Claude Sonnet 5 (Xhigh) vs Qwen3.8 27B (Low)
Which is better for the money: Claude Sonnet 5 (Xhigh) by Anthropic or Qwen3.8 27B (Low) by Alibaba? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Trade-off
Verdict
Depends on your budget
Claude Sonnet 5 (Xhigh) scores 8.2 points higher (34.4 vs 26.2) but costs 2.8× as much to run the benchmark ($3255 vs $1165; flagship vs premium cost classes). Pick Claude Sonnet 5 (Xhigh) when the extra intelligence is worth the premium, otherwise Qwen3.8 27B (Low).
| Metric | Claude Sonnet 5 (Xhigh) | Qwen3.8 27B (Low) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 34.4 | 26.2 | −23.8% Qwen3.8 27B (Low) is 23.8% less intelligent |
| Total AA cost (lower is better) | $3,255.40 | $1,164.93 | −64.2% Qwen3.8 27B (Low) is 64.2% cheaper |
| End-to-end time (lower is better) | 32.78s | 58.18s | +77.5% Qwen3.8 27B (Low) is 77.5% slower |
| Price per 1M tokens (in / out) | $2.00 / $10.0 | $0.50 / $3.00 | |
| Input modalities | Text, Image | Text, Image, Video |
Qwen3.8 27B (Low) vs Claude Sonnet 5 (Xhigh): 23.8% less intelligence, 64.2% less cost to run the AA benchmark, and 77.5% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Sonnet 5 (Xhigh) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.
- Qwen3.8 27B (Low) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
Claude Sonnet 5 (Xhigh)Qwen3.8 27B (Low)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-xhigh/qwen3-8-27b-low · Markdown: /api/v1/compare/claude-sonnet-5-xhigh/qwen3-8-27b-low?format=md · llms.txt · agent skill