Model comparison
MiMo-V2-Flash vs Muse Spark
Muse Spark is the stronger model overall, scoring 50.6 to 41.3 on the Noometry Index.
Last verified . 18 shared benchmarks.
MetaSummary
- They share 18 benchmarks with published results for both. MiMo-V2-Flash scores higher in 0 categories and Muse Spark in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Muse Spark leads 65.7 to 39.7.
- The biggest single-benchmark swing is SciCode: 25.9% for MiMo-V2-Flash and 51.5% for Muse Spark.
- MiMo-V2-Flash has downloadable open weights; the other is API-only.
Side by side
| MiMo-V2-Flash | Muse Spark | |
|---|---|---|
| Provider | Xiaomi | Meta |
| Noometry Index | 41.3 | 50.6 |
| Released | 2025-12-16 | 2026-04-08 |
| Weights | Open | Proprietary |
| Context window | 262K | — |
| Max output | 66K | — |
| Input $ / M tokens | $0.14 | — |
| Output $ / M tokens | $0.28 | — |
| Results tracked | 21 | 27 |
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Category by category
Coding Muse Spark leads
MiMo-V2-Flash: 36.1 (#211), Muse Spark: 46.2 (#69)
| Benchmark | MiMo-V2-Flash | Muse Spark |
|---|---|---|
| SciCode | 25.9% | 51.5% |
| LMArena Coding | 1443 | 1481 |
| LMArena WebDev | 1330 | — |
| ALE-Bench | 737.95 | — |
Reasoning Muse Spark leads
MiMo-V2-Flash: 24.9 (#157), Muse Spark: 35.9 (#67)
| Benchmark | MiMo-V2-Flash | Muse Spark |
|---|---|---|
| CritPt | 0% | 11.3% |
| LMArena Hard Prompts | 1420 | 1474 |
| Epoch Capabilities Index | — | 152.04 |
Math Muse Spark leads
MiMo-V2-Flash: 38.3 (#139), Muse Spark: 47.8 (#66)
| Benchmark | MiMo-V2-Flash | Muse Spark |
|---|---|---|
| LMArena Math | 1396 | 1455 |
| OTIS Mock AIME 2024-2025 | — | 88.9% |
| ProofBench | — | 17% |
| FrontierMath (Feb 2025 set) | — | 39% |
| FrontierMath Tier 4 (v1) | — | 14.6% |
Knowledge Muse Spark leads
MiMo-V2-Flash: 39.7 (#131), Muse Spark: 65.7 (#13)
| Benchmark | MiMo-V2-Flash | Muse Spark |
|---|---|---|
| LMArena Expert | 1425 | 1457 |
| GPQA Diamond | — | 89.8% |
| Humanity's Last Exam | — | 40.6% |
Multimodal Not comparable
MiMo-V2-Flash: —, Muse Spark: 43.4 (#24)
| Benchmark | MiMo-V2-Flash | Muse Spark |
|---|---|---|
| LMArena Vision | — | 1306 |
| LMArena Document | — | 1444 |
Multilingual Muse Spark leads
MiMo-V2-Flash: 51.0 (#113), Muse Spark: 56.1 (#24)
| Benchmark | MiMo-V2-Flash | Muse Spark |
|---|---|---|
| LMArena Non-English | 1392 | 1464 |
| LMArena Chinese | 1462 | 1509 |
| LMArena French | 1429 | 1497 |
| LMArena German | 1395 | 1497 |
| LMArena Korean | 1358 | 1459 |
| LMArena Russian | 1387 | 1466 |
| LMArena Spanish | 1420 | 1472 |
| LMArena Japanese | 1325 | — |
Instruction Following Muse Spark leads
MiMo-V2-Flash: 73.5 (#120), Muse Spark: 75.9 (#51)
| Benchmark | MiMo-V2-Flash | Muse Spark |
|---|---|---|
| LMArena Instruction Following | 1392 | 1442 |
Long Context Muse Spark leads
MiMo-V2-Flash: 43.0 (#110), Muse Spark: 44.4 (#69)
| Benchmark | MiMo-V2-Flash | Muse Spark |
|---|---|---|
| LMArena Longer Query | 1409 | 1451 |
Writing & Preference Muse Spark leads
MiMo-V2-Flash: 59.7 (#106), Muse Spark: 66.0 (#39)
| Benchmark | MiMo-V2-Flash | Muse Spark |
|---|---|---|
| LMArena Text | 1411 | 1474 |
| LMArena Creative Writing | 1375 | 1459 |
| LMArena Multi-Turn | 1404 | 1477 |
Frequently asked questions
Is MiMo-V2-Flash better than Muse Spark?
Muse Spark is the stronger model overall, scoring 50.6 to 41.3 on the Noometry Index.
Is MiMo-V2-Flash or Muse Spark better for coding?
Muse Spark scores higher on coding benchmarks: 46.2 versus 36.1 in the Noometry coding category.
How many benchmarks do MiMo-V2-Flash and Muse Spark share?
18 benchmarks have published results for both models. MiMo-V2-Flash has 21 scored results on Noometry and Muse Spark has 27.