# Grok-3 mini vs Muse Spark 1.3

> Muse Spark 1.3 is the stronger model overall, scoring 54.4 to 41.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/grok-3-mini-vs-muse-spark-1-3
- Last updated: 2026-10-10
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Grok-3 mini scores higher in 2 categories and Muse Spark 1.3 in 6 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Muse Spark 1.3 leads 52.9 to 13.8.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 77.8% for Grok-3 mini and 99.2% for Muse Spark 1.3.

## Snapshot

| | Grok-3 mini | Muse Spark 1.3 |
|---|---|---|
| Provider | xAI | Meta |
| Noometry Index | 41.0 | 54.4 |
| Rank | 130 | 27 |
| Context | — | 1.05M |
| Input $/M | — | $1.25 |
| Output $/M | — | $4.25 |
| Weights | Proprietary | Proprietary |

## Coding

- Grok-3 mini: 40.4 (#126)
- Muse Spark 1.3: 56.1 (#18)

| Benchmark | Grok-3 mini | Muse Spark 1.3 |
|---|---|---|
| LMArena Coding | 1380 | 1516 |
| Aider Polyglot | 49.3% | — |
| CursorBench | — | 41.6% |
| LMArena WebDev | — | 1655 |
| SciCode | — | 59.7% |
| WeirdML | 42.6% | — |

## Agentic & Tool Use

- Grok-3 mini: —
- Muse Spark 1.3: 38.6 (#28)

| Benchmark | Grok-3 mini | Muse Spark 1.3 |
|---|---|---|
| APEX-Agents | — | 57.8% |
| GDP.pdf | — | 27.6% |

## Reasoning

- Grok-3 mini: 13.8 (#323)
- Muse Spark 1.3: 52.9 (#27)

| Benchmark | Grok-3 mini | Muse Spark 1.3 |
|---|---|---|
| LMArena Hard Prompts | 1374 | 1503 |
| Epoch Capabilities Index | 140.35 | 156.89 |
| ARC-AGI-2 | 0.4% | — |
| Kagi LLM Benchmark | 61.3% | — |
| NYT Connections (extended) | — | 85.1% |
| ARC-AGI-1 | 16.5% | — |
| CritPt | — | 24.9% |
| Chess Puzzles | — | 38% |
| Mystery Game Puzzles | — | 25% |
| DTBench | — | 96.5% |
| LMCA | — | 53.9% |
| Bench to the Future 3 | — | 0.14 |

## Math

- Grok-3 mini: 40.3 (#78)
- Muse Spark 1.3: 72.4 (#16)

| Benchmark | Grok-3 mini | Muse Spark 1.3 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 77.8% | 99.2% |
| LMArena Math | 1386 | 1497 |
| FrontierMath (Tiers 1-3) | — | 74.4% |
| FrontierMath Tier 4 | — | 46.3% |
| Omni-MATH | 31.8% | — |
| MATH Level 5 | 90.9% | — |
| FrontierMath (Feb 2025 set) | 5.9% | — |

## Knowledge

- Grok-3 mini: 46.3 (#75)
- Muse Spark 1.3: 42.0 (#92)

| Benchmark | Grok-3 mini | Muse Spark 1.3 |
|---|---|---|
| LMArena Expert | 1395 | 1516 |
| GPQA Diamond | 76.3% | — |
| MMLU-Pro | 79.9% | — |
| Confabulations | 10.8% | — |
| GPQA (HELM) | 67.5% | — |

## Multimodal

- Grok-3 mini: —
- Muse Spark 1.3: 43.0 (#21)

| Benchmark | Grok-3 mini | Muse Spark 1.3 |
|---|---|---|
| LMArena Vision | — | 1310 |
| LMArena Document | — | 1471 |

## Multilingual

- Grok-3 mini: 48.3 (#141)
- Muse Spark 1.3: 57.8 (#6)

| Benchmark | Grok-3 mini | Muse Spark 1.3 |
|---|---|---|
| LMArena Non-English | 1352 | 1485 |
| LMArena Chinese | 1387 | 1527 |
| LMArena French | 1357 | 1534 |
| LMArena Korean | 1336 | 1513 |
| LMArena Russian | 1352 | 1491 |
| LMArena Spanish | 1379 | 1485 |
| LMArena German | 1350 | — |
| LMArena Japanese | 1343 | — |

## Instruction Following

- Grok-3 mini: 78.7 (#8)
- Muse Spark 1.3: 77.8 (#14)

| Benchmark | Grok-3 mini | Muse Spark 1.3 |
|---|---|---|
| LMArena Instruction Following | 1356 | 1481 |
| IFEval | 95.1% | — |

## Long Context

- Grok-3 mini: 41.0 (#142)
- Muse Spark 1.3: 45.7 (#29)

| Benchmark | Grok-3 mini | Muse Spark 1.3 |
|---|---|---|
| LMArena Longer Query | 1372 | 1491 |
| Fiction.LiveBench | 66.7% | — |

## Writing & Preference

- Grok-3 mini: 52.7 (#163)
- Muse Spark 1.3: 73.7 (#10)

| Benchmark | Grok-3 mini | Muse Spark 1.3 |
|---|---|---|
| LMArena Text | 1370 | 1490 |
| LMArena Creative Writing | 1342 | 1450 |
| LMArena Multi-Turn | 1355 | 1486 |
| Short-Story Creative Writing | 73.5% | — |
| EQ-Bench Creative Writing | — | 1906 |
| WildBench | 65.1% | — |

## FAQ

### Is Grok-3 mini better than Muse Spark 1.3?

Muse Spark 1.3 is the stronger model overall, scoring 54.4 to 41.0 on the Noometry Index.

### Is Grok-3 mini or Muse Spark 1.3 better for coding?

Muse Spark 1.3 scores higher on coding benchmarks: 56.1 versus 40.4 in the Noometry coding category.

### How many benchmarks do Grok-3 mini and Muse Spark 1.3 share?

17 benchmarks have published results for both models. Grok-3 mini has 35 scored results on Noometry and Muse Spark 1.3 has 34.