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

Composer 1.5 vs GLM-4.6

Cursor
Composer 1.5
Z.ai
GLM-4.6
Overview
CompanyCursorZ.ai
Release dateFeb 8 2026Sep 30 2025
AccessProprietaryOpen Weight
Specifications
Parameters
355B
Context window
200k
Benchmarks
Coding
SWE-Bench Verified
68%
Timeline
Release gapGLM-4.6 shipped 131 days before Composer 1.5

Which is better: Composer 1.5 or GLM-4.6?

Composer 1.5 and GLM-4.6 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GLM-4.6 shipped 131 days before Composer 1.5, so benchmark comparisons should account for the intervening progress.

Composer 1.5 is proprietary, while GLM-4.6 is open weight.

Direct benchmark comparisons are unavailable — Composer 1.5 and GLM-4.6 don't publish scores on any of the same benchmarks.

Frequently asked questions

Composer 1.5 was released by Cursor on Feb 8 2026.

GLM-4.6 was released by Z.ai on Sep 30 2025.

Composer 1.5 is a proprietary model released by Cursor. GLM-4.6 is an open weight model released by Z.ai.

Other comparisons