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

Grok 4.5 vs GLM-4.6

SpaceXAI
Grok 4.5
Z.ai
GLM-4.6
Overview
CompanySpaceXAIZ.ai
Release dateJul 8 2026Sep 30 2025
AccessProprietaryOpen Weight
Specifications
Parameters
355B
Context window
200k
Benchmarks
Agentic coding
SWE-Bench Pro
64.7%
Coding
SWE-Bench Verified
68%
Multilingual coding
SWE-Bench Multilingual
78%
Agentic coding
DeepSWE 1.0
62%
Agentic terminal coding
Terminal-Bench 2.1
83.3%
Timeline
Release gapGLM-4.6 shipped 281 days before Grok 4.5

Which is better: Grok 4.5 or GLM-4.6?

Grok 4.5 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 281 days before Grok 4.5, so benchmark comparisons should account for the intervening progress.

Grok 4.5 is proprietary, while GLM-4.6 is open weight.

Direct benchmark comparisons are unavailable — Grok 4.5 and GLM-4.6 don't publish scores on any of the same benchmarks.

Frequently asked questions

Grok 4.5 was released by SpaceXAI on Jul 8 2026.

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

Grok 4.5 is a proprietary model released by SpaceXAI. GLM-4.6 is an open weight model released by Z.ai.

Other comparisons