Model comparison
MiMo-V2.5-Pro vs MiMo-V2.6-Flash
MiMo-V2.6-Flash is the stronger model overall, scoring 48.5 to 45.2 on the Noometry Index.
Last verified . 18 shared benchmarks.
Summary
- They share 18 benchmarks with published results for both. MiMo-V2.5-Pro scores higher in 5 categories and MiMo-V2.6-Flash in 3 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in math, where MiMo-V2.6-Flash leads 51.9 to 40.0.
- The biggest single-benchmark swing is ProofBench: 22% for MiMo-V2.5-Pro and 63% for MiMo-V2.6-Flash.
- MiMo-V2.6-Flash is cheaper at $0.14 / $0.28 per million input/output tokens, against $0.43 / $0.87 for MiMo-V2.5-Pro.
Side by side
| MiMo-V2.5-Pro | MiMo-V2.6-Flash | |
|---|---|---|
| Provider | Xiaomi | Xiaomi |
| Noometry Index | 45.2 | 48.5 |
| Released | 2026-04-22 | 2026-09-21 |
| Weights | Open | Open |
| Context window | 1.05M | 1.05M |
| Max output | 131K | 131K |
| Input $ / M tokens | $0.43 | $0.14 |
| Output $ / M tokens | $0.87 | $0.28 |
| Results tracked | 27 | 19 |
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Category by category
Coding MiMo-V2.6-Flash leads
MiMo-V2.5-Pro: 47.4 (#60), MiMo-V2.6-Flash: 53.4 (#30)
| Benchmark | MiMo-V2.5-Pro | MiMo-V2.6-Flash |
|---|---|---|
| LMArena WebDev | 1479 | 1637 |
| SciCode | 50.2% | 51.3% |
| LMArena Coding | 1503 | 1504 |
| ALE-Bench | 899.8 | — |
Reasoning MiMo-V2.6-Flash leads
MiMo-V2.5-Pro: 26.8 (#130), MiMo-V2.6-Flash: 36.5 (#66)
| Benchmark | MiMo-V2.5-Pro | MiMo-V2.6-Flash |
|---|---|---|
| CritPt | 4% | 12% |
| LMArena Hard Prompts | 1488 | 1482 |
| NYT Connections (extended) | 34.4% | — |
| DTBench | 84.5% | — |
| LMCA | 29.5% | — |
Math MiMo-V2.6-Flash leads
MiMo-V2.5-Pro: 40.0 (#96), MiMo-V2.6-Flash: 51.9 (#52)
| Benchmark | MiMo-V2.5-Pro | MiMo-V2.6-Flash |
|---|---|---|
| ProofBench | 22% | 63% |
| LMArena Math | 1481 | 1468 |
Knowledge Too close to call
MiMo-V2.5-Pro: 42.2 (#98), MiMo-V2.6-Flash: 42.2 (#99)
| Benchmark | MiMo-V2.5-Pro | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Expert | 1503 | 1501 |
Multimodal Not comparable
MiMo-V2.5-Pro: —, MiMo-V2.6-Flash: 40.5 (#47)
| Benchmark | MiMo-V2.5-Pro | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Vision | — | 1259 |
Multilingual MiMo-V2.5-Pro leads
MiMo-V2.5-Pro: 55.1 (#34), MiMo-V2.6-Flash: 54.0 (#51)
| Benchmark | MiMo-V2.5-Pro | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Non-English | 1449 | 1434 |
| LMArena Chinese | 1507 | 1511 |
| LMArena French | 1488 | 1475 |
| LMArena Russian | 1450 | 1409 |
| LMArena Spanish | 1471 | 1456 |
| LMArena German | 1458 | — |
| LMArena Japanese | 1412 | — |
| LMArena Korean | 1437 | — |
Instruction Following Too close to call
MiMo-V2.5-Pro: 77.5 (#21), MiMo-V2.6-Flash: 76.8 (#35)
| Benchmark | MiMo-V2.5-Pro | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Instruction Following | 1477 | 1463 |
Long Context Too close to call
MiMo-V2.5-Pro: 45.4 (#37), MiMo-V2.6-Flash: 44.8 (#57)
| Benchmark | MiMo-V2.5-Pro | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Longer Query | 1483 | 1463 |
Writing & Preference MiMo-V2.5-Pro leads
MiMo-V2.5-Pro: 65.3 (#49), MiMo-V2.6-Flash: 63.1 (#67)
| Benchmark | MiMo-V2.5-Pro | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Text | 1465 | 1455 |
| LMArena Creative Writing | 1440 | 1400 |
| LMArena Multi-Turn | 1477 | 1451 |
| EQ-Bench Creative Writing | 1493 | — |
| EQ-Bench 4 | 1208 | — |
Frequently asked questions
Is MiMo-V2.5-Pro better than MiMo-V2.6-Flash?
MiMo-V2.6-Flash is the stronger model overall, scoring 48.5 to 45.2 on the Noometry Index.
Which is cheaper, MiMo-V2.5-Pro or MiMo-V2.6-Flash?
MiMo-V2.6-Flash is cheaper. It lists at $0.14 per million input tokens and $0.28 per million output tokens; MiMo-V2.5-Pro lists at $0.43 and $0.87.
Is MiMo-V2.5-Pro or MiMo-V2.6-Flash better for coding?
MiMo-V2.6-Flash scores higher on coding benchmarks: 53.4 versus 47.4 in the Noometry coding category.
Which has the bigger context window?
Both accept 1.05M tokens.
How many benchmarks do MiMo-V2.5-Pro and MiMo-V2.6-Flash share?
18 benchmarks have published results for both models. MiMo-V2.5-Pro has 27 scored results on Noometry and MiMo-V2.6-Flash has 19.