# MiMo-V2.6-Pro vs Solar Pro4

> MiMo-V2.6-Pro is the stronger model overall, scoring 50.3 to 42.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mimo-v2-6-pro-vs-solar-pro4
- Last updated: 2026-10-11
- Shared benchmarks: 13

## Summary

- They share 13 benchmarks with published results for both. MiMo-V2.6-Pro scores higher in 8 categories and Solar Pro4 in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where MiMo-V2.6-Pro leads 54.5 to 38.8.
- Both cost about the same: $0.43 input and $0.87 output per million tokens.
- MiMo-V2.6-Pro accepts more context: 1.05M tokens versus 524K.
- MiMo-V2.6-Pro has downloadable open weights; the other is API-only.

## Snapshot

| | MiMo-V2.6-Pro | Solar Pro4 |
|---|---|---|
| Provider | Xiaomi | Upstage |
| Noometry Index | 50.3 | 42.1 |
| Rank | 49 | 121 |
| Context | 1.05M | 524K |
| Input $/M | $0.43 | $0.30 |
| Output $/M | $0.87 | $1.20 |
| Weights | Open | Proprietary |

## Coding

- MiMo-V2.6-Pro: 55.5 (#23)
- Solar Pro4: 40.1 (#149)

| Benchmark | MiMo-V2.6-Pro | Solar Pro4 |
|---|---|---|
| LMArena WebDev | 1629 | 1371 |
| LMArena Coding | 1534 | 1437 |
| SciCode | 60.9% | — |
| ALE-Bench | 1,158 | — |

## Agentic & Tool Use

- MiMo-V2.6-Pro: 37.5 (#35)
- Solar Pro4: —

| Benchmark | MiMo-V2.6-Pro | Solar Pro4 |
|---|---|---|
| APEX-Agents | 59.5% | — |

## Reasoning

- MiMo-V2.6-Pro: 43.1 (#50)
- Solar Pro4: 28.5 (#104)

| Benchmark | MiMo-V2.6-Pro | Solar Pro4 |
|---|---|---|
| LMArena Hard Prompts | 1512 | 1399 |
| CritPt | 26.6% | — |

## Math

- MiMo-V2.6-Pro: 54.5 (#45)
- Solar Pro4: 38.8 (#128)

| Benchmark | MiMo-V2.6-Pro | Solar Pro4 |
|---|---|---|
| LMArena Math | 1494 | 1416 |
| ProofBench | 70% | — |

## Knowledge

- MiMo-V2.6-Pro: 43.5 (#92)
- Solar Pro4: 39.8 (#129)

| Benchmark | MiMo-V2.6-Pro | Solar Pro4 |
|---|---|---|
| LMArena Expert | 1543 | 1427 |

## Multimodal

- MiMo-V2.6-Pro: 40.8 (#43)
- Solar Pro4: —

| Benchmark | MiMo-V2.6-Pro | Solar Pro4 |
|---|---|---|
| LMArena Vision | 1264 | — |

## Multilingual

- MiMo-V2.6-Pro: 56.9 (#14)
- Solar Pro4: 48.7 (#139)

| Benchmark | MiMo-V2.6-Pro | Solar Pro4 |
|---|---|---|
| LMArena Non-English | 1474 | 1361 |
| LMArena Chinese | 1529 | 1415 |
| LMArena Russian | 1480 | 1360 |
| LMArena French | — | 1397 |
| LMArena German | — | 1364 |
| LMArena Japanese | — | 1309 |
| LMArena Korean | — | 1382 |
| LMArena Spanish | — | 1401 |

## Instruction Following

- MiMo-V2.6-Pro: 78.2 (#12)
- Solar Pro4: 72.7 (#132)

| Benchmark | MiMo-V2.6-Pro | Solar Pro4 |
|---|---|---|
| LMArena Instruction Following | 1493 | 1377 |

## Long Context

- MiMo-V2.6-Pro: 46.0 (#27)
- Solar Pro4: 42.1 (#130)

| Benchmark | MiMo-V2.6-Pro | Solar Pro4 |
|---|---|---|
| LMArena Longer Query | 1501 | 1381 |

## Writing & Preference

- MiMo-V2.6-Pro: 66.8 (#33)
- Solar Pro4: 56.5 (#138)

| Benchmark | MiMo-V2.6-Pro | Solar Pro4 |
|---|---|---|
| LMArena Text | 1492 | 1386 |
| LMArena Creative Writing | 1468 | 1316 |
| LMArena Multi-Turn | 1464 | 1385 |

## FAQ

### Is MiMo-V2.6-Pro better than Solar Pro4?

MiMo-V2.6-Pro is the stronger model overall, scoring 50.3 to 42.1 on the Noometry Index.

### Which is cheaper, MiMo-V2.6-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-V2.6-Pro lists at $0.43 and $0.87.

### Is MiMo-V2.6-Pro or Solar Pro4 better for coding?

MiMo-V2.6-Pro scores higher on coding benchmarks: 55.5 versus 40.1 in the Noometry coding category.

### Which has the bigger context window?

MiMo-V2.6-Pro does, with 1.05M tokens against 524K.

### How many benchmarks do MiMo-V2.6-Pro and Solar Pro4 share?

13 benchmarks have published results for both models. MiMo-V2.6-Pro has 19 scored results on Noometry and Solar Pro4 has 18.