# Grok-3 mini vs MiMo-V2-Omni

> MiMo-V2-Omni is the stronger model overall, scoring 43.6 to 41.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/grok-3-mini-vs-mimo-v2-omni
- 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-Omni in 5 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where MiMo-V2-Omni leads 29.7 to 13.6.

## Snapshot

| | Grok-3 mini | MiMo-V2-Omni |
|---|---|---|
| Provider | xAI | Xiaomi |
| Noometry Index | 41.2 | 43.6 |
| Rank | 141 | 88 |
| Context | — | 262K |
| Input $/M | — | $0.14 |
| Output $/M | — | $0.28 |
| Weights | Proprietary | Proprietary |

## Coding

- Grok-3 mini: 40.8 (#131)
- MiMo-V2-Omni: 43.3 (#89)

| Benchmark | Grok-3 mini | MiMo-V2-Omni |
|---|---|---|
| LMArena Coding | 1379 | 1466 |
| Aider Polyglot | 49.3% | — |
| WeirdML | 42.6% | — |

## Reasoning

- Grok-3 mini: 13.6 (#334)
- MiMo-V2-Omni: 29.7 (#88)

| Benchmark | Grok-3 mini | MiMo-V2-Omni |
|---|---|---|
| LMArena Hard Prompts | 1375 | 1445 |
| ARC-AGI-2 | 0.4% | — |
| Kagi LLM Benchmark | 61.3% | — |
| ARC-AGI-1 | 16.5% | — |
| Epoch Capabilities Index | 140.35 | — |

## Math

- Grok-3 mini: 42.1 (#85)
- MiMo-V2-Omni: 39.1 (#115)

| Benchmark | Grok-3 mini | MiMo-V2-Omni |
|---|---|---|
| LMArena Math | 1386 | 1430 |
| OTIS Mock AIME 2024-2025 | 77.8% | — |
| Omni-MATH | 31.8% | — |
| MATH Level 5 | 90.9% | — |
| FrontierMath (Feb 2025 set) | 5.9% | — |

## Knowledge

- Grok-3 mini: 46.4 (#81)
- MiMo-V2-Omni: 40.5 (#118)

| Benchmark | Grok-3 mini | MiMo-V2-Omni |
|---|---|---|
| LMArena Expert | 1395 | 1449 |
| GPQA Diamond | 76.3% | — |
| MMLU-Pro | 79.9% | — |
| Confabulations | 10.8% | — |
| GPQA (HELM) | 67.5% | — |

## Multimodal

- Grok-3 mini: —
- MiMo-V2-Omni: 38.6 (#63)

| Benchmark | Grok-3 mini | MiMo-V2-Omni |
|---|---|---|
| LMArena Vision | — | 1228 |

## Multilingual

- Grok-3 mini: 48.1 (#145)
- MiMo-V2-Omni: 51.8 (#102)

| Benchmark | Grok-3 mini | MiMo-V2-Omni |
|---|---|---|
| LMArena Non-English | 1352 | 1404 |
| LMArena Chinese | 1387 | 1465 |
| LMArena French | 1357 | 1447 |
| LMArena German | 1349 | 1399 |
| LMArena Japanese | 1342 | 1317 |
| LMArena Korean | 1335 | 1355 |
| LMArena Russian | 1353 | 1412 |
| LMArena Spanish | 1381 | 1434 |

## Instruction Following

- Grok-3 mini: 78.5 (#9)
- MiMo-V2-Omni: 75.2 (#66)

| Benchmark | Grok-3 mini | MiMo-V2-Omni |
|---|---|---|
| LMArena Instruction Following | 1357 | 1428 |
| IFEval | 95.1% | — |

## Long Context

- Grok-3 mini: 41.0 (#147)
- MiMo-V2-Omni: 44.1 (#76)

| Benchmark | Grok-3 mini | MiMo-V2-Omni |
|---|---|---|
| LMArena Longer Query | 1372 | 1442 |
| Fiction.LiveBench | 66.7% | — |

## Writing & Preference

- Grok-3 mini: 52.5 (#169)
- MiMo-V2-Omni: 61.4 (#87)

| Benchmark | Grok-3 mini | MiMo-V2-Omni |
|---|---|---|
| LMArena Text | 1370 | 1423 |
| 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-Omni?

MiMo-V2-Omni is the stronger model overall, scoring 43.6 to 41.2 on the Noometry Index.

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

MiMo-V2-Omni scores higher on coding benchmarks: 43.3 versus 40.8 in the Noometry coding category.

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

17 benchmarks have published results for both models. Grok-3 mini has 35 scored results on Noometry and MiMo-V2-Omni has 18.