Model comparison
MiMo-V2-Pro vs Solar Pro4
MiMo-V2-Pro and Solar Pro4 score almost the same on the Noometry Index (43.0 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-Pro scores higher in 6 categories and Solar Pro4 in 2 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Solar Pro4 leads 28.5 to 22.1.
- Both cost about the same: $0.43 input and $0.87 output per million tokens.
- MiMo-V2-Pro accepts more context: 1.05M tokens versus 524K.
Side by side
| MiMo-V2-Pro | Solar Pro4 | |
|---|---|---|
| Provider | Xiaomi | Upstage |
| Noometry Index | 43.0 | 42.1 |
| Released | 2026-03-18 | 2026-08-06 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | 524K |
| Max output | 131K | 131K |
| Input $ / M tokens | $0.43 | $0.30 |
| Output $ / M tokens | $0.87 | $1.20 |
| Results tracked | 23 | 18 |
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Category by category
Coding MiMo-V2-Pro leads
MiMo-V2-Pro: 43.8 (#83), Solar Pro4: 40.1 (#149)
| Benchmark | MiMo-V2-Pro | Solar Pro4 |
|---|---|---|
| LMArena WebDev | 1433 | 1371 |
| LMArena Coding | 1476 | 1437 |
| ALE-Bench | 785.17 | — |
Reasoning Solar Pro4 leads
MiMo-V2-Pro: 22.1 (#206), Solar Pro4: 28.5 (#104)
| Benchmark | MiMo-V2-Pro | Solar Pro4 |
|---|---|---|
| LMArena Hard Prompts | 1457 | 1399 |
| NYT Connections (extended) | 25.8% | — |
| Thematic Generalization | 45.9% | — |
Math Too close to call
MiMo-V2-Pro: 39.5 (#102), Solar Pro4: 38.8 (#128)
| Benchmark | MiMo-V2-Pro | Solar Pro4 |
|---|---|---|
| LMArena Math | 1447 | 1416 |
Knowledge MiMo-V2-Pro leads
MiMo-V2-Pro: 41.4 (#111), Solar Pro4: 39.8 (#129)
| Benchmark | MiMo-V2-Pro | Solar Pro4 |
|---|---|---|
| LMArena Expert | 1478 | 1427 |
Multilingual MiMo-V2-Pro leads
MiMo-V2-Pro: 52.7 (#81), Solar Pro4: 48.7 (#139)
| Benchmark | MiMo-V2-Pro | Solar Pro4 |
|---|---|---|
| LMArena Non-English | 1416 | 1361 |
| LMArena Chinese | 1456 | 1415 |
| LMArena French | 1469 | 1397 |
| LMArena German | 1417 | 1364 |
| LMArena Japanese | 1366 | 1309 |
| LMArena Korean | 1400 | 1382 |
| LMArena Russian | 1427 | 1360 |
| LMArena Spanish | 1457 | 1401 |
Instruction Following MiMo-V2-Pro leads
MiMo-V2-Pro: 76.0 (#49), Solar Pro4: 72.7 (#132)
| Benchmark | MiMo-V2-Pro | Solar Pro4 |
|---|---|---|
| LMArena Instruction Following | 1445 | 1377 |
Long Context Too close to call
MiMo-V2-Pro: 41.5 (#138), Solar Pro4: 42.1 (#130)
| Benchmark | MiMo-V2-Pro | Solar Pro4 |
|---|---|---|
| LMArena Longer Query | 1455 | 1381 |
| CL-bench | 15.7% | — |
| CL-bench Life | 6.9% | — |
Writing & Preference MiMo-V2-Pro leads
MiMo-V2-Pro: 62.8 (#70), Solar Pro4: 56.5 (#138)
| Benchmark | MiMo-V2-Pro | Solar Pro4 |
|---|---|---|
| LMArena Text | 1436 | 1386 |
| LMArena Creative Writing | 1415 | 1316 |
| LMArena Multi-Turn | 1456 | 1385 |
Frequently asked questions
Is MiMo-V2-Pro better than Solar Pro4?
MiMo-V2-Pro and Solar Pro4 score almost the same on the Noometry Index (43.0 vs 42.1), so choose on price, context window or the category you care about most.
Which is cheaper, MiMo-V2-Pro or Solar Pro4?
Solar Pro4 is cheaper. It lists at $0.30 per million input tokens and $1.20 per million output tokens; MiMo-V2-Pro lists at $0.43 and $0.87.
Is MiMo-V2-Pro or Solar Pro4 better for coding?
MiMo-V2-Pro scores higher on coding benchmarks: 43.8 versus 40.1 in the Noometry coding category.
Which has the bigger context window?
MiMo-V2-Pro does, with 1.05M tokens against 524K.
How many benchmarks do MiMo-V2-Pro and Solar Pro4 share?
18 benchmarks have published results for both models. MiMo-V2-Pro has 23 scored results on Noometry and Solar Pro4 has 18.