Model comparison
Grok-3 mini vs MiMo-V2-Omni
MiMo-V2-Omni is the stronger model overall, scoring 42.9 to 41.0 on the Noometry Index.
Last verified . 17 shared benchmarks.
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 28.6 to 13.8.
Side by side
| Grok-3 mini | MiMo-V2-Omni | |
|---|---|---|
| Provider | xAI | Xiaomi |
| Noometry Index | 41.0 | 42.9 |
| Released | 2025-04-09 | 2026-03-18 |
| Weights | Proprietary | Proprietary |
| Context window | — | 262K |
| Max output | — | 131K |
| Input $ / M tokens | — | $0.14 |
| Output $ / M tokens | — | $0.28 |
| Results tracked | 35 | 18 |
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Category by category
Coding MiMo-V2-Omni leads
Grok-3 mini: 40.4 (#126), MiMo-V2-Omni: 42.7 (#87)
| Benchmark | Grok-3 mini | MiMo-V2-Omni |
|---|---|---|
| LMArena Coding | 1380 | 1467 |
| Aider Polyglot | 49.3% | — |
| WeirdML | 42.6% | — |
Reasoning MiMo-V2-Omni leads
Grok-3 mini: 13.8 (#323), MiMo-V2-Omni: 28.6 (#86)
| Benchmark | Grok-3 mini | MiMo-V2-Omni |
|---|---|---|
| LMArena Hard Prompts | 1374 | 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 leads
Grok-3 mini: 40.3 (#78), MiMo-V2-Omni: 36.4 (#112)
| Benchmark | Grok-3 mini | MiMo-V2-Omni |
|---|---|---|
| LMArena Math | 1386 | 1432 |
| 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 leads
Grok-3 mini: 46.3 (#75), MiMo-V2-Omni: 39.9 (#114)
| 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 Not comparable
Grok-3 mini: —, MiMo-V2-Omni: 37.9 (#62)
| Benchmark | Grok-3 mini | MiMo-V2-Omni |
|---|---|---|
| LMArena Vision | — | 1228 |
Multilingual MiMo-V2-Omni leads
Grok-3 mini: 48.3 (#141), MiMo-V2-Omni: 52.0 (#97)
| Benchmark | Grok-3 mini | MiMo-V2-Omni |
|---|---|---|
| LMArena Non-English | 1352 | 1404 |
| LMArena Chinese | 1387 | 1469 |
| LMArena French | 1357 | 1448 |
| LMArena German | 1350 | 1398 |
| LMArena Japanese | 1343 | 1318 |
| LMArena Korean | 1336 | 1355 |
| LMArena Russian | 1352 | 1412 |
| LMArena Spanish | 1379 | 1432 |
Instruction Following Grok-3 mini leads
Grok-3 mini: 78.7 (#8), MiMo-V2-Omni: 75.4 (#62)
| Benchmark | Grok-3 mini | MiMo-V2-Omni |
|---|---|---|
| LMArena Instruction Following | 1356 | 1428 |
| IFEval | 95.1% | — |
Long Context MiMo-V2-Omni leads
Grok-3 mini: 41.0 (#142), MiMo-V2-Omni: 44.1 (#72)
| Benchmark | Grok-3 mini | MiMo-V2-Omni |
|---|---|---|
| LMArena Longer Query | 1372 | 1442 |
| Fiction.LiveBench | 66.7% | — |
Writing & Preference MiMo-V2-Omni leads
Grok-3 mini: 52.7 (#163), MiMo-V2-Omni: 61.6 (#83)
| Benchmark | Grok-3 mini | MiMo-V2-Omni |
|---|---|---|
| LMArena Text | 1370 | 1424 |
| LMArena Creative Writing | 1342 | 1393 |
| LMArena Multi-Turn | 1355 | 1446 |
| Short-Story Creative Writing | 73.5% | — |
| WildBench | 65.1% | — |
Frequently asked questions
Is Grok-3 mini better than MiMo-V2-Omni?
MiMo-V2-Omni is the stronger model overall, scoring 42.9 to 41.0 on the Noometry Index.
Is Grok-3 mini or MiMo-V2-Omni better for coding?
MiMo-V2-Omni scores higher on coding benchmarks: 42.7 versus 40.4 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.