Muse Spark vs GLM-5.2
Meta Muse Spark | Z.ai GLM-5.2 | |
|---|---|---|
| Overview | ||
| Company | Meta | Z.ai |
| Release date | Apr 8 2026 | Jun 16 2026 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Parameters | — | 744B |
Context window | — | 1M |
| Benchmarks | ||
Agentic coding SWE-Bench ProCan the AI fix real bugs in real software? It's handed actual problems from open-source projects and has to write code that genuinely solves them. Higher is better. | — | 62.1% |
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% | — |
Agentic terminal coding Terminal-Bench 2.1Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? Higher is better. | — | 81% |
Multidisciplinary reasoning Humanity's Last Exam · no toolsHumanity's Last Exam — extremely hard expert questions across many subjects, written so you can't just look up the answer. “No tools” means the AI answers on its own. Higher is better. | — | 40.5% |
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% | 91.2%Best |
Multimodal MMMUTests the AI on understanding images and text together across many college subjects. Higher is better. | 80.4% | — |
| Timeline | ||
| Release gap | Muse Spark shipped 69 days before GLM-5.2 | |
Which is better: Muse Spark or GLM-5.2?
GLM-5.2 leads Muse Spark on 1 of the 1 benchmark they both report (GPQA Diamond). Muse Spark shipped 69 days before GLM-5.2, so benchmark comparisons should account for the intervening progress.
Muse Spark is proprietary, while GLM-5.2 is open weight.
On GPQA Diamond, GLM-5.2 leads at 91.2% vs Muse Spark at 89.5%.
Frequently asked questions
Muse Spark was released by Meta on Apr 8 2026.
GLM-5.2 was released by Z.ai on Jun 16 2026.
GLM-5.2 leads on GPQA Diamond — Muse Spark 89.5% vs GLM-5.2 91.2%.
Muse Spark is a proprietary model released by Meta. GLM-5.2 is an open weight model released by Z.ai.
Other comparisons
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