Muse Spark vs GLM-4.5-Air
Meta Muse Spark | Z.ai GLM-4.5-Air | |
|---|---|---|
| Overview | ||
| Company | Meta | Z.ai |
| Release date | Apr 8 2026 | Jul 28 2025 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Parameters | — | 106B |
| Benchmarks | ||
Coding SWE-Bench VerifiedReal coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | 77.4%Best | 59.8% |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 89.5% | — |
Multimodal MMMUTests the AI on understanding images and text together across many college subjects. Higher is better. | 80.4% | — |
| Timeline | ||
| Release gap | GLM-4.5-Air shipped 254 days before Muse Spark | |
Which is better: Muse Spark or GLM-4.5-Air?
Muse Spark leads GLM-4.5-Air on 1 of the 1 benchmark they both report (SWE-Bench Verified). GLM-4.5-Air shipped 254 days before Muse Spark, so benchmark comparisons should account for the intervening progress.
Muse Spark is proprietary, while GLM-4.5-Air is open weight.
On SWE-Bench Verified, Muse Spark leads at 77.4% vs GLM-4.5-Air at 59.8%.
Frequently asked questions
Muse Spark was released by Meta on Apr 8 2026.
GLM-4.5-Air was released by Z.ai on Jul 28 2025.
Muse Spark leads on SWE-Bench Verified — Muse Spark 77.4% vs GLM-4.5-Air 59.8%.
Muse Spark is a proprietary model released by Meta. GLM-4.5-Air is an open weight model released by Z.ai.
Other comparisons
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