AI Model Release Tracker - Timeline of Major AI Models from 2022-2026

Composer 2.5 vs GLM-5.2

Cursor
Composer 2.5
Z.ai
GLM-5.2
Overview
CompanyCursorZ.ai
Release dateMay 18 2026Jun 16 2026
AccessProprietaryOpen Weight
Specifications
Parameters
744B
Context window
1M
Benchmarks
Agentic coding
SWE-Bench Pro
62.1%
Multilingual coding
SWE-Bench Multilingual
79.8%
Agentic coding
CursorBench v3.1
63.2%
Agentic terminal coding
Terminal-Bench 2.1
81%
Agentic terminal coding
Terminal-Bench 2.0
69.3%
Multidisciplinary reasoning
Humanity's Last Exam · no tools
40.5%
Science
GPQA Diamond
91.2%
Timeline
Release gapComposer 2.5 shipped 29 days before GLM-5.2

Which is better: Composer 2.5 or GLM-5.2?

Composer 2.5 and GLM-5.2 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Composer 2.5 shipped 29 days before GLM-5.2, so benchmark comparisons should account for the intervening progress.

Composer 2.5 is proprietary, while GLM-5.2 is open weight.

Direct benchmark comparisons are unavailable — Composer 2.5 and GLM-5.2 don't publish scores on any of the same benchmarks.

Frequently asked questions

Composer 2.5 was released by Cursor on May 18 2026.

GLM-5.2 was released by Z.ai on Jun 16 2026.

Composer 2.5 is a proprietary model released by Cursor. GLM-5.2 is an open weight model released by Z.ai.

Other comparisons