# Grok-3 mini vs MiMo-V2.5

> MiMo-V2.5 is the stronger model overall, scoring 43.0 to 41.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/grok-3-mini-vs-mimo-v2-5
- Last updated: 2026-10-10
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Grok-3 mini scores higher in 3 categories and MiMo-V2.5 in 5 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where MiMo-V2.5 leads 27.8 to 13.8.
- MiMo-V2.5 has downloadable open weights; the other is API-only.

## Snapshot

| | Grok-3 mini | MiMo-V2.5 |
|---|---|---|
| Provider | xAI | Xiaomi |
| Noometry Index | 41.0 | 43.0 |
| Rank | 130 | 89 |
| Context | — | 1.05M |
| Input $/M | — | $0.14 |
| Output $/M | — | $0.28 |
| Weights | Proprietary | Open |

## Coding

- Grok-3 mini: 40.4 (#126)
- MiMo-V2.5: 43.6 (#75)

| Benchmark | Grok-3 mini | MiMo-V2.5 |
|---|---|---|
| LMArena Coding | 1380 | 1469 |
| Aider Polyglot | 49.3% | — |
| LMArena WebDev | — | 1438 |
| SciCode | — | 43.1% |
| WeirdML | 42.6% | — |
| ALE-Bench | — | 513.95 |

## Reasoning

- Grok-3 mini: 13.8 (#323)
- MiMo-V2.5: 27.8 (#98)

| Benchmark | Grok-3 mini | MiMo-V2.5 |
|---|---|---|
| LMArena Hard Prompts | 1374 | 1450 |
| ARC-AGI-2 | 0.4% | — |
| Kagi LLM Benchmark | 61.3% | — |
| ARC-AGI-1 | 16.5% | — |
| CritPt | — | 3.7% |
| Epoch Capabilities Index | 140.35 | — |

## Math

- Grok-3 mini: 40.3 (#78)
- MiMo-V2.5: 35.4 (#145)

| Benchmark | Grok-3 mini | MiMo-V2.5 |
|---|---|---|
| LMArena Math | 1386 | 1436 |
| OTIS Mock AIME 2024-2025 | 77.8% | — |
| ProofBench | — | 16% |
| Omni-MATH | 31.8% | — |
| MATH Level 5 | 90.9% | — |
| FrontierMath (Feb 2025 set) | 5.9% | — |

## Knowledge

- Grok-3 mini: 46.3 (#75)
- MiMo-V2.5: 40.2 (#109)

| Benchmark | Grok-3 mini | MiMo-V2.5 |
|---|---|---|
| LMArena Expert | 1395 | 1459 |
| GPQA Diamond | 76.3% | — |
| MMLU-Pro | 79.9% | — |
| Confabulations | 10.8% | — |
| GPQA (HELM) | 67.5% | — |

## Multimodal

- Grok-3 mini: —
- MiMo-V2.5: 39.0 (#53)

| Benchmark | Grok-3 mini | MiMo-V2.5 |
|---|---|---|
| LMArena Vision | — | 1245 |

## Multilingual

- Grok-3 mini: 48.3 (#141)
- MiMo-V2.5: 52.0 (#96)

| Benchmark | Grok-3 mini | MiMo-V2.5 |
|---|---|---|
| LMArena Non-English | 1352 | 1404 |
| LMArena Chinese | 1387 | 1467 |
| LMArena French | 1357 | 1447 |
| LMArena German | 1350 | 1421 |
| LMArena Japanese | 1343 | 1304 |
| LMArena Korean | 1336 | 1363 |
| LMArena Russian | 1352 | 1395 |
| LMArena Spanish | 1379 | 1412 |

## Instruction Following

- Grok-3 mini: 78.7 (#8)
- MiMo-V2.5: 75.7 (#55)

| Benchmark | Grok-3 mini | MiMo-V2.5 |
|---|---|---|
| LMArena Instruction Following | 1356 | 1433 |
| IFEval | 95.1% | — |

## Long Context

- Grok-3 mini: 41.0 (#142)
- MiMo-V2.5: 44.1 (#69)

| Benchmark | Grok-3 mini | MiMo-V2.5 |
|---|---|---|
| LMArena Longer Query | 1372 | 1444 |
| Fiction.LiveBench | 66.7% | — |

## Writing & Preference

- Grok-3 mini: 52.7 (#163)
- MiMo-V2.5: 61.8 (#82)

| Benchmark | Grok-3 mini | MiMo-V2.5 |
|---|---|---|
| LMArena Text | 1370 | 1427 |
| LMArena Creative Writing | 1342 | 1392 |
| LMArena Multi-Turn | 1355 | 1445 |
| Short-Story Creative Writing | 73.5% | — |
| WildBench | 65.1% | — |

## FAQ

### Is Grok-3 mini better than MiMo-V2.5?

MiMo-V2.5 is the stronger model overall, scoring 43.0 to 41.0 on the Noometry Index.

### Is Grok-3 mini or MiMo-V2.5 better for coding?

MiMo-V2.5 scores higher on coding benchmarks: 43.6 versus 40.4 in the Noometry coding category.

### How many benchmarks do Grok-3 mini and MiMo-V2.5 share?

17 benchmarks have published results for both models. Grok-3 mini has 35 scored results on Noometry and MiMo-V2.5 has 23.