# Grok 4.1 vs Step 5 Preview

> Step 5 Preview is the stronger model overall, scoring 43.8 to 40.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/grok-4-1-vs-step-5-preview
- Last updated: 2026-10-10
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Grok 4.1 scores higher in 0 categories and Step 5 Preview in 2 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in coding, where Step 5 Preview leads 50.6 to 33.4.

## Snapshot

| | Grok 4.1 | Step 5 Preview |
|---|---|---|
| Provider | xAI | StepFun |
| Noometry Index | 40.8 | 43.8 |
| Rank | 135 | 78 |
| Context | — | 1.02M |
| Input $/M | — | $1 |
| Output $/M | — | $2.70 |
| Weights | Proprietary | Proprietary |

## Coding

- Grok 4.1: 33.4 (#246)
- Step 5 Preview: 50.6 (#40)

| Benchmark | Grok 4.1 | Step 5 Preview |
|---|---|---|
| LMArena WebDev | 1214 | 1569 |
| SciCode | — | 58.9% |
| LMArena Coding | 1445 | — |

## Agentic & Tool Use

- Grok 4.1: 33.8 (#47)
- Step 5 Preview: —

| Benchmark | Grok 4.1 | Step 5 Preview |
|---|---|---|
| Cybench | 39% | — |

## Reasoning

- Grok 4.1: 28.3 (#91)
- Step 5 Preview: 38.0 (#58)

| Benchmark | Grok 4.1 | Step 5 Preview |
|---|---|---|
| CritPt | — | 20.9% |
| LMArena Hard Prompts | 1436 | — |

## Math

- Grok 4.1: 36.2 (#124)
- Step 5 Preview: —

| Benchmark | Grok 4.1 | Step 5 Preview |
|---|---|---|
| LMArena Math | 1422 | — |

## Knowledge

- Grok 4.1: 38.9 (#129)
- Step 5 Preview: —

| Benchmark | Grok 4.1 | Step 5 Preview |
|---|---|---|
| LMArena Expert | 1417 | — |

## Multilingual

- Grok 4.1: 53.6 (#64)
- Step 5 Preview: —

| Benchmark | Grok 4.1 | Step 5 Preview |
|---|---|---|
| LMArena Non-English | 1425 | — |
| LMArena Chinese | 1464 | — |
| LMArena French | 1448 | — |
| LMArena German | 1447 | — |
| LMArena Japanese | 1396 | — |
| LMArena Korean | 1407 | — |
| LMArena Russian | 1434 | — |
| LMArena Spanish | 1438 | — |

## Instruction Following

- Grok 4.1: 74.0 (#106)
- Step 5 Preview: —

| Benchmark | Grok 4.1 | Step 5 Preview |
|---|---|---|
| LMArena Instruction Following | 1400 | — |

## Long Context

- Grok 4.1: 43.2 (#96)
- Step 5 Preview: —

| Benchmark | Grok 4.1 | Step 5 Preview |
|---|---|---|
| LMArena Longer Query | 1416 | — |

## Writing & Preference

- Grok 4.1: 62.6 (#71)
- Step 5 Preview: —

| Benchmark | Grok 4.1 | Step 5 Preview |
|---|---|---|
| LMArena Text | 1437 | — |
| LMArena Creative Writing | 1411 | — |
| LMArena Multi-Turn | 1438 | — |

## FAQ

### Is Grok 4.1 better than Step 5 Preview?

Step 5 Preview is the stronger model overall, scoring 43.8 to 40.8 on the Noometry Index.

### Is Grok 4.1 or Step 5 Preview better for coding?

Step 5 Preview scores higher on coding benchmarks: 50.6 versus 33.4 in the Noometry coding category.

### How many benchmarks do Grok 4.1 and Step 5 Preview share?

1 benchmark has published results for both models. Grok 4.1 has 19 scored results on Noometry and Step 5 Preview has 3.