Model comparison
MiMo-V2.5-Pro vs Molmo 2 8b
MiMo-V2.5-Pro is the stronger model overall, scoring 45.2 to 39.1 on the Noometry Index.
Last verified . 4 shared benchmarks.
Allen Institute for AI (Ai2)Summary
- They share 4 benchmarks with published results for both. MiMo-V2.5-Pro scores higher in 4 categories and Molmo 2 8b in 0 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where MiMo-V2.5-Pro leads 65.3 to 49.4.
Side by side
| MiMo-V2.5-Pro | Molmo 2 8b | |
|---|---|---|
| Provider | Xiaomi | Allen Institute for AI (Ai2) |
| Noometry Index | 45.2 | 39.1 |
| Released | 2026-04-22 | — |
| Weights | Open | Open |
| Context window | 1.05M | — |
| Max output | 131K | — |
| Input $ / M tokens | $0.43 | — |
| Output $ / M tokens | $0.87 | — |
| Results tracked | 27 | 5 |
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Category by category
Coding Not comparable
MiMo-V2.5-Pro: 47.4 (#60), Molmo 2 8b: —
| Benchmark | MiMo-V2.5-Pro | Molmo 2 8b |
|---|---|---|
| LMArena WebDev | 1479 | — |
| SciCode | 50.2% | — |
| LMArena Coding | 1503 | — |
| ALE-Bench | 899.8 | — |
Reasoning MiMo-V2.5-Pro leads
MiMo-V2.5-Pro: 26.8 (#130), Molmo 2 8b: 25.6 (#146)
| Benchmark | MiMo-V2.5-Pro | Molmo 2 8b |
|---|---|---|
| LMArena Hard Prompts | 1488 | 1287 |
| NYT Connections (extended) | 34.4% | — |
| CritPt | 4% | — |
| DTBench | 84.5% | — |
| LMCA | 29.5% | — |
Math Not comparable
MiMo-V2.5-Pro: 40.0 (#96), Molmo 2 8b: —
| Benchmark | MiMo-V2.5-Pro | Molmo 2 8b |
|---|---|---|
| ProofBench | 22% | — |
| LMArena Math | 1481 | — |
Knowledge Not comparable
MiMo-V2.5-Pro: 42.2 (#98), Molmo 2 8b: —
| Benchmark | MiMo-V2.5-Pro | Molmo 2 8b |
|---|---|---|
| LMArena Expert | 1503 | — |
Multimodal Not comparable
MiMo-V2.5-Pro: —, Molmo 2 8b: 30.2 (#112)
| Benchmark | MiMo-V2.5-Pro | Molmo 2 8b |
|---|---|---|
| LMArena Vision | — | 1081 |
Multilingual MiMo-V2.5-Pro leads
MiMo-V2.5-Pro: 55.1 (#34), Molmo 2 8b: 42.7 (#190)
| Benchmark | MiMo-V2.5-Pro | Molmo 2 8b |
|---|---|---|
| LMArena Non-English | 1449 | 1276 |
| LMArena Chinese | 1507 | — |
| LMArena French | 1488 | — |
| LMArena German | 1458 | — |
| LMArena Japanese | 1412 | — |
| LMArena Korean | 1437 | — |
| LMArena Russian | 1450 | — |
| LMArena Spanish | 1471 | — |
Instruction Following MiMo-V2.5-Pro leads
MiMo-V2.5-Pro: 77.5 (#21), Molmo 2 8b: 67.0 (#201)
| Benchmark | MiMo-V2.5-Pro | Molmo 2 8b |
|---|---|---|
| LMArena Instruction Following | 1477 | 1270 |
Long Context Not comparable
MiMo-V2.5-Pro: 45.4 (#37), Molmo 2 8b: —
| Benchmark | MiMo-V2.5-Pro | Molmo 2 8b |
|---|---|---|
| LMArena Longer Query | 1483 | — |
Writing & Preference MiMo-V2.5-Pro leads
MiMo-V2.5-Pro: 65.3 (#49), Molmo 2 8b: 49.4 (#191)
| Benchmark | MiMo-V2.5-Pro | Molmo 2 8b |
|---|---|---|
| LMArena Text | 1465 | 1288 |
| LMArena Creative Writing | 1440 | — |
| EQ-Bench Creative Writing | 1493 | — |
| EQ-Bench 4 | 1208 | — |
| LMArena Multi-Turn | 1477 | — |
Frequently asked questions
Is MiMo-V2.5-Pro better than Molmo 2 8b?
MiMo-V2.5-Pro is the stronger model overall, scoring 45.2 to 39.1 on the Noometry Index.
How many benchmarks do MiMo-V2.5-Pro and Molmo 2 8b share?
4 benchmarks have published results for both models. MiMo-V2.5-Pro has 27 scored results on Noometry and Molmo 2 8b has 5.