# Grok Build 0.1 vs Muse Spark

> Muse Spark is the stronger model overall, scoring 50.3 to 35.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/grok-build-0-1-vs-muse-spark
- Last updated: 2026-10-10
- Shared benchmarks: 2

## Summary

- They share 2 benchmarks with published results for both. Grok Build 0.1 scores higher in 0 categories and Muse Spark in 2 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Muse Spark leads 34.9 to 31.3.

## Snapshot

| | Grok Build 0.1 | Muse Spark |
|---|---|---|
| Provider | xAI | Meta |
| Noometry Index | 35.8 | 50.3 |
| Rank | 214 | 41 |
| Context | 256K | — |
| Input $/M | $1 | — |
| Output $/M | $2 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Grok Build 0.1: 42.5 (#90)
- Muse Spark: 45.6 (#65)

| Benchmark | Grok Build 0.1 | Muse Spark |
|---|---|---|
| SciCode | 50.2% | 51.5% |
| LMArena Coding | — | 1482 |

## Agentic & Tool Use

- Grok Build 0.1: 22.5 (#122)
- Muse Spark: —

| Benchmark | Grok Build 0.1 | Muse Spark |
|---|---|---|
| GBAEval | 2.4% | — |

## Reasoning

- Grok Build 0.1: 31.3 (#73)
- Muse Spark: 34.9 (#61)

| Benchmark | Grok Build 0.1 | Muse Spark |
|---|---|---|
| CritPt | 9.1% | 11.3% |
| LMArena Hard Prompts | — | 1475 |
| Epoch Capabilities Index | — | 152.09 |

## Math

- Grok Build 0.1: —
- Muse Spark: 46.8 (#57)

| Benchmark | Grok Build 0.1 | Muse Spark |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 88.9% |
| ProofBench | — | 17% |
| LMArena Math | — | 1455 |
| FrontierMath (Feb 2025 set) | — | 39% |
| FrontierMath Tier 4 (v1) | — | 14.6% |

## Knowledge

- Grok Build 0.1: —
- Muse Spark: 65.7 (#12)

| Benchmark | Grok Build 0.1 | Muse Spark |
|---|---|---|
| GPQA Diamond | — | 89.8% |
| Humanity's Last Exam | — | 40.6% |
| LMArena Expert | — | 1458 |

## Multimodal

- Grok Build 0.1: —
- Muse Spark: 42.7 (#23)

| Benchmark | Grok Build 0.1 | Muse Spark |
|---|---|---|
| LMArena Vision | — | 1306 |
| LMArena Document | — | 1444 |

## Multilingual

- Grok Build 0.1: —
- Muse Spark: 56.3 (#23)

| Benchmark | Grok Build 0.1 | Muse Spark |
|---|---|---|
| LMArena Non-English | — | 1464 |
| LMArena Chinese | — | 1507 |
| LMArena French | — | 1497 |
| LMArena German | — | 1497 |
| LMArena Korean | — | 1457 |
| LMArena Russian | — | 1467 |
| LMArena Spanish | — | 1471 |

## Instruction Following

- Grok Build 0.1: —
- Muse Spark: 76.1 (#47)

| Benchmark | Grok Build 0.1 | Muse Spark |
|---|---|---|
| LMArena Instruction Following | — | 1443 |

## Long Context

- Grok Build 0.1: —
- Muse Spark: 44.4 (#65)

| Benchmark | Grok Build 0.1 | Muse Spark |
|---|---|---|
| LMArena Longer Query | — | 1451 |

## Writing & Preference

- Grok Build 0.1: —
- Muse Spark: 66.2 (#37)

| Benchmark | Grok Build 0.1 | Muse Spark |
|---|---|---|
| LMArena Text | — | 1474 |
| LMArena Creative Writing | — | 1460 |
| LMArena Multi-Turn | — | 1477 |

## FAQ

### Is Grok Build 0.1 better than Muse Spark?

Muse Spark is the stronger model overall, scoring 50.3 to 35.8 on the Noometry Index.

### Is Grok Build 0.1 or Muse Spark better for coding?

Muse Spark scores higher on coding benchmarks: 45.6 versus 42.5 in the Noometry coding category.

### How many benchmarks do Grok Build 0.1 and Muse Spark share?

2 benchmarks have published results for both models. Grok Build 0.1 has 3 scored results on Noometry and Muse Spark has 27.