# Muse Spark 1.1 vs o3-pro

> Muse Spark 1.1 is the stronger model overall, scoring 49.9 to 42.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/muse-spark-1-1-vs-o3-pro
- Last updated: 2026-10-10
- Shared benchmarks: 3

## Summary

- They share 3 benchmarks with published results for both. Muse Spark 1.1 scores higher in 3 categories and o3-pro in 2 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in long context, where o3-pro leads 72.2 to 44.8.
- The biggest single-benchmark swing is LMCA: 49.9% for Muse Spark 1.1 and 38.5% for o3-pro.
- Muse Spark 1.1 is cheaper at $1.25 / $4.25 per million input/output tokens, against $20 / $80 for o3-pro.
- Muse Spark 1.1 accepts more context: 1.05M tokens versus 200K.

## Snapshot

| | Muse Spark 1.1 | o3-pro |
|---|---|---|
| Provider | Meta | OpenAI |
| Noometry Index | 49.9 | 42.9 |
| Rank | 51 | 105 |
| Context | 1.05M | 200K |
| Input $/M | $1.25 | $20 |
| Output $/M | $4.25 | $80 |
| Weights | Proprietary | Proprietary |

## Coding

- Muse Spark 1.1: 51.3 (#40)
- o3-pro: 55.5 (#24)

| Benchmark | Muse Spark 1.1 | o3-pro |
|---|---|---|
| DeepSWE | 53.3% | — |
| Aider Polyglot | — | 84.9% |
| LMArena WebDev | 1542 | — |
| SciCode | 58.8% | — |
| WeirdML | — | 58.2% |
| LMArena Coding | 1498 | — |

## Agentic & Tool Use

- Muse Spark 1.1: 30.8 (#73)
- o3-pro: —

| Benchmark | Muse Spark 1.1 | o3-pro |
|---|---|---|
| APEX-Agents | 31.8% | — |
| τ²-bench Banking | 40.5% | — |
| GBAEval | 7.9% | — |
| GDP.pdf | 15% | — |
| Vending-Bench 2 | 6,520 | — |

## Reasoning

- Muse Spark 1.1: 47.1 (#44)
- o3-pro: 23.8 (#171)

| Benchmark | Muse Spark 1.1 | o3-pro |
|---|---|---|
| DTBench | 94.4% | 86.9% |
| LMCA | 49.9% | 38.5% |
| Epoch Capabilities Index | 154.21 | 147.42 |
| ARC-AGI-2 | — | 4.9% |
| Kagi LLM Benchmark | — | 72.1% |
| NYT Connections (extended) | 84.9% | — |
| ARC-AGI-1 | — | 59.3% |
| CritPt | 15.1% | — |
| LMArena Hard Prompts | 1486 | — |
| Surface Evolver Bench | 52.5% | — |

## Math

- Muse Spark 1.1: 45.5 (#76)
- o3-pro: —

| Benchmark | Muse Spark 1.1 | o3-pro |
|---|---|---|
| ProofBench | 39% | — |
| LMArena Math | 1483 | — |

## Knowledge

- Muse Spark 1.1: 53.1 (#59)
- o3-pro: 29.5 (#238)

| Benchmark | Muse Spark 1.1 | o3-pro |
|---|---|---|
| SimpleQA Verified | 57.8% | — |
| Confabulations | — | 14.2% |
| Vectara Hallucination Rate | — | 23.3% |
| LMArena Expert | 1478 | — |

## Multimodal

- Muse Spark 1.1: 42.6 (#29)
- o3-pro: —

| Benchmark | Muse Spark 1.1 | o3-pro |
|---|---|---|
| LMArena Vision | 1293 | — |
| LMArena Document | 1465 | — |

## Multilingual

- Muse Spark 1.1: 56.7 (#17)
- o3-pro: —

| Benchmark | Muse Spark 1.1 | o3-pro |
|---|---|---|
| LMArena Non-English | 1472 | — |
| LMArena Chinese | 1518 | — |
| LMArena French | 1494 | — |
| LMArena German | 1466 | — |
| LMArena Japanese | 1451 | — |
| LMArena Korean | 1458 | — |
| LMArena Russian | 1483 | — |
| LMArena Spanish | 1464 | — |

## Instruction Following

- Muse Spark 1.1: 76.5 (#39)
- o3-pro: —

| Benchmark | Muse Spark 1.1 | o3-pro |
|---|---|---|
| LMArena Instruction Following | 1457 | — |

## Long Context

- Muse Spark 1.1: 44.8 (#58)
- o3-pro: 72.2 (#1)

| Benchmark | Muse Spark 1.1 | o3-pro |
|---|---|---|
| Fiction.LiveBench | — | 97.2% |
| LMArena Longer Query | 1462 | — |

## Writing & Preference

- Muse Spark 1.1: 73.4 (#11)
- o3-pro: 57.1 (#133)

| Benchmark | Muse Spark 1.1 | o3-pro |
|---|---|---|
| LMArena Text | 1479 | — |
| LMArena Creative Writing | 1437 | — |
| Short-Story Creative Writing | — | 84.4% |
| EQ-Bench Creative Writing | 1927 | — |
| EQ-Bench 4 | 1260 | — |
| LMArena Multi-Turn | 1485 | — |

## FAQ

### Is Muse Spark 1.1 better than o3-pro?

Muse Spark 1.1 is the stronger model overall, scoring 49.9 to 42.9 on the Noometry Index.

### Which is cheaper, Muse Spark 1.1 or o3-pro?

Muse Spark 1.1 is cheaper. It lists at $1.25 per million input tokens and $4.25 per million output tokens; o3-pro lists at $20 and $80.

### Is Muse Spark 1.1 or o3-pro better for coding?

o3-pro scores higher on coding benchmarks: 55.5 versus 51.3 in the Noometry coding category.

### Which has the bigger context window?

Muse Spark 1.1 does, with 1.05M tokens against 200K.

### How many benchmarks do Muse Spark 1.1 and o3-pro share?

3 benchmarks have published results for both models. Muse Spark 1.1 has 37 scored results on Noometry and o3-pro has 12.