Model comparison
MiMo-V2-Flash vs Solar Pro4
MiMo-V2-Flash and Solar Pro4 score almost the same on the Noometry Index (41.3 vs 42.1), so choose on price, context window or the category you care about most.
Last verified . 18 shared benchmarks.
UpstageSummary
- They share 18 benchmarks with published results for both. MiMo-V2-Flash scores higher in 4 categories and Solar Pro4 in 4 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in coding, where Solar Pro4 leads 40.1 to 36.1.
- MiMo-V2-Flash is cheaper at $0.14 / $0.28 per million input/output tokens, against $0.30 / $1.20 for Solar Pro4.
- Solar Pro4 accepts more context: 524K tokens versus 262K.
- MiMo-V2-Flash has downloadable open weights; the other is API-only.
Side by side
| MiMo-V2-Flash | Solar Pro4 | |
|---|---|---|
| Provider | Xiaomi | Upstage |
| Noometry Index | 41.3 | 42.1 |
| Released | 2025-12-16 | 2026-08-06 |
| Weights | Open | Proprietary |
| Context window | 262K | 524K |
| Max output | 66K | 131K |
| Input $ / M tokens | $0.14 | $0.30 |
| Output $ / M tokens | $0.28 | $1.20 |
| Results tracked | 21 | 18 |
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Category by category
Coding Solar Pro4 leads
MiMo-V2-Flash: 36.1 (#211), Solar Pro4: 40.1 (#149)
| Benchmark | MiMo-V2-Flash | Solar Pro4 |
|---|---|---|
| LMArena WebDev | 1330 | 1371 |
| LMArena Coding | 1443 | 1437 |
| SciCode | 25.9% | — |
| ALE-Bench | 737.95 | — |
Reasoning Solar Pro4 leads
MiMo-V2-Flash: 24.9 (#157), Solar Pro4: 28.5 (#104)
| Benchmark | MiMo-V2-Flash | Solar Pro4 |
|---|---|---|
| LMArena Hard Prompts | 1420 | 1399 |
| CritPt | 0% | — |
Math Too close to call
MiMo-V2-Flash: 38.3 (#139), Solar Pro4: 38.8 (#128)
| Benchmark | MiMo-V2-Flash | Solar Pro4 |
|---|---|---|
| LMArena Math | 1396 | 1416 |
Knowledge Too close to call
MiMo-V2-Flash: 39.7 (#131), Solar Pro4: 39.8 (#129)
| Benchmark | MiMo-V2-Flash | Solar Pro4 |
|---|---|---|
| LMArena Expert | 1425 | 1427 |
Multilingual MiMo-V2-Flash leads
MiMo-V2-Flash: 51.0 (#113), Solar Pro4: 48.7 (#139)
| Benchmark | MiMo-V2-Flash | Solar Pro4 |
|---|---|---|
| LMArena Non-English | 1392 | 1361 |
| LMArena Chinese | 1462 | 1415 |
| LMArena French | 1429 | 1397 |
| LMArena German | 1395 | 1364 |
| LMArena Japanese | 1325 | 1309 |
| LMArena Korean | 1358 | 1382 |
| LMArena Russian | 1387 | 1360 |
| LMArena Spanish | 1420 | 1401 |
Instruction Following Too close to call
MiMo-V2-Flash: 73.5 (#120), Solar Pro4: 72.7 (#132)
| Benchmark | MiMo-V2-Flash | Solar Pro4 |
|---|---|---|
| LMArena Instruction Following | 1392 | 1377 |
Long Context Too close to call
MiMo-V2-Flash: 43.0 (#110), Solar Pro4: 42.1 (#130)
| Benchmark | MiMo-V2-Flash | Solar Pro4 |
|---|---|---|
| LMArena Longer Query | 1409 | 1381 |
Writing & Preference MiMo-V2-Flash leads
MiMo-V2-Flash: 59.7 (#106), Solar Pro4: 56.5 (#138)
| Benchmark | MiMo-V2-Flash | Solar Pro4 |
|---|---|---|
| LMArena Text | 1411 | 1386 |
| LMArena Creative Writing | 1375 | 1316 |
| LMArena Multi-Turn | 1404 | 1385 |
Frequently asked questions
Is MiMo-V2-Flash better than Solar Pro4?
MiMo-V2-Flash and Solar Pro4 score almost the same on the Noometry Index (41.3 vs 42.1), so choose on price, context window or the category you care about most.
Which is cheaper, MiMo-V2-Flash or Solar Pro4?
MiMo-V2-Flash is cheaper. It lists at $0.14 per million input tokens and $0.28 per million output tokens; Solar Pro4 lists at $0.30 and $1.20.
Is MiMo-V2-Flash or Solar Pro4 better for coding?
Solar Pro4 scores higher on coding benchmarks: 40.1 versus 36.1 in the Noometry coding category.
Which has the bigger context window?
Solar Pro4 does, with 524K tokens against 262K.
How many benchmarks do MiMo-V2-Flash and Solar Pro4 share?
18 benchmarks have published results for both models. MiMo-V2-Flash has 21 scored results on Noometry and Solar Pro4 has 18.