Composer 2.5 vs GLM-5.1
Cursor Composer 2.5 | Z.ai GLM-5.1 | |
|---|---|---|
| Overview | ||
| Company | Cursor | Z.ai |
| Release date | May 18 2026 | Apr 7 2026 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Parameters | — | 744B |
Context window | — | 200k |
| Benchmarks | ||
Multilingual coding SWE-Bench MultilingualLike SWE-Bench, but the coding problems span many programming languages, not just one. Tests how broadly the AI can code. Higher is better. | 79.8% | — |
Agentic coding CursorBench v3.1Cursor's own test of harder, real-world coding tasks inside a code editor. Higher is better. | 63.2% | — |
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. | 69.3%Best | 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. | — | 86.2% |
| Timeline | ||
| Release gap | GLM-5.1 shipped 41 days before Composer 2.5 | |
Which is better: Composer 2.5 or GLM-5.1?
Composer 2.5 leads GLM-5.1 on 1 of the 1 benchmark they both report (Terminal-Bench 2.0). GLM-5.1 shipped 41 days before Composer 2.5, so benchmark comparisons should account for the intervening progress.
Composer 2.5 is proprietary, while GLM-5.1 is open weight.
On Terminal-Bench 2.0, Composer 2.5 leads at 69.3% vs GLM-5.1 at 63.5%.
Frequently asked questions
Composer 2.5 was released by Cursor on May 18 2026.
GLM-5.1 was released by Z.ai on Apr 7 2026.
Composer 2.5 leads on Terminal-Bench 2.0 — Composer 2.5 69.3% vs GLM-5.1 63.5%.
Composer 2.5 is a proprietary model released by Cursor. GLM-5.1 is an open weight model released by Z.ai.
Other comparisons
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