Composer 2 vs GLM-4.5
Cursor Composer 2 | Z.ai GLM-4.5 | |
|---|---|---|
| Overview | ||
| Company | Cursor | Z.ai |
| Release date | Mar 20 2026 | Jul 28 2025 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Parameters | — | 355B |
Context window | — | 128k |
| 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. | — | 64.2% |
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. | 73.7% | — |
Agentic coding CursorBench v3.1Cursor's own test of harder, real-world coding tasks inside a code editor. Higher is better. | 52.2% | — |
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. | 61.7% | — |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | — | 79.1% |
| Timeline | ||
| Release gap | GLM-4.5 shipped 235 days before Composer 2 | |
Which is better: Composer 2 or GLM-4.5?
Composer 2 and GLM-4.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GLM-4.5 shipped 235 days before Composer 2, so benchmark comparisons should account for the intervening progress.
Composer 2 is proprietary, while GLM-4.5 is open weight.
Direct benchmark comparisons are unavailable — Composer 2 and GLM-4.5 don't publish scores on any of the same benchmarks.
Frequently asked questions
Composer 2 was released by Cursor on Mar 20 2026.
GLM-4.5 was released by Z.ai on Jul 28 2025.
Composer 2 is a proprietary model released by Cursor. GLM-4.5 is an open weight model released by Z.ai.