Model comparison
MiMo-V2-Pro vs Step 3.7 Flash
MiMo-V2-Pro is the stronger model overall, scoring 43.0 to 37.3 on the Noometry Index.
Last verified . 2 shared benchmarks.
StepFunSummary
- They share 2 benchmarks with published results for both. MiMo-V2-Pro scores higher in 2 categories and Step 3.7 Flash in 1 category; 2 gaps are clear of the uncertainty.
- The widest gap is in coding, where MiMo-V2-Pro leads 43.8 to 40.0.
- The biggest single-benchmark swing is NYT Connections (extended): 25.8% for MiMo-V2-Pro and 39.7% for Step 3.7 Flash.
- Step 3.7 Flash is cheaper at $0.18 / $1.11 per million input/output tokens, against $0.43 / $0.87 for MiMo-V2-Pro.
- MiMo-V2-Pro accepts more context: 1.05M tokens versus 256K.
- Step 3.7 Flash has downloadable open weights; the other is API-only.
Side by side
| MiMo-V2-Pro | Step 3.7 Flash | |
|---|---|---|
| Provider | Xiaomi | StepFun |
| Noometry Index | 43.0 | 37.3 |
| Released | 2026-03-18 | 2026-05-29 |
| Weights | Proprietary | Open |
| Context window | 1.05M | 256K |
| Max output | 131K | 256K |
| Input $ / M tokens | $0.43 | $0.18 |
| Output $ / M tokens | $0.87 | $1.11 |
| Results tracked | 23 | 5 |
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Category by category
Coding MiMo-V2-Pro leads
MiMo-V2-Pro: 43.8 (#83), Step 3.7 Flash: 40.0 (#150)
| Benchmark | MiMo-V2-Pro | Step 3.7 Flash |
|---|---|---|
| ALE-Bench | 785.17 | 694.12 |
| LMArena WebDev | 1433 | — |
| SciCode | — | 40% |
| LMArena Coding | 1476 | — |
Reasoning Too close to call
MiMo-V2-Pro: 22.1 (#206), Step 3.7 Flash: 21.6 (#219)
| Benchmark | MiMo-V2-Pro | Step 3.7 Flash |
|---|---|---|
| NYT Connections (extended) | 25.8% | 39.7% |
| CritPt | — | 2.3% |
| Thematic Generalization | 45.9% | — |
| LMArena Hard Prompts | 1457 | — |
Math Step 3.7 Flash leads
MiMo-V2-Pro: 39.5 (#102), Step 3.7 Flash: 42.9 (#82)
| Benchmark | MiMo-V2-Pro | Step 3.7 Flash |
|---|---|---|
| MathArena Final-Answer Competitions | — | 68.5% |
| LMArena Math | 1447 | — |
Knowledge Not comparable
MiMo-V2-Pro: 41.4 (#111), Step 3.7 Flash: —
| Benchmark | MiMo-V2-Pro | Step 3.7 Flash |
|---|---|---|
| LMArena Expert | 1478 | — |
Multilingual Not comparable
MiMo-V2-Pro: 52.7 (#81), Step 3.7 Flash: —
| Benchmark | MiMo-V2-Pro | Step 3.7 Flash |
|---|---|---|
| LMArena Non-English | 1416 | — |
| LMArena Chinese | 1456 | — |
| LMArena French | 1469 | — |
| LMArena German | 1417 | — |
| LMArena Japanese | 1366 | — |
| LMArena Korean | 1400 | — |
| LMArena Russian | 1427 | — |
| LMArena Spanish | 1457 | — |
Instruction Following Not comparable
MiMo-V2-Pro: 76.0 (#49), Step 3.7 Flash: —
| Benchmark | MiMo-V2-Pro | Step 3.7 Flash |
|---|---|---|
| LMArena Instruction Following | 1445 | — |
Long Context Not comparable
MiMo-V2-Pro: 41.5 (#138), Step 3.7 Flash: —
| Benchmark | MiMo-V2-Pro | Step 3.7 Flash |
|---|---|---|
| CL-bench | 15.7% | — |
| CL-bench Life | 6.9% | — |
| LMArena Longer Query | 1455 | — |
Writing & Preference Not comparable
MiMo-V2-Pro: 62.8 (#70), Step 3.7 Flash: —
| Benchmark | MiMo-V2-Pro | Step 3.7 Flash |
|---|---|---|
| LMArena Text | 1436 | — |
| LMArena Creative Writing | 1415 | — |
| LMArena Multi-Turn | 1456 | — |
Frequently asked questions
Is MiMo-V2-Pro better than Step 3.7 Flash?
MiMo-V2-Pro is the stronger model overall, scoring 43.0 to 37.3 on the Noometry Index.
Which is cheaper, MiMo-V2-Pro or Step 3.7 Flash?
Step 3.7 Flash is cheaper. It lists at $0.18 per million input tokens and $1.11 per million output tokens; MiMo-V2-Pro lists at $0.43 and $0.87.
Is MiMo-V2-Pro or Step 3.7 Flash better for coding?
MiMo-V2-Pro scores higher on coding benchmarks: 43.8 versus 40.0 in the Noometry coding category.
Which has the bigger context window?
MiMo-V2-Pro does, with 1.05M tokens against 256K.
How many benchmarks do MiMo-V2-Pro and Step 3.7 Flash share?
2 benchmarks have published results for both models. MiMo-V2-Pro has 23 scored results on Noometry and Step 3.7 Flash has 5.