Model comparison
MiMo-V2.5 vs MiMo-V2.6-Flash
MiMo-V2.6-Flash is the stronger model overall, scoring 48.5 to 43.4 on the Noometry Index.
Last verified . 19 shared benchmarks.
Summary
- They share 19 benchmarks with published results for both. MiMo-V2.5 scores higher in 0 categories and MiMo-V2.6-Flash in 9 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in math, where MiMo-V2.6-Flash leads 51.9 to 36.8.
- The biggest single-benchmark swing is ProofBench: 16% for MiMo-V2.5 and 63% for MiMo-V2.6-Flash.
- Both cost about the same: $0.14 input and $0.28 output per million tokens.
Side by side
| MiMo-V2.5 | MiMo-V2.6-Flash | |
|---|---|---|
| Provider | Xiaomi | Xiaomi |
| Noometry Index | 43.4 | 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 | $0.14 | $0.14 |
| Output $ / M tokens | $0.28 | $0.28 |
| Results tracked | 23 | 19 |
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Category by category
Coding MiMo-V2.6-Flash leads
MiMo-V2.5: 43.9 (#81), MiMo-V2.6-Flash: 53.4 (#30)
| Benchmark | MiMo-V2.5 | MiMo-V2.6-Flash |
|---|---|---|
| LMArena WebDev | 1438 | 1637 |
| SciCode | 43.1% | 51.3% |
| LMArena Coding | 1469 | 1504 |
| ALE-Bench | 513.95 | — |
Reasoning MiMo-V2.6-Flash leads
MiMo-V2.5: 28.6 (#101), MiMo-V2.6-Flash: 36.5 (#66)
| Benchmark | MiMo-V2.5 | MiMo-V2.6-Flash |
|---|---|---|
| CritPt | 3.7% | 12% |
| LMArena Hard Prompts | 1450 | 1482 |
Math MiMo-V2.6-Flash leads
MiMo-V2.5: 36.8 (#163), MiMo-V2.6-Flash: 51.9 (#52)
| Benchmark | MiMo-V2.5 | MiMo-V2.6-Flash |
|---|---|---|
| ProofBench | 16% | 63% |
| LMArena Math | 1436 | 1468 |
Knowledge MiMo-V2.6-Flash leads
MiMo-V2.5: 40.8 (#115), MiMo-V2.6-Flash: 42.2 (#99)
| Benchmark | MiMo-V2.5 | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Expert | 1460 | 1501 |
Multimodal Too close to call
MiMo-V2.5: 39.8 (#54), MiMo-V2.6-Flash: 40.5 (#47)
| Benchmark | MiMo-V2.5 | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Vision | 1247 | 1259 |
Multilingual MiMo-V2.6-Flash leads
MiMo-V2.5: 51.9 (#99), MiMo-V2.6-Flash: 54.0 (#51)
| Benchmark | MiMo-V2.5 | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Non-English | 1404 | 1434 |
| LMArena Chinese | 1468 | 1511 |
| LMArena French | 1447 | 1475 |
| LMArena Russian | 1395 | 1409 |
| LMArena Spanish | 1416 | 1456 |
| LMArena German | 1421 | — |
| LMArena Japanese | 1306 | — |
| LMArena Korean | 1363 | — |
Instruction Following MiMo-V2.6-Flash leads
MiMo-V2.5: 75.5 (#60), MiMo-V2.6-Flash: 76.8 (#35)
| Benchmark | MiMo-V2.5 | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Instruction Following | 1434 | 1463 |
Long Context Too close to call
MiMo-V2.5: 44.2 (#73), MiMo-V2.6-Flash: 44.8 (#57)
| Benchmark | MiMo-V2.5 | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Longer Query | 1445 | 1463 |
Writing & Preference MiMo-V2.6-Flash leads
MiMo-V2.5: 61.6 (#86), MiMo-V2.6-Flash: 63.1 (#67)
| Benchmark | MiMo-V2.5 | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Text | 1428 | 1455 |
| LMArena Creative Writing | 1393 | 1400 |
| LMArena Multi-Turn | 1445 | 1451 |
Frequently asked questions
Is MiMo-V2.5 better than MiMo-V2.6-Flash?
MiMo-V2.6-Flash is the stronger model overall, scoring 48.5 to 43.4 on the Noometry Index.
Which is cheaper, MiMo-V2.5 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 lists at $0.14 and $0.28.
Is MiMo-V2.5 or MiMo-V2.6-Flash better for coding?
MiMo-V2.6-Flash scores higher on coding benchmarks: 53.4 versus 43.9 in the Noometry coding category.
Which has the bigger context window?
Both accept 1.05M tokens.
How many benchmarks do MiMo-V2.5 and MiMo-V2.6-Flash share?
19 benchmarks have published results for both models. MiMo-V2.5 has 23 scored results on Noometry and MiMo-V2.6-Flash has 19.