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

Grok 4 vs GLM-4

xAI
Grok 4
Z.ai
GLM-4
Overview
CompanyxAIZ.ai
Release dateJul 9 2025Jan 16 2024
AccessProprietaryProprietary
Timeline
Release gapGLM-4 shipped 540 days before Grok 4

Which is better: Grok 4 or GLM-4?

Grok 4 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 540 days before Grok 4, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

Direct benchmark comparisons are unavailable — Grok 4 and GLM-4 don't publish scores on any of the same benchmarks.

Frequently asked questions

Grok 4 was released by xAI on Jul 9 2025.

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

Other comparisons