill