Claude Opus 5.5 (High, Default Fallback) vs Qwen3.5 4B (Reasoning)

Claude Opus 5.5 (High, Default Fallback) vs Qwen3.5 4B (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.

MetricClaude Opus 5.5 (High, Default Fallback)Qwen3.5 4B (Reasoning)Difference
Intelligence (higher is better)53.613.1−75.6% Qwen3.5 4B (Reasoning) is 75.6% less intelligent
Total AA cost (lower is better)$2,172.43Not reported— not comparable
End-to-end time (lower is better)37.63s124.03s+229.6% Qwen3.5 4B (Reasoning) is 229.6% slower
Price per 1M tokens (in / out)$4.00 / $20.0$0.03 / $0.15
Input modalitiesText, ImageText, Image, Video
Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-opus-5-5-high/qwen3-5-4b · Markdown: /api/v1/compare/claude-opus-5-5-high/qwen3-5-4b?format=md · llms.txt · agent skill