Model comparison
Grok-2 (Dec 2024) vs MiMo-V2-Flash
MiMo-V2-Flash is the stronger model overall, scoring 41.3 to 33.7 on the Noometry Index.
Last verified . 17 shared benchmarks.
Summary
- They share 17 benchmarks with published results for both. Grok-2 (Dec 2024) scores higher in 0 categories and MiMo-V2-Flash in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where MiMo-V2-Flash leads 38.3 to 20.8.
- MiMo-V2-Flash has downloadable open weights; the other is API-only.
Side by side
| Grok-2 (Dec 2024) | MiMo-V2-Flash | |
|---|---|---|
| Provider | xAI | Xiaomi |
| Noometry Index | 33.7 | 41.3 |
| Released | 2024-08-13 | 2025-12-16 |
| Weights | Proprietary | Open |
| Context window | — | 262K |
| Max output | — | 66K |
| Input $ / M tokens | — | $0.14 |
| Output $ / M tokens | — | $0.28 |
| Results tracked | 34 | 21 |
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Category by category
Coding MiMo-V2-Flash leads
Grok-2 (Dec 2024): 33.3 (#258), MiMo-V2-Flash: 36.1 (#211)
| Benchmark | Grok-2 (Dec 2024) | MiMo-V2-Flash |
|---|---|---|
| LMArena Coding | 1287 | 1443 |
| LMArena WebDev | — | 1330 |
| SciCode | — | 25.9% |
| WeirdML | 22.2% | — |
| LiveBench Coding | 46.4% | — |
| ALE-Bench | — | 737.95 |
Reasoning MiMo-V2-Flash leads
Grok-2 (Dec 2024): 16.9 (#299), MiMo-V2-Flash: 24.9 (#157)
| Benchmark | Grok-2 (Dec 2024) | MiMo-V2-Flash |
|---|---|---|
| LMArena Hard Prompts | 1272 | 1420 |
| SimpleBench | 22.7% | — |
| CritPt | — | 0% |
| LiveBench Reasoning | 54.8% | — |
| DTBench | 65.2% | — |
| LiveBench Data Analysis | 54.5% | — |
| Epoch Capabilities Index | 130.48 | — |
| LiveBench | 54.3% | — |
Math MiMo-V2-Flash leads
Grok-2 (Dec 2024): 20.8 (#284), MiMo-V2-Flash: 38.3 (#139)
| Benchmark | Grok-2 (Dec 2024) | MiMo-V2-Flash |
|---|---|---|
| LMArena Math | 1283 | 1396 |
| OTIS Mock AIME 2024-2025 | 11.5% | — |
| LiveBench Math | 54.9% | — |
| MATH Level 5 | 63.5% | — |
| FrontierMath (Feb 2025 set) | 0.7% | — |
Knowledge MiMo-V2-Flash leads
Grok-2 (Dec 2024): 29.8 (#233), MiMo-V2-Flash: 39.7 (#131)
| Benchmark | Grok-2 (Dec 2024) | MiMo-V2-Flash |
|---|---|---|
| LMArena Expert | 1254 | 1425 |
| GPQA Diamond | 53.8% | — |
| Confabulations | 20.1% | — |
Multilingual MiMo-V2-Flash leads
Grok-2 (Dec 2024): 43.1 (#188), MiMo-V2-Flash: 51.0 (#113)
| Benchmark | Grok-2 (Dec 2024) | MiMo-V2-Flash |
|---|---|---|
| LMArena Non-English | 1282 | 1392 |
| LMArena Chinese | 1289 | 1462 |
| LMArena French | 1318 | 1429 |
| LMArena German | 1287 | 1395 |
| LMArena Japanese | 1244 | 1325 |
| LMArena Korean | 1237 | 1358 |
| LMArena Russian | 1286 | 1387 |
| LMArena Spanish | 1281 | 1420 |
Instruction Following MiMo-V2-Flash leads
Grok-2 (Dec 2024): 66.9 (#202), MiMo-V2-Flash: 73.5 (#120)
| Benchmark | Grok-2 (Dec 2024) | MiMo-V2-Flash |
|---|---|---|
| LMArena Instruction Following | 1270 | 1392 |
| LiveBench Instruction Following | 69.6% | — |
Long Context MiMo-V2-Flash leads
Grok-2 (Dec 2024): 38.8 (#190), MiMo-V2-Flash: 43.0 (#110)
| Benchmark | Grok-2 (Dec 2024) | MiMo-V2-Flash |
|---|---|---|
| LMArena Longer Query | 1276 | 1409 |
Writing & Preference MiMo-V2-Flash leads
Grok-2 (Dec 2024): 48.6 (#198), MiMo-V2-Flash: 59.7 (#106)
| Benchmark | Grok-2 (Dec 2024) | MiMo-V2-Flash |
|---|---|---|
| LMArena Text | 1305 | 1411 |
| LMArena Creative Writing | 1284 | 1375 |
| LMArena Multi-Turn | 1290 | 1404 |
| Short-Story Creative Writing | 63.6% | — |
| LiveBench Language | 45.6% | — |
Frequently asked questions
Is Grok-2 (Dec 2024) better than MiMo-V2-Flash?
MiMo-V2-Flash is the stronger model overall, scoring 41.3 to 33.7 on the Noometry Index.
Is Grok-2 (Dec 2024) or MiMo-V2-Flash better for coding?
MiMo-V2-Flash scores higher on coding benchmarks: 36.1 versus 33.3 in the Noometry coding category.
How many benchmarks do Grok-2 (Dec 2024) and MiMo-V2-Flash share?
17 benchmarks have published results for both models. Grok-2 (Dec 2024) has 34 scored results on Noometry and MiMo-V2-Flash has 21.