# GLM-4.5 vs Muse Spark

> Muse Spark is the stronger model overall, scoring 50.3 to 41.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/glm-4-5-vs-muse-spark
- Last updated: 2026-10-10
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. GLM-4.5 scores higher in 0 categories and Muse Spark in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Muse Spark leads 65.7 to 35.5.
- The biggest single-benchmark swing is Humanity's Last Exam: 8.3% for GLM-4.5 and 40.6% for Muse Spark.
- GLM-4.5 has downloadable open weights; the other is API-only.

## Snapshot

| | GLM-4.5 | Muse Spark |
|---|---|---|
| Provider | Z.ai (Zhipu) | Meta |
| Noometry Index | 41.4 | 50.3 |
| Rank | 125 | 41 |
| Context | 131K | — |
| Input $/M | $0.60 | — |
| Output $/M | $2.20 | — |
| Weights | Open | Proprietary |

## Coding

- GLM-4.5: 41.1 (#121)
- Muse Spark: 45.6 (#65)

| Benchmark | GLM-4.5 | Muse Spark |
|---|---|---|
| LMArena Coding | 1434 | 1482 |
| SWE-bench Verified (bash only) | 54.2% | — |
| SciCode | — | 51.5% |
| WeirdML | 40.6% | — |
| ALE-Bench | 344.82 | — |
| AlgoTune | 1.52 | — |

## Reasoning

- GLM-4.5: 27.7 (#99)
- Muse Spark: 34.9 (#61)

| Benchmark | GLM-4.5 | Muse Spark |
|---|---|---|
| LMArena Hard Prompts | 1430 | 1475 |
| Kagi LLM Benchmark | 57.9% | — |
| CritPt | — | 11.3% |
| Epoch Capabilities Index | — | 152.09 |

## Math

- GLM-4.5: 36.3 (#119)
- Muse Spark: 46.8 (#57)

| Benchmark | GLM-4.5 | Muse Spark |
|---|---|---|
| LMArena Math | 1427 | 1455 |
| OTIS Mock AIME 2024-2025 | — | 88.9% |
| ProofBench | — | 17% |
| FrontierMath (Feb 2025 set) | — | 39% |
| FrontierMath Tier 4 (v1) | — | 14.6% |

## Knowledge

- GLM-4.5: 35.5 (#172)
- Muse Spark: 65.7 (#12)

| Benchmark | GLM-4.5 | Muse Spark |
|---|---|---|
| Humanity's Last Exam | 8.3% | 40.6% |
| LMArena Expert | 1433 | 1458 |
| GPQA Diamond | — | 89.8% |
| Confabulations | 11.3% | — |

## Multimodal

- GLM-4.5: —
- Muse Spark: 42.7 (#23)

| Benchmark | GLM-4.5 | Muse Spark |
|---|---|---|
| LMArena Vision | — | 1306 |
| LMArena Document | — | 1444 |

## Multilingual

- GLM-4.5: 53.0 (#74)
- Muse Spark: 56.3 (#23)

| Benchmark | GLM-4.5 | Muse Spark |
|---|---|---|
| LMArena Non-English | 1417 | 1464 |
| LMArena Chinese | 1465 | 1507 |
| LMArena French | 1423 | 1497 |
| LMArena German | 1406 | 1497 |
| LMArena Korean | 1382 | 1457 |
| LMArena Russian | 1414 | 1467 |
| LMArena Spanish | 1454 | 1471 |
| LMArena Japanese | 1416 | — |

## Instruction Following

- GLM-4.5: 74.3 (#100)
- Muse Spark: 76.1 (#47)

| Benchmark | GLM-4.5 | Muse Spark |
|---|---|---|
| LMArena Instruction Following | 1405 | 1443 |

## Long Context

- GLM-4.5: 38.2 (#196)
- Muse Spark: 44.4 (#65)

| Benchmark | GLM-4.5 | Muse Spark |
|---|---|---|
| LMArena Longer Query | 1413 | 1451 |
| Fiction.LiveBench | 58.3% | — |

## Writing & Preference

- GLM-4.5: 57.7 (#121)
- Muse Spark: 66.2 (#37)

| Benchmark | GLM-4.5 | Muse Spark |
|---|---|---|
| LMArena Text | 1430 | 1474 |
| LMArena Creative Writing | 1395 | 1460 |
| LMArena Multi-Turn | 1415 | 1477 |
| Short-Story Creative Writing | 73.4% | — |
| EQ-Bench Creative Writing | 1343 | — |

## FAQ

### Is GLM-4.5 better than Muse Spark?

Muse Spark is the stronger model overall, scoring 50.3 to 41.4 on the Noometry Index.

### Is GLM-4.5 or Muse Spark better for coding?

Muse Spark scores higher on coding benchmarks: 45.6 versus 41.1 in the Noometry coding category.

### How many benchmarks do GLM-4.5 and Muse Spark share?

17 benchmarks have published results for both models. GLM-4.5 has 27 scored results on Noometry and Muse Spark has 27.