Model comparison
MiMo-V2-Flash vs o1-mini
MiMo-V2-Flash is the stronger model overall, scoring 40.8 to 33.7 on the Noometry Index.
Last verified . 17 shared benchmarks.
Summary
- They share 17 benchmarks with published results for both. MiMo-V2-Flash scores higher in 8 categories and o1-mini in 0 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where MiMo-V2-Flash leads 24.1 to 8.9.
- MiMo-V2-Flash has downloadable open weights; the other is API-only.
Side by side
| MiMo-V2-Flash | o1-mini | |
|---|---|---|
| Provider | Xiaomi | OpenAI |
| Noometry Index | 40.8 | 33.7 |
| Released | 2025-12-16 | 2024-09-12 |
| Weights | Open | Proprietary |
| Context window | 262K | — |
| Max output | 66K | — |
| Input $ / M tokens | $0.14 | — |
| Output $ / M tokens | $0.28 | — |
| Results tracked | 21 | 39 |
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Category by category
Coding Too close to call
MiMo-V2-Flash: 35.8 (#205), o1-mini: 35.1 (#218)
| Benchmark | MiMo-V2-Flash | o1-mini |
|---|---|---|
| LMArena Coding | 1443 | 1362 |
| Aider Polyglot | — | 32.9% |
| LMArena WebDev | 1330 | — |
| SciCode | 25.9% | — |
| WeirdML | — | 36.3% |
| LiveBench Coding | — | 48% |
| ALE-Bench | 737.95 | — |
| HumanEval+ | — | 89% |
| MBPP+ | — | 78.8% |
Agentic & Tool Use Not comparable
MiMo-V2-Flash: —, o1-mini: 24.3 (#112)
| Benchmark | MiMo-V2-Flash | o1-mini |
|---|---|---|
| Cybench | — | 10% |
Reasoning MiMo-V2-Flash leads
MiMo-V2-Flash: 24.1 (#155), o1-mini: 8.9 (#340)
| Benchmark | MiMo-V2-Flash | o1-mini |
|---|---|---|
| LMArena Hard Prompts | 1420 | 1333 |
| ARC-AGI-2 | — | 0.8% |
| SimpleBench | — | 18.1% |
| ARC-AGI-1 | — | 14% |
| CritPt | 0% | — |
| LiveBench Reasoning | — | 72.3% |
| LiveBench Data Analysis | — | 57.9% |
| Epoch Capabilities Index | — | 135.82 |
| LiveBench | — | 57.8% |
Math MiMo-V2-Flash leads
MiMo-V2-Flash: 35.6 (#141), o1-mini: 33.7 (#168)
| Benchmark | MiMo-V2-Flash | o1-mini |
|---|---|---|
| LMArena Math | 1396 | 1358 |
| OTIS Mock AIME 2024-2025 | — | 46.9% |
| LiveBench Math | — | 62% |
| MATH Level 5 | — | 89.2% |
| FrontierMath (Feb 2025 set) | — | 1.7% |
Knowledge MiMo-V2-Flash leads
MiMo-V2-Flash: 39.1 (#126), o1-mini: 34.8 (#180)
| Benchmark | MiMo-V2-Flash | o1-mini |
|---|---|---|
| LMArena Expert | 1425 | 1316 |
| GPQA Diamond | — | 62.4% |
| Confabulations | — | 18.6% |
Multilingual MiMo-V2-Flash leads
MiMo-V2-Flash: 51.1 (#109), o1-mini: 43.8 (#177)
| Benchmark | MiMo-V2-Flash | o1-mini |
|---|---|---|
| LMArena Non-English | 1391 | 1289 |
| LMArena Chinese | 1463 | 1314 |
| LMArena French | 1429 | 1292 |
| LMArena German | 1395 | 1278 |
| LMArena Japanese | 1324 | 1245 |
| LMArena Korean | 1358 | 1223 |
| LMArena Russian | 1387 | 1283 |
| LMArena Spanish | 1420 | 1302 |
Instruction Following MiMo-V2-Flash leads
MiMo-V2-Flash: 73.7 (#115), o1-mini: 67.0 (#200)
| Benchmark | MiMo-V2-Flash | o1-mini |
|---|---|---|
| LMArena Instruction Following | 1392 | 1304 |
| LiveBench Instruction Following | — | 65.4% |
Long Context MiMo-V2-Flash leads
MiMo-V2-Flash: 43.0 (#106), o1-mini: 40.1 (#156)
| Benchmark | MiMo-V2-Flash | o1-mini |
|---|---|---|
| LMArena Longer Query | 1409 | 1321 |
Writing & Preference MiMo-V2-Flash leads
MiMo-V2-Flash: 59.9 (#101), o1-mini: 48.6 (#196)
| Benchmark | MiMo-V2-Flash | o1-mini |
|---|---|---|
| LMArena Text | 1411 | 1317 |
| LMArena Creative Writing | 1375 | 1244 |
| LMArena Multi-Turn | 1404 | 1314 |
| Short-Story Creative Writing | — | 64.9% |
| LiveBench Language | — | 40.9% |
Frequently asked questions
Is MiMo-V2-Flash better than o1-mini?
MiMo-V2-Flash is the stronger model overall, scoring 40.8 to 33.7 on the Noometry Index.
Is MiMo-V2-Flash or o1-mini better for coding?
They score almost the same on coding (35.8 vs 35.1); test both on your own repository before choosing.
How many benchmarks do MiMo-V2-Flash and o1-mini share?
17 benchmarks have published results for both models. MiMo-V2-Flash has 21 scored results on Noometry and o1-mini has 39.