Model comparison
MiMo-V2-Pro vs Muse Spark 1.2
Muse Spark 1.2 is the stronger model overall, scoring 50.3 to 43.0 on the Noometry Index. MiMo-V2-Pro costs 3.7× less per token, which makes it the better buy when Muse Spark 1.2's lead doesn't matter for your workload.
Last verified . 16 shared benchmarks.
MetaSummary
- They share 16 benchmarks with published results for both. MiMo-V2-Pro scores higher in 0 categories and Muse Spark 1.2 in 8 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Muse Spark 1.2 leads 51.3 to 22.1.
- The biggest single-benchmark swing is NYT Connections (extended): 25.8% for MiMo-V2-Pro and 79.2% for Muse Spark 1.2.
- MiMo-V2-Pro is cheaper at $0.43 / $0.87 per million input/output tokens, against $1.25 / $4.25 for Muse Spark 1.2.
Side by side
| MiMo-V2-Pro | Muse Spark 1.2 | |
|---|---|---|
| Provider | Xiaomi | Meta |
| Noometry Index | 43.0 | 50.3 |
| Released | 2026-03-18 | 2026-08-05 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | 1.05M |
| Max output | 131K | 131K |
| Input $ / M tokens | $0.43 | $1.25 |
| Output $ / M tokens | $0.87 | $4.25 |
| Results tracked | 23 | 31 |
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Category by category
Coding Muse Spark 1.2 leads
MiMo-V2-Pro: 43.8 (#83), Muse Spark 1.2: 49.2 (#51)
| Benchmark | MiMo-V2-Pro | Muse Spark 1.2 |
|---|---|---|
| LMArena WebDev | 1433 | 1533 |
| LMArena Coding | 1476 | 1495 |
| DeepSWE | — | 54.9% |
| FrontierSWE | — | 12% |
| SciCode | — | 56.4% |
| WeirdML | — | 60.3% |
| ALE-Bench | 785.17 | — |
Agentic & Tool Use Not comparable
MiMo-V2-Pro: —, Muse Spark 1.2: 29.4 (#87)
| Benchmark | MiMo-V2-Pro | Muse Spark 1.2 |
|---|---|---|
| APEX-Agents | — | 36.4% |
| GDP.pdf | — | 16% |
Reasoning Muse Spark 1.2 leads
MiMo-V2-Pro: 22.1 (#206), Muse Spark 1.2: 51.3 (#34)
| Benchmark | MiMo-V2-Pro | Muse Spark 1.2 |
|---|---|---|
| NYT Connections (extended) | 25.8% | 79.2% |
| LMArena Hard Prompts | 1457 | 1486 |
| SimpleBench | — | 74.5% |
| CritPt | — | 17.7% |
| Thematic Generalization | 45.9% | — |
| DTBench | — | 94.7% |
| LMCA | — | 48.4% |
| Epoch Capabilities Index | — | 154.87 |
Math Muse Spark 1.2 leads
MiMo-V2-Pro: 39.5 (#102), Muse Spark 1.2: 46.4 (#70)
| Benchmark | MiMo-V2-Pro | Muse Spark 1.2 |
|---|---|---|
| LMArena Math | 1447 | 1471 |
| ProofBench | — | 43% |
Knowledge Muse Spark 1.2 leads
MiMo-V2-Pro: 41.4 (#111), Muse Spark 1.2: 54.1 (#53)
| Benchmark | MiMo-V2-Pro | Muse Spark 1.2 |
|---|---|---|
| LMArena Expert | 1478 | 1480 |
| SimpleQA Verified | — | 60.3% |
Multimodal Not comparable
MiMo-V2-Pro: —, Muse Spark 1.2: 43.4 (#25)
| Benchmark | MiMo-V2-Pro | Muse Spark 1.2 |
|---|---|---|
| LMArena Vision | — | 1305 |
Multilingual Muse Spark 1.2 leads
MiMo-V2-Pro: 52.7 (#81), Muse Spark 1.2: 57.1 (#11)
| Benchmark | MiMo-V2-Pro | Muse Spark 1.2 |
|---|---|---|
| LMArena Non-English | 1416 | 1478 |
| LMArena Chinese | 1456 | 1511 |
| LMArena French | 1469 | 1513 |
| LMArena Russian | 1427 | 1487 |
| LMArena Spanish | 1457 | 1498 |
| LMArena German | 1417 | — |
| LMArena Japanese | 1366 | — |
| LMArena Korean | 1400 | — |
Instruction Following Too close to call
MiMo-V2-Pro: 76.0 (#49), Muse Spark 1.2: 76.7 (#36)
| Benchmark | MiMo-V2-Pro | Muse Spark 1.2 |
|---|---|---|
| LMArena Instruction Following | 1445 | 1461 |
Long Context Muse Spark 1.2 leads
MiMo-V2-Pro: 41.5 (#138), Muse Spark 1.2: 45.2 (#48)
| Benchmark | MiMo-V2-Pro | Muse Spark 1.2 |
|---|---|---|
| LMArena Longer Query | 1455 | 1475 |
| CL-bench | 15.7% | — |
| CL-bench Life | 6.9% | — |
Writing & Preference Muse Spark 1.2 leads
MiMo-V2-Pro: 62.8 (#70), Muse Spark 1.2: 72.3 (#14)
| Benchmark | MiMo-V2-Pro | Muse Spark 1.2 |
|---|---|---|
| LMArena Text | 1436 | 1482 |
| LMArena Creative Writing | 1415 | 1449 |
| LMArena Multi-Turn | 1456 | 1494 |
| EQ-Bench Creative Writing | — | 1840 |
Frequently asked questions
Is MiMo-V2-Pro better than Muse Spark 1.2?
Muse Spark 1.2 is the stronger model overall, scoring 50.3 to 43.0 on the Noometry Index. MiMo-V2-Pro costs 3.7× less per token, which makes it the better buy when Muse Spark 1.2's lead doesn't matter for your workload.
Which is cheaper, MiMo-V2-Pro or Muse Spark 1.2?
MiMo-V2-Pro is cheaper. It lists at $0.43 per million input tokens and $0.87 per million output tokens; Muse Spark 1.2 lists at $1.25 and $4.25.
Is MiMo-V2-Pro or Muse Spark 1.2 better for coding?
Muse Spark 1.2 scores higher on coding benchmarks: 49.2 versus 43.8 in the Noometry coding category.
Which has the bigger context window?
Both accept 1.05M tokens.
How many benchmarks do MiMo-V2-Pro and Muse Spark 1.2 share?
16 benchmarks have published results for both models. MiMo-V2-Pro has 23 scored results on Noometry and Muse Spark 1.2 has 31.