Claude 2.1 vs Claude 4.5 Sonnet (Non-reasoning)
Claude 2.1 vs Claude 4.5 Sonnet (Non-reasoning). 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 2.1 | Claude 4.5 Sonnet (Non-reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 5.6 | 19.3 | +244.6% Claude 4.5 Sonnet (No… is 3.4× more intelligent |
| Total AA cost (lower is better) | Not reported | Not reported | — not comparable |
| End-to-end time (lower is better) | Not reported | 12.54s | — not comparable |
| Price per 1M tokens (in / out) | — | $3.00 / $15.0 | |
| Input modalities | Text | Text, Image |
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-21/claude-4-5-sonnet · Markdown: /api/v1/compare/claude-21/claude-4-5-sonnet?format=md · llms.txt · agent skill