Muse Spark vs GLM-5.1
Meta Muse Spark | Z.ai GLM-5.1 | |
|---|---|---|
| Overview | ||
| Company | Meta | Z.ai |
| Release date | Apr 8 2026 | Apr 7 2026 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Parameters | — | 744B |
Context window | — | 200k |
| 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% | — |
Agentic terminal coding Terminal-Bench 2.0Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? (Version 2.0 of the test.) Higher is better. | — | 63.5% |
Web browsing BrowseCompCan the AI browse the web and track down hard-to-find answers? Higher is better. | — | 68% |
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%Best | 86.2% |
Multimodal MMMUTests the AI on understanding images and text together across many college subjects. Higher is better. | 80.4% | — |
| Timeline | ||
| Release gap | GLM-5.1 shipped 1 days before Muse Spark | |
Which is better: Muse Spark or GLM-5.1?
Muse Spark leads GLM-5.1 on 1 of the 1 benchmark they both report (GPQA Diamond). GLM-5.1 shipped 1 days before Muse Spark, so benchmark comparisons should account for the intervening progress.
Muse Spark is proprietary, while GLM-5.1 is open weight.
On GPQA Diamond, Muse Spark leads at 89.5% vs GLM-5.1 at 86.2%.
Frequently asked questions
Muse Spark was released by Meta on Apr 8 2026.
GLM-5.1 was released by Z.ai on Apr 7 2026.
Muse Spark leads on GPQA Diamond — Muse Spark 89.5% vs GLM-5.1 86.2%.
Muse Spark is a proprietary model released by Meta. GLM-5.1 is an open weight model released by Z.ai.
Other comparisons
Muse Spark vs Claude Fable 5GLM-5.1 vs Claude Fable 5Muse Spark vs GPT-5.6 SolGLM-5.1 vs GPT-5.6 SolMuse Spark vs Gemini OmniGLM-5.1 vs Gemini OmniMuse Spark vs Grok 4.3 BetaGLM-5.1 vs Grok 4.3 BetaMuse Spark vs DeepSeek-V4-ProGLM-5.1 vs DeepSeek-V4-ProMuse Spark vs Mistral Medium 3.5GLM-5.1 vs Mistral Medium 3.5