Model comparison
MiMo-V2.6-Flash vs Mistral Small 3.1
MiMo-V2.6-Flash is the stronger model overall, scoring 48.5 to 31.7 on the Noometry Index.
Last verified . 15 shared benchmarks.
Mistral AISummary
- They share 15 benchmarks with published results for both. MiMo-V2.6-Flash scores higher in 9 categories and Mistral Small 3.1 in 0 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in math, where MiMo-V2.6-Flash leads 51.9 to 14.7.
- MiMo-V2.6-Flash is cheaper at $0.14 / $0.28 per million input/output tokens, against $0.35 / $0.56 for Mistral Small 3.1.
- MiMo-V2.6-Flash accepts more context: 1.05M tokens versus 128K.
Side by side
| MiMo-V2.6-Flash | Mistral Small 3.1 | |
|---|---|---|
| Provider | Xiaomi | Mistral AI |
| Noometry Index | 48.5 | 31.7 |
| Released | 2026-09-21 | 2025-03-17 |
| Weights | Open | Open |
| Context window | 1.05M | 128K |
| Max output | 131K | 102K |
| Input $ / M tokens | $0.14 | $0.35 |
| Output $ / M tokens | $0.28 | $0.56 |
| Results tracked | 19 | 28 |
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Category by category
Coding MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 53.4 (#30), Mistral Small 3.1: 38.3 (#179)
| Benchmark | MiMo-V2.6-Flash | Mistral Small 3.1 |
|---|---|---|
| LMArena Coding | 1504 | 1309 |
| LMArena WebDev | 1637 | — |
| SciCode | 51.3% | — |
Reasoning MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 36.5 (#66), Mistral Small 3.1: 19.7 (#254)
| Benchmark | MiMo-V2.6-Flash | Mistral Small 3.1 |
|---|---|---|
| LMArena Hard Prompts | 1482 | 1278 |
| CritPt | 12% | — |
| Chess Puzzles | — | 1% |
| Epoch Capabilities Index | — | 127.48 |
Math MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 51.9 (#52), Mistral Small 3.1: 14.7 (#301)
| Benchmark | MiMo-V2.6-Flash | Mistral Small 3.1 |
|---|---|---|
| LMArena Math | 1468 | 1262 |
| OTIS Mock AIME 2024-2025 | — | 3.9% |
| ProofBench | 63% | — |
| Omni-MATH | — | 24.8% |
Knowledge MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 42.2 (#99), Mistral Small 3.1: 22.6 (#271)
| Benchmark | MiMo-V2.6-Flash | Mistral Small 3.1 |
|---|---|---|
| LMArena Expert | 1501 | 1257 |
| GPQA Diamond | — | 41.9% |
| MMLU-Pro | — | 61% |
| GPQA (HELM) | — | 39.2% |
Multimodal MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 40.5 (#47), Mistral Small 3.1: 33.2 (#99)
| Benchmark | MiMo-V2.6-Flash | Mistral Small 3.1 |
|---|---|---|
| LMArena Vision | 1259 | 1136 |
Multilingual MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 54.0 (#51), Mistral Small 3.1: 41.2 (#209)
| Benchmark | MiMo-V2.6-Flash | Mistral Small 3.1 |
|---|---|---|
| LMArena Non-English | 1434 | 1255 |
| LMArena Chinese | 1511 | 1253 |
| LMArena French | 1475 | 1273 |
| LMArena Russian | 1409 | 1263 |
| LMArena Spanish | 1456 | 1283 |
| LMArena German | — | 1266 |
| LMArena Japanese | — | 1208 |
| LMArena Korean | — | 1206 |
Instruction Following MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 76.8 (#35), Mistral Small 3.1: 63.6 (#230)
| Benchmark | MiMo-V2.6-Flash | Mistral Small 3.1 |
|---|---|---|
| LMArena Instruction Following | 1463 | 1264 |
| IFEval | — | 75% |
Long Context MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 44.8 (#57), Mistral Small 3.1: 39.5 (#178)
| Benchmark | MiMo-V2.6-Flash | Mistral Small 3.1 |
|---|---|---|
| LMArena Longer Query | 1463 | 1299 |
Writing & Preference MiMo-V2.6-Flash leads
MiMo-V2.6-Flash: 63.1 (#67), Mistral Small 3.1: 37.0 (#259)
| Benchmark | MiMo-V2.6-Flash | Mistral Small 3.1 |
|---|---|---|
| LMArena Text | 1455 | 1277 |
| LMArena Creative Writing | 1400 | 1253 |
| LMArena Multi-Turn | 1451 | 1270 |
| EQ-Bench Creative Writing | — | 761 |
| WildBench | — | 78.8% |
Frequently asked questions
Is MiMo-V2.6-Flash better than Mistral Small 3.1?
MiMo-V2.6-Flash is the stronger model overall, scoring 48.5 to 31.7 on the Noometry Index.
Which is cheaper, MiMo-V2.6-Flash or Mistral Small 3.1?
MiMo-V2.6-Flash is cheaper. It lists at $0.14 per million input tokens and $0.28 per million output tokens; Mistral Small 3.1 lists at $0.35 and $0.56.
Is MiMo-V2.6-Flash or Mistral Small 3.1 better for coding?
MiMo-V2.6-Flash scores higher on coding benchmarks: 53.4 versus 38.3 in the Noometry coding category.
Which has the bigger context window?
MiMo-V2.6-Flash does, with 1.05M tokens against 128K.
How many benchmarks do MiMo-V2.6-Flash and Mistral Small 3.1 share?
15 benchmarks have published results for both models. MiMo-V2.6-Flash has 19 scored results on Noometry and Mistral Small 3.1 has 28.