# MiMo-V2.5 vs Step 3.7 Flash

> MiMo-V2.5 is the stronger model overall, scoring 43.4 to 37.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mimo-v2-5-vs-step-3-7-flash
- Last updated: 2026-10-11
- Shared benchmarks: 3

## Summary

- They share 3 benchmarks with published results for both. MiMo-V2.5 scores higher in 2 categories and Step 3.7 Flash in 1 category; 3 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where MiMo-V2.5 leads 28.6 to 21.6.
- MiMo-V2.5 is cheaper at $0.14 / $0.28 per million input/output tokens, against $0.18 / $1.11 for Step 3.7 Flash.
- MiMo-V2.5 accepts more context: 1.05M tokens versus 256K.

## Snapshot

| | MiMo-V2.5 | Step 3.7 Flash |
|---|---|---|
| Provider | Xiaomi | StepFun |
| Noometry Index | 43.4 | 37.3 |
| Rank | 93 | 207 |
| Context | 1.05M | 256K |
| Input $/M | $0.14 | $0.18 |
| Output $/M | $0.28 | $1.11 |
| Weights | Open | Open |

## Coding

- MiMo-V2.5: 43.9 (#81)
- Step 3.7 Flash: 40.0 (#150)

| Benchmark | MiMo-V2.5 | Step 3.7 Flash |
|---|---|---|
| SciCode | 43.1% | 40% |
| ALE-Bench | 513.95 | 694.12 |
| LMArena WebDev | 1438 | — |
| LMArena Coding | 1469 | — |

## Reasoning

- MiMo-V2.5: 28.6 (#101)
- Step 3.7 Flash: 21.6 (#219)

| Benchmark | MiMo-V2.5 | Step 3.7 Flash |
|---|---|---|
| CritPt | 3.7% | 2.3% |
| NYT Connections (extended) | — | 39.7% |
| LMArena Hard Prompts | 1450 | — |

## Math

- MiMo-V2.5: 36.8 (#163)
- Step 3.7 Flash: 42.9 (#82)

| Benchmark | MiMo-V2.5 | Step 3.7 Flash |
|---|---|---|
| MathArena Final-Answer Competitions | — | 68.5% |
| ProofBench | 16% | — |
| LMArena Math | 1436 | — |

## Knowledge

- MiMo-V2.5: 40.8 (#115)
- Step 3.7 Flash: —

| Benchmark | MiMo-V2.5 | Step 3.7 Flash |
|---|---|---|
| LMArena Expert | 1460 | — |

## Multimodal

- MiMo-V2.5: 39.8 (#54)
- Step 3.7 Flash: —

| Benchmark | MiMo-V2.5 | Step 3.7 Flash |
|---|---|---|
| LMArena Vision | 1247 | — |

## Multilingual

- MiMo-V2.5: 51.9 (#99)
- Step 3.7 Flash: —

| Benchmark | MiMo-V2.5 | Step 3.7 Flash |
|---|---|---|
| LMArena Non-English | 1404 | — |
| LMArena Chinese | 1468 | — |
| LMArena French | 1447 | — |
| LMArena German | 1421 | — |
| LMArena Japanese | 1306 | — |
| LMArena Korean | 1363 | — |
| LMArena Russian | 1395 | — |
| LMArena Spanish | 1416 | — |

## Instruction Following

- MiMo-V2.5: 75.5 (#60)
- Step 3.7 Flash: —

| Benchmark | MiMo-V2.5 | Step 3.7 Flash |
|---|---|---|
| LMArena Instruction Following | 1434 | — |

## Long Context

- MiMo-V2.5: 44.2 (#73)
- Step 3.7 Flash: —

| Benchmark | MiMo-V2.5 | Step 3.7 Flash |
|---|---|---|
| LMArena Longer Query | 1445 | — |

## Writing & Preference

- MiMo-V2.5: 61.6 (#86)
- Step 3.7 Flash: —

| Benchmark | MiMo-V2.5 | Step 3.7 Flash |
|---|---|---|
| LMArena Text | 1428 | — |
| LMArena Creative Writing | 1393 | — |
| LMArena Multi-Turn | 1445 | — |

## FAQ

### Is MiMo-V2.5 better than Step 3.7 Flash?

MiMo-V2.5 is the stronger model overall, scoring 43.4 to 37.3 on the Noometry Index.

### Which is cheaper, MiMo-V2.5 or Step 3.7 Flash?

MiMo-V2.5 is cheaper. It lists at $0.14 per million input tokens and $0.28 per million output tokens; Step 3.7 Flash lists at $0.18 and $1.11.

### Is MiMo-V2.5 or Step 3.7 Flash better for coding?

MiMo-V2.5 scores higher on coding benchmarks: 43.9 versus 40.0 in the Noometry coding category.

### Which has the bigger context window?

MiMo-V2.5 does, with 1.05M tokens against 256K.

### How many benchmarks do MiMo-V2.5 and Step 3.7 Flash share?

3 benchmarks have published results for both models. MiMo-V2.5 has 23 scored results on Noometry and Step 3.7 Flash has 5.