# Muse Spark vs o3-pro

> Muse Spark is the stronger model overall, scoring 50.6 to 42.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/muse-spark-vs-o3-pro
- Last updated: 2026-10-11
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Muse Spark scores higher in 3 categories and o3-pro in 2 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Muse Spark leads 65.7 to 29.5.

## Snapshot

| | Muse Spark | o3-pro |
|---|---|---|
| Provider | Meta | OpenAI |
| Noometry Index | 50.6 | 42.9 |
| Rank | 46 | 105 |
| Context | — | 200K |
| Input $/M | — | $20 |
| Output $/M | — | $80 |
| Weights | Proprietary | Proprietary |

## Coding

- Muse Spark: 46.2 (#69)
- o3-pro: 55.5 (#24)

| Benchmark | Muse Spark | o3-pro |
|---|---|---|
| Aider Polyglot | — | 84.9% |
| SciCode | 51.5% | — |
| WeirdML | — | 58.2% |
| LMArena Coding | 1481 | — |

## Reasoning

- Muse Spark: 35.9 (#67)
- o3-pro: 23.8 (#171)

| Benchmark | Muse Spark | o3-pro |
|---|---|---|
| Epoch Capabilities Index | 152.04 | 147.42 |
| ARC-AGI-2 | — | 4.9% |
| Kagi LLM Benchmark | — | 72.1% |
| ARC-AGI-1 | — | 59.3% |
| CritPt | 11.3% | — |
| LMArena Hard Prompts | 1474 | — |
| DTBench | — | 86.9% |
| LMCA | — | 38.5% |

## Math

- Muse Spark: 47.8 (#66)
- o3-pro: —

| Benchmark | Muse Spark | o3-pro |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 88.9% | — |
| ProofBench | 17% | — |
| LMArena Math | 1455 | — |
| FrontierMath (Feb 2025 set) | 39% | — |
| FrontierMath Tier 4 (v1) | 14.6% | — |

## Knowledge

- Muse Spark: 65.7 (#13)
- o3-pro: 29.5 (#238)

| Benchmark | Muse Spark | o3-pro |
|---|---|---|
| GPQA Diamond | 89.8% | — |
| Humanity's Last Exam | 40.6% | — |
| Confabulations | — | 14.2% |
| Vectara Hallucination Rate | — | 23.3% |
| LMArena Expert | 1457 | — |

## Multimodal

- Muse Spark: 43.4 (#24)
- o3-pro: —

| Benchmark | Muse Spark | o3-pro |
|---|---|---|
| LMArena Vision | 1306 | — |
| LMArena Document | 1444 | — |

## Multilingual

- Muse Spark: 56.1 (#24)
- o3-pro: —

| Benchmark | Muse Spark | o3-pro |
|---|---|---|
| LMArena Non-English | 1464 | — |
| LMArena Chinese | 1509 | — |
| LMArena French | 1497 | — |
| LMArena German | 1497 | — |
| LMArena Korean | 1459 | — |
| LMArena Russian | 1466 | — |
| LMArena Spanish | 1472 | — |

## Instruction Following

- Muse Spark: 75.9 (#51)
- o3-pro: —

| Benchmark | Muse Spark | o3-pro |
|---|---|---|
| LMArena Instruction Following | 1442 | — |

## Long Context

- Muse Spark: 44.4 (#69)
- o3-pro: 72.2 (#1)

| Benchmark | Muse Spark | o3-pro |
|---|---|---|
| Fiction.LiveBench | — | 97.2% |
| LMArena Longer Query | 1451 | — |

## Writing & Preference

- Muse Spark: 66.0 (#39)
- o3-pro: 57.1 (#133)

| Benchmark | Muse Spark | o3-pro |
|---|---|---|
| LMArena Text | 1474 | — |
| LMArena Creative Writing | 1459 | — |
| Short-Story Creative Writing | — | 84.4% |
| LMArena Multi-Turn | 1477 | — |

## FAQ

### Is Muse Spark better than o3-pro?

Muse Spark is the stronger model overall, scoring 50.6 to 42.9 on the Noometry Index.

### Is Muse Spark or o3-pro better for coding?

o3-pro scores higher on coding benchmarks: 55.5 versus 46.2 in the Noometry coding category.

### How many benchmarks do Muse Spark and o3-pro share?

1 benchmark has published results for both models. Muse Spark has 27 scored results on Noometry and o3-pro has 12.