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

Claude 2 vs GLM-5.2

Anthropic
Claude 2
Z.ai
GLM-5.2
Overview
CompanyAnthropicZ.ai
Release dateJul 11 2023Jun 16 2026
AccessProprietaryOpen Weight
Specifications
Parameters
744B
Context window
1M
Benchmarks
Agentic coding
SWE-Bench Pro
62.1%
Agentic terminal coding
Terminal-Bench 2.1
81%
Multidisciplinary reasoning
Humanity's Last Exam · no tools
40.5%
Science
GPQA Diamond
91.2%
Timeline
Release gapClaude 2 shipped 1071 days before GLM-5.2

Which is better: Claude 2 or GLM-5.2?

Claude 2 and GLM-5.2 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude 2 shipped 1071 days before GLM-5.2, so benchmark comparisons should account for the intervening progress.

Claude 2 is proprietary, while GLM-5.2 is open weight.

Direct benchmark comparisons are unavailable — Claude 2 and GLM-5.2 don't publish scores on any of the same benchmarks.

Frequently asked questions

Claude 2 was released by Anthropic on Jul 11 2023.

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

Claude 2 is a proprietary model released by Anthropic. GLM-5.2 is an open weight model released by Z.ai.

Other comparisons