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

Kimi K2 (0905) vs GLM-4

Moonshot AI
Kimi K2 (0905)
Z.ai
GLM-4
Overview
CompanyMoonshot AIZ.ai
Release dateSep 5 2025Jan 16 2024
AccessOpen WeightProprietary
Specifications
Parameters
1T
Context window
256k
Benchmarks
Coding
SWE-Bench Verified
65.8%
Science
GPQA Diamond
75.1%
Timeline
Release gapGLM-4 shipped 598 days before Kimi K2 (0905)

Which is better: Kimi K2 (0905) or GLM-4?

Kimi K2 (0905) and GLM-4 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GLM-4 shipped 598 days before Kimi K2 (0905), so benchmark comparisons should account for the intervening progress.

Kimi K2 (0905) is open weight, while GLM-4 is proprietary.

Direct benchmark comparisons are unavailable — Kimi K2 (0905) and GLM-4 don't publish scores on any of the same benchmarks.

Frequently asked questions

Kimi K2 (0905) was released by Moonshot AI on Sep 5 2025.

GLM-4 was released by Z.ai on Jan 16 2024.

Kimi K2 (0905) is an open weight model released by Moonshot AI. GLM-4 is a proprietary model released by Z.ai.

Other comparisons