MiMo-V2.6-Flash vs Step 5 Preview
Which is better for the money: MiMo-V2.6-Flash by Xiaomi or Step 5 Preview by StepFun? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Trade-off
Verdict
Depends on your budget
Step 5 Preview scores 5.8 points higher (43.7 vs 37.9) but costs 11× as much to run the benchmark ($1190 vs $110; premium vs mid-range cost classes). They are not alternatives at one budget: pick Step 5 Preview when you need intelligence above 37.9, and MiMo-V2.6-Flash when 37.9 is enough.
| Metric | MiMo-V2.6-Flash | Step 5 Preview | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 37.9 | 43.7 | +15.3% Step 5 Preview is 15.3% more intelligent |
| Total AA cost (lower is better) | $109.55 | $1,190.26 | +986.5% Step 5 Preview is 11× more expensive |
| End-to-end time (lower is better) | 49.53s | 12.06s | −75.7% Step 5 Preview is 75.7% faster |
| Price per 1M tokens (in / out) | $0.14 / $0.28 | $1.00 / $2.70 | |
| Input modalities | Text, Image | Text, Image |
Step 5 Preview vs MiMo-V2.6-Flash: 15.3% more intelligence, 986.5% more cost to run the AA benchmark, and 75.7% faster end-to-end.
Today's Pareto frontier
Against the frontier
- MiMo-V2.6-Flash is on today's frontier: nothing is both smarter and cheaper.
- Step 5 Preview is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
MiMo-V2.6-FlashStep 5 PreviewToday's Pareto frontierOpen-weights frontierEvery other model
Matchup
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