Muse GlimmervsGLM-4.5
Muse Glimmer | GLM-4.5 | |
|---|---|---|
| Specifications | ||
Parameters | 30B | 355B |
Context window | — | 128k |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | — | 8% |
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. | 51.2% | — |
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. | 76%Best | 64.2% |
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. | 51.7% | — |
Multi-step tool use MCP AtlasCan the AI chain together many tools and steps to complete one bigger task, rather than doing just a single thing? Higher is better. | 75.5% | — |
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. | 22% | — |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 83.5%Best | 79.1% |
Agentic computer use OSWorld-VerifiedCan the AI actually operate a computer — clicking, typing, and using real apps — to finish tasks on its own? Higher is better. | 65.9% | — |
Knowledge work GDPval-AA v2economically valuable knowledge work (v2, re-based Elo) | 953 | — |
Chart reasoning CharXiv ReasoningCan the AI read and reason about complex charts and figures, not just text? Higher is better. | 78.8% | — |
Multimodal reasoning MMMU-ProA tougher version of MMMU — college-level questions that mix images, diagrams, and text together. Higher is better. | 74% | — |
| Overview | ||
| Company | Meta | Z.ai |
| Release date | Aug 10 2026 | Jul 28 2025 |
| Access | Open Weight | Open Weight |
Which is better: Muse Glimmer or GLM-4.5?
Muse Glimmer leads GLM-4.5 on 2 of the 2 benchmarks they both report (SWE-Bench Verified, GPQA Diamond). GLM-4.5 shipped 378 days before Muse Glimmer, so benchmark comparisons should account for the intervening progress.
Muse Glimmer has 30B parameters, while GLM-4.5 has 355B.
On SWE-Bench Verified, Muse Glimmer leads at 76% vs GLM-4.5 at 64.2%. On GPQA Diamond, Muse Glimmer leads at 83.5% vs GLM-4.5 at 79.1%.
Frequently asked questions
Muse Glimmer was released by Meta on Aug 10 2026.
GLM-4.5 was released by Z.ai on Jul 28 2025.
Muse Glimmer leads on SWE-Bench Verified — Muse Glimmer 76% vs GLM-4.5 64.2%.
Muse Glimmer leads on GPQA Diamond — Muse Glimmer 83.5% vs GLM-4.5 79.1%.
Other comparisons
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