Qwen3.8 27B (Medium) vs Step 5 Preview
Which is better for the money: Qwen3.8 27B (Medium) by Alibaba or Step 5 Preview by StepFun? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Trade-off
Verdict
Depends on your budget
Step 5 Preview scores 16.1 points higher (43.7 vs 27.6) but costs 1.0× as much to run the benchmark ($1190 vs $1165; both premium class). Pick Step 5 Preview when the extra intelligence is worth the premium, otherwise Qwen3.8 27B (Medium).
| Metric | Qwen3.8 27B (Medium) | Step 5 Preview | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 27.6 | 43.7 | +58.3% Step 5 Preview is 58.3% more intelligent |
| Total AA cost (lower is better) | $1,165.00 | $1,190.26 | +2.2% Step 5 Preview is 2.2% more expensive |
| End-to-end time (lower is better) | 56.04s | 12.08s | −78.4% Step 5 Preview is 78.4% faster |
| Price per 1M tokens (in / out) | $0.50 / $3.00 | $1.00 / $2.70 | |
| Input modalities | Text, Image, Video | Text, Image |
Step 5 Preview vs Qwen3.8 27B (Medium): 58.3% more intelligence, 2.2% more cost to run the AA benchmark, and 78.4% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Qwen3.8 27B (Medium) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- Step 5 Preview is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
Qwen3.8 27B (Medium)Step 5 PreviewToday'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/qwen3-8-27b-medium/step-5 · Markdown: /api/v1/compare/qwen3-8-27b-medium/step-5?format=md · llms.txt · agent skill