# Grok 4.1 vs Solar Pro4

> Grok 4.1 and Solar Pro4 score almost the same on the Noometry Index (40.8 vs 41.5), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/grok-4-1-vs-solar-pro4
- Last updated: 2026-10-10
- Shared benchmarks: 18

## Summary

- They share 18 benchmarks with published results for both. Grok 4.1 scores higher in 6 categories and Solar Pro4 in 2 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in coding, where Solar Pro4 leads 39.9 to 33.4.

## Snapshot

| | Grok 4.1 | Solar Pro4 |
|---|---|---|
| Provider | xAI | Upstage |
| Noometry Index | 40.8 | 41.5 |
| Rank | 135 | 123 |
| Context | — | 524K |
| Input $/M | — | $0.30 |
| Output $/M | — | $1.20 |
| Weights | Proprietary | Proprietary |

## Coding

- Grok 4.1: 33.4 (#246)
- Solar Pro4: 39.9 (#135)

| Benchmark | Grok 4.1 | Solar Pro4 |
|---|---|---|
| LMArena WebDev | 1214 | 1371 |
| LMArena Coding | 1445 | 1439 |

## Agentic & Tool Use

- Grok 4.1: 33.8 (#47)
- Solar Pro4: —

| Benchmark | Grok 4.1 | Solar Pro4 |
|---|---|---|
| Cybench | 39% | — |

## Reasoning

- Grok 4.1: 28.3 (#91)
- Solar Pro4: 27.3 (#107)

| Benchmark | Grok 4.1 | Solar Pro4 |
|---|---|---|
| LMArena Hard Prompts | 1436 | 1398 |

## Math

- Grok 4.1: 36.2 (#124)
- Solar Pro4: 36.1 (#129)

| Benchmark | Grok 4.1 | Solar Pro4 |
|---|---|---|
| LMArena Math | 1422 | 1418 |

## Knowledge

- Grok 4.1: 38.9 (#129)
- Solar Pro4: 39.0 (#128)

| Benchmark | Grok 4.1 | Solar Pro4 |
|---|---|---|
| LMArena Expert | 1417 | 1421 |

## Multilingual

- Grok 4.1: 53.6 (#64)
- Solar Pro4: 49.0 (#134)

| Benchmark | Grok 4.1 | Solar Pro4 |
|---|---|---|
| LMArena Non-English | 1425 | 1362 |
| LMArena Chinese | 1464 | 1417 |
| LMArena French | 1448 | 1403 |
| LMArena German | 1447 | 1351 |
| LMArena Japanese | 1396 | 1300 |
| LMArena Korean | 1407 | 1383 |
| LMArena Russian | 1434 | 1360 |
| LMArena Spanish | 1438 | 1408 |

## Instruction Following

- Grok 4.1: 74.0 (#106)
- Solar Pro4: 72.8 (#128)

| Benchmark | Grok 4.1 | Solar Pro4 |
|---|---|---|
| LMArena Instruction Following | 1400 | 1376 |

## Long Context

- Grok 4.1: 43.2 (#96)
- Solar Pro4: 42.0 (#125)

| Benchmark | Grok 4.1 | Solar Pro4 |
|---|---|---|
| LMArena Longer Query | 1416 | 1379 |

## Writing & Preference

- Grok 4.1: 62.6 (#71)
- Solar Pro4: 56.7 (#133)

| Benchmark | Grok 4.1 | Solar Pro4 |
|---|---|---|
| LMArena Text | 1437 | 1386 |
| LMArena Creative Writing | 1411 | 1313 |
| LMArena Multi-Turn | 1438 | 1391 |

## FAQ

### Is Grok 4.1 better than Solar Pro4?

Grok 4.1 and Solar Pro4 score almost the same on the Noometry Index (40.8 vs 41.5), so choose on price, context window or the category you care about most.

### Is Grok 4.1 or Solar Pro4 better for coding?

Solar Pro4 scores higher on coding benchmarks: 39.9 versus 33.4 in the Noometry coding category.

### How many benchmarks do Grok 4.1 and Solar Pro4 share?

18 benchmarks have published results for both models. Grok 4.1 has 19 scored results on Noometry and Solar Pro4 has 18.