Claude Sonnet 5.5 (Medium, Default Fallback) vs Qwen3.5 397B A17B (Reasoning)
Which is better for the money: Claude Sonnet 5.5 (Medium, Default Fallback) by Anthropic or Qwen3.5 397B A17B (Reasoning) by Alibaba? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Clear winner
Verdict
Pick Claude Sonnet 5.5 (Medium, Default Fallback)
Qwen3.5 397B A17B (Reasoning) vs Claude Sonnet 5.5 (Medium, Default Fallback): 54.9% less intelligence, 51.2% more cost to run the AA benchmark, and 937.4% slower end-to-end.
| Metric | Claude Sonnet 5.5 (Medium, Default Fallback) | Qwen3.5 397B A17B (Reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 40.8 | 18.4 | −54.9% Qwen3.5 397B A17B (Re… is 54.9% less intelligent |
| Total AA cost (lower is better) | $622.28 | $940.97 | +51.2% Qwen3.5 397B A17B (Re… is 51.2% more expensive |
| End-to-end time (lower is better) | 6.28s | 65.15s | +937.4% Qwen3.5 397B A17B (Re… is 937.4% slower |
| Price per 1M tokens (in / out) | $2.00 / $10.0 | $0.60 / $3.60 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- Claude Sonnet 5.5 (Medium, Default Fallback) is off the frontier: at the same or lower cost, GPT-6.1 Sol (High) scores 50.20 for $521.
- Qwen3.5 397B A17B (Reasoning) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
Claude Sonnet 5.5 (Medium, Default Fallback)Qwen3.5 397B A17B (Reasoning)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-sonnet-5-5-medium/qwen3-5-397b-a17b · Markdown: /api/v1/compare/claude-sonnet-5-5-medium/qwen3-5-397b-a17b?format=md · llms.txt · agent skill