# Grok-2 (Dec 2024) vs Step 5 Preview

> Step 5 Preview is the stronger model overall, scoring 47.9 to 33.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/grok-2-vs-step-5-preview
- Last updated: 2026-10-10
- Shared benchmarks: 13

## Summary

- They share 13 benchmarks with published results for both. Grok-2 (Dec 2024) scores higher in 0 categories and Step 5 Preview in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Step 5 Preview leads 46.1 to 20.8.

## Snapshot

| | Grok-2 (Dec 2024) | Step 5 Preview |
|---|---|---|
| Provider | xAI | StepFun |
| Noometry Index | 33.7 | 47.9 |
| Rank | 239 | 58 |
| Context | — | 1.02M |
| Input $/M | — | $1 |
| Output $/M | — | $2.70 |
| Weights | Proprietary | Proprietary |

## Coding

- Grok-2 (Dec 2024): 33.3 (#258)
- Step 5 Preview: 51.8 (#36)

| Benchmark | Grok-2 (Dec 2024) | Step 5 Preview |
|---|---|---|
| LMArena Coding | 1287 | 1480 |
| LMArena WebDev | — | 1564 |
| SciCode | — | 58.9% |
| WeirdML | 22.2% | — |
| LiveBench Coding | 46.4% | — |

## Reasoning

- Grok-2 (Dec 2024): 16.9 (#299)
- Step 5 Preview: 40.0 (#57)

| Benchmark | Grok-2 (Dec 2024) | Step 5 Preview |
|---|---|---|
| LMArena Hard Prompts | 1272 | 1465 |
| SimpleBench | 22.7% | — |
| CritPt | — | 20.9% |
| LiveBench Reasoning | 54.8% | — |
| DTBench | 65.2% | — |
| LiveBench Data Analysis | 54.5% | — |
| Epoch Capabilities Index | 130.48 | — |
| LiveBench | 54.3% | — |

## Math

- Grok-2 (Dec 2024): 20.8 (#284)
- Step 5 Preview: 46.1 (#72)

| Benchmark | Grok-2 (Dec 2024) | Step 5 Preview |
|---|---|---|
| LMArena Math | 1283 | 1470 |
| OTIS Mock AIME 2024-2025 | 11.5% | — |
| ProofBench | — | 42% |
| LiveBench Math | 54.9% | — |
| MATH Level 5 | 63.5% | — |
| FrontierMath (Feb 2025 set) | 0.7% | — |

## Knowledge

- Grok-2 (Dec 2024): 29.8 (#233)
- Step 5 Preview: 41.2 (#112)

| Benchmark | Grok-2 (Dec 2024) | Step 5 Preview |
|---|---|---|
| LMArena Expert | 1254 | 1470 |
| GPQA Diamond | 53.8% | — |
| Confabulations | 20.1% | — |

## Multimodal

- Grok-2 (Dec 2024): —
- Step 5 Preview: 41.0 (#41)

| Benchmark | Grok-2 (Dec 2024) | Step 5 Preview |
|---|---|---|
| LMArena Vision | — | 1267 |

## Multilingual

- Grok-2 (Dec 2024): 43.1 (#188)
- Step 5 Preview: 53.8 (#54)

| Benchmark | Grok-2 (Dec 2024) | Step 5 Preview |
|---|---|---|
| LMArena Non-English | 1282 | 1432 |
| LMArena Chinese | 1289 | 1519 |
| LMArena Russian | 1286 | 1436 |
| LMArena Spanish | 1281 | 1439 |
| LMArena French | 1318 | — |
| LMArena German | 1287 | — |
| LMArena Japanese | 1244 | — |
| LMArena Korean | 1237 | — |

## Instruction Following

- Grok-2 (Dec 2024): 66.9 (#202)
- Step 5 Preview: 76.0 (#50)

| Benchmark | Grok-2 (Dec 2024) | Step 5 Preview |
|---|---|---|
| LMArena Instruction Following | 1270 | 1444 |
| LiveBench Instruction Following | 69.6% | — |

## Long Context

- Grok-2 (Dec 2024): 38.8 (#190)
- Step 5 Preview: 44.5 (#64)

| Benchmark | Grok-2 (Dec 2024) | Step 5 Preview |
|---|---|---|
| LMArena Longer Query | 1276 | 1455 |

## Writing & Preference

- Grok-2 (Dec 2024): 48.6 (#198)
- Step 5 Preview: 62.8 (#71)

| Benchmark | Grok-2 (Dec 2024) | Step 5 Preview |
|---|---|---|
| LMArena Text | 1305 | 1442 |
| LMArena Creative Writing | 1284 | 1410 |
| LMArena Multi-Turn | 1290 | 1447 |
| Short-Story Creative Writing | 63.6% | — |
| LiveBench Language | 45.6% | — |

## FAQ

### Is Grok-2 (Dec 2024) better than Step 5 Preview?

Step 5 Preview is the stronger model overall, scoring 47.9 to 33.7 on the Noometry Index.

### Is Grok-2 (Dec 2024) or Step 5 Preview better for coding?

Step 5 Preview scores higher on coding benchmarks: 51.8 versus 33.3 in the Noometry coding category.

### How many benchmarks do Grok-2 (Dec 2024) and Step 5 Preview share?

13 benchmarks have published results for both models. Grok-2 (Dec 2024) has 34 scored results on Noometry and Step 5 Preview has 18.