# Claude Sonnet 5.5 vs Muse Glimmer

> Claude Sonnet 5.5 is the stronger model overall, scoring 60.5 to 41.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-sonnet-5-5-vs-muse-glimmer
- Last updated: 2026-10-10
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Claude Sonnet 5.5 scores higher in 4 categories and Muse Glimmer in 0 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Sonnet 5.5 leads 88.7 to 36.1.
- Muse Glimmer has downloadable open weights; the other is API-only.

## Snapshot

| | Claude Sonnet 5.5 | Muse Glimmer |
|---|---|---|
| Provider | Anthropic | Meta |
| Noometry Index | 60.5 | 41.3 |
| Rank | 10 | 128 |
| Context | 1M | — |
| Input $/M | $2 | — |
| Output $/M | $10 | — |
| Weights | Proprietary | Open |

## Coding

- Claude Sonnet 5.5: 65.5 (#6)
- Muse Glimmer: 38.7 (#157)

| Benchmark | Claude Sonnet 5.5 | Muse Glimmer |
|---|---|---|
| LMArena WebDev | 1699 | 1355 |
| FrontierCode | 52.1% | — |
| CursorBench | 55.5% | — |
| FrontierSWE | 61.9% | — |
| SciCode | 61% | — |
| LMArena Coding | — | 1417 |
| ALE-Bench | 1,819 | — |

## Agentic & Tool Use

- Claude Sonnet 5.5: 44.9 (#14)
- Muse Glimmer: —

| Benchmark | Claude Sonnet 5.5 | Muse Glimmer |
|---|---|---|
| APEX-Agents | 75.5% | — |

## Reasoning

- Claude Sonnet 5.5: 52.4 (#29)
- Muse Glimmer: 27.2 (#111)

| Benchmark | Claude Sonnet 5.5 | Muse Glimmer |
|---|---|---|
| CritPt | 31.4% | — |
| LMArena Hard Prompts | — | 1395 |
| Mystery Game Puzzles | 65% | — |

## Math

- Claude Sonnet 5.5: 88.7 (#4)
- Muse Glimmer: 36.1 (#128)

| Benchmark | Claude Sonnet 5.5 | Muse Glimmer |
|---|---|---|
| FrontierMath (Tiers 1-3) | 88.8% | — |
| FrontierMath Tier 4 | 80.5% | — |
| OTIS Mock AIME 2024-2025 | 100% | — |
| ProofBench | 100% | — |
| LMArena Math | — | 1419 |

## Knowledge

- Claude Sonnet 5.5: 66.0 (#11)
- Muse Glimmer: 37.9 (#140)

| Benchmark | Claude Sonnet 5.5 | Muse Glimmer |
|---|---|---|
| GPQA Diamond | 95.6% | — |
| SimpleQA Verified | 46.5% | — |
| LMArena Expert | — | 1388 |

## Multimodal

- Claude Sonnet 5.5: 53.2 (#5)
- Muse Glimmer: —

| Benchmark | Claude Sonnet 5.5 | Muse Glimmer |
|---|---|---|
| Furniture Assembly | 75% | — |

## Multilingual

- Claude Sonnet 5.5: —
- Muse Glimmer: 50.6 (#117)

| Benchmark | Claude Sonnet 5.5 | Muse Glimmer |
|---|---|---|
| LMArena Non-English | — | 1384 |
| LMArena Chinese | — | 1412 |
| LMArena Russian | — | 1393 |

## Instruction Following

- Claude Sonnet 5.5: —
- Muse Glimmer: 72.7 (#134)

| Benchmark | Claude Sonnet 5.5 | Muse Glimmer |
|---|---|---|
| LMArena Instruction Following | — | 1374 |

## Long Context

- Claude Sonnet 5.5: —
- Muse Glimmer: 42.1 (#124)

| Benchmark | Claude Sonnet 5.5 | Muse Glimmer |
|---|---|---|
| LMArena Longer Query | — | 1381 |

## Writing & Preference

- Claude Sonnet 5.5: —
- Muse Glimmer: 57.7 (#122)

| Benchmark | Claude Sonnet 5.5 | Muse Glimmer |
|---|---|---|
| LMArena Text | — | 1389 |
| LMArena Creative Writing | — | 1338 |
| LMArena Multi-Turn | — | 1398 |

## FAQ

### Is Claude Sonnet 5.5 better than Muse Glimmer?

Claude Sonnet 5.5 is the stronger model overall, scoring 60.5 to 41.3 on the Noometry Index.

### Is Claude Sonnet 5.5 or Muse Glimmer better for coding?

Claude Sonnet 5.5 scores higher on coding benchmarks: 65.5 versus 38.7 in the Noometry coding category.

### How many benchmarks do Claude Sonnet 5.5 and Muse Glimmer share?

1 benchmark has published results for both models. Claude Sonnet 5.5 has 16 scored results on Noometry and Muse Glimmer has 13.