Model comparison
C4ai Aya Expanse 8b vs MiMo-V2-Flash
MiMo-V2-Flash is the stronger model overall, scoring 40.8 to 34.3 on the Noometry Index.
Last verified . 14 shared benchmarks.
CohereSummary
- They share 14 benchmarks with published results for both. C4ai Aya Expanse 8b scores higher in 0 categories and MiMo-V2-Flash in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where MiMo-V2-Flash leads 59.9 to 39.2.
- MiMo-V2-Flash accepts more context: 262K tokens versus 8K.
Side by side
| C4ai Aya Expanse 8b | MiMo-V2-Flash | |
|---|---|---|
| Provider | Cohere | Xiaomi |
| Noometry Index | 34.3 | 40.8 |
| Released | 2024-10-24 | 2025-12-16 |
| Weights | Open | Open |
| Context window | 8K | 262K |
| Max output | 4K | 66K |
| Input $ / M tokens | — | $0.14 |
| Output $ / M tokens | — | $0.28 |
| Results tracked | 15 | 21 |
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Category by category
Coding MiMo-V2-Flash leads
C4ai Aya Expanse 8b: 33.2 (#252), MiMo-V2-Flash: 35.8 (#205)
| Benchmark | C4ai Aya Expanse 8b | MiMo-V2-Flash |
|---|---|---|
| LMArena Coding | 1161 | 1443 |
| LMArena WebDev | — | 1330 |
| SciCode | — | 25.9% |
| ALE-Bench | — | 737.95 |
Reasoning MiMo-V2-Flash leads
C4ai Aya Expanse 8b: 21.4 (#198), MiMo-V2-Flash: 24.1 (#155)
| Benchmark | C4ai Aya Expanse 8b | MiMo-V2-Flash |
|---|---|---|
| LMArena Hard Prompts | 1156 | 1420 |
| CritPt | — | 0% |
Math MiMo-V2-Flash leads
C4ai Aya Expanse 8b: 30.8 (#204), MiMo-V2-Flash: 35.6 (#141)
| Benchmark | C4ai Aya Expanse 8b | MiMo-V2-Flash |
|---|---|---|
| LMArena Math | 1168 | 1396 |
Knowledge MiMo-V2-Flash leads
C4ai Aya Expanse 8b: 33.0 (#197), MiMo-V2-Flash: 39.1 (#126)
| Benchmark | C4ai Aya Expanse 8b | MiMo-V2-Flash |
|---|---|---|
| LMArena Expert | 1153 | 1425 |
| Vectara Hallucination Rate | 9.5% | — |
Multilingual MiMo-V2-Flash leads
C4ai Aya Expanse 8b: 36.3 (#237), MiMo-V2-Flash: 51.1 (#109)
| Benchmark | C4ai Aya Expanse 8b | MiMo-V2-Flash |
|---|---|---|
| LMArena Non-English | 1180 | 1391 |
| LMArena Chinese | 1181 | 1463 |
| LMArena German | 1188 | 1395 |
| LMArena Japanese | 1120 | 1324 |
| LMArena Russian | 1197 | 1387 |
| LMArena French | — | 1429 |
| LMArena Korean | — | 1358 |
| LMArena Spanish | — | 1420 |
Instruction Following MiMo-V2-Flash leads
C4ai Aya Expanse 8b: 60.4 (#248), MiMo-V2-Flash: 73.7 (#115)
| Benchmark | C4ai Aya Expanse 8b | MiMo-V2-Flash |
|---|---|---|
| LMArena Instruction Following | 1155 | 1392 |
Long Context MiMo-V2-Flash leads
C4ai Aya Expanse 8b: 36.1 (#231), MiMo-V2-Flash: 43.0 (#106)
| Benchmark | C4ai Aya Expanse 8b | MiMo-V2-Flash |
|---|---|---|
| LMArena Longer Query | 1192 | 1409 |
Writing & Preference MiMo-V2-Flash leads
C4ai Aya Expanse 8b: 39.2 (#245), MiMo-V2-Flash: 59.9 (#101)
| Benchmark | C4ai Aya Expanse 8b | MiMo-V2-Flash |
|---|---|---|
| LMArena Text | 1185 | 1411 |
| LMArena Creative Writing | 1168 | 1375 |
| LMArena Multi-Turn | 1160 | 1404 |
Frequently asked questions
Is C4ai Aya Expanse 8b better than MiMo-V2-Flash?
MiMo-V2-Flash is the stronger model overall, scoring 40.8 to 34.3 on the Noometry Index.
Is C4ai Aya Expanse 8b or MiMo-V2-Flash better for coding?
MiMo-V2-Flash scores higher on coding benchmarks: 35.8 versus 33.2 in the Noometry coding category.
Which has the bigger context window?
MiMo-V2-Flash does, with 262K tokens against 8K.
How many benchmarks do C4ai Aya Expanse 8b and MiMo-V2-Flash share?
14 benchmarks have published results for both models. C4ai Aya Expanse 8b has 15 scored results on Noometry and MiMo-V2-Flash has 21.