# Muse Glimmer vs o3-pro

> o3-pro is the stronger model overall, scoring 42.7 to 41.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/muse-glimmer-vs-o3-pro
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in long context, where o3-pro leads 72.1 to 42.1.
- Muse Glimmer has downloadable open weights; the other is API-only.

## Snapshot

| | Muse Glimmer | o3-pro |
|---|---|---|
| Provider | Meta | OpenAI |
| Noometry Index | 41.3 | 42.7 |
| Rank | 128 | 94 |
| Context | — | 200K |
| Input $/M | — | $20 |
| Output $/M | — | $80 |
| Weights | Open | Proprietary |

## Coding

- Muse Glimmer: 38.7 (#157)
- o3-pro: 55.1 (#22)

| Benchmark | Muse Glimmer | o3-pro |
|---|---|---|
| Aider Polyglot | — | 84.9% |
| LMArena WebDev | 1355 | — |
| WeirdML | — | 58.2% |
| LMArena Coding | 1417 | — |

## Reasoning

- Muse Glimmer: 27.2 (#111)
- o3-pro: 24.1 (#152)

| Benchmark | Muse Glimmer | o3-pro |
|---|---|---|
| ARC-AGI-2 | — | 4.9% |
| Kagi LLM Benchmark | — | 72.1% |
| ARC-AGI-1 | — | 59.3% |
| LMArena Hard Prompts | 1395 | — |
| DTBench | — | 86.9% |
| LMCA | — | 38.5% |
| Epoch Capabilities Index | — | 147.43 |

## Math

- Muse Glimmer: 36.1 (#128)
- o3-pro: —

| Benchmark | Muse Glimmer | o3-pro |
|---|---|---|
| LMArena Math | 1419 | — |

## Knowledge

- Muse Glimmer: 37.9 (#140)
- o3-pro: 29.0 (#234)

| Benchmark | Muse Glimmer | o3-pro |
|---|---|---|
| Confabulations | — | 14.2% |
| Vectara Hallucination Rate | — | 23.3% |
| LMArena Expert | 1388 | — |

## Multilingual

- Muse Glimmer: 50.6 (#117)
- o3-pro: —

| Benchmark | Muse Glimmer | o3-pro |
|---|---|---|
| LMArena Non-English | 1384 | — |
| LMArena Chinese | 1412 | — |
| LMArena Russian | 1393 | — |

## Instruction Following

- Muse Glimmer: 72.7 (#134)
- o3-pro: —

| Benchmark | Muse Glimmer | o3-pro |
|---|---|---|
| LMArena Instruction Following | 1374 | — |

## Long Context

- Muse Glimmer: 42.1 (#124)
- o3-pro: 72.1 (#1)

| Benchmark | Muse Glimmer | o3-pro |
|---|---|---|
| Fiction.LiveBench | — | 97.2% |
| LMArena Longer Query | 1381 | — |

## Writing & Preference

- Muse Glimmer: 57.7 (#122)
- o3-pro: 57.1 (#128)

| Benchmark | Muse Glimmer | o3-pro |
|---|---|---|
| LMArena Text | 1389 | — |
| LMArena Creative Writing | 1338 | — |
| Short-Story Creative Writing | — | 84.4% |
| LMArena Multi-Turn | 1398 | — |

## FAQ

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

o3-pro is the stronger model overall, scoring 42.7 to 41.3 on the Noometry Index.

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

o3-pro scores higher on coding benchmarks: 55.1 versus 38.7 in the Noometry coding category.

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

0 benchmarks have published results for both models. Muse Glimmer has 13 scored results on Noometry and o3-pro has 12.