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

Claude Sonnet 5 vs ChatGLM-6B

Anthropic
Claude Sonnet 5
Z.ai
ChatGLM-6B
Overview
CompanyAnthropicZ.ai
Release dateJun 30 2026Mar 14 2023
AccessProprietaryOpen Weight
Specifications
Parameters
6B
Benchmarks
Agentic coding
SWE-Bench Pro
63.2%
Agentic coding
CursorBench v3.1
61.2%
Agentic terminal coding
Terminal-Bench 2.1
80.4%
Multidisciplinary reasoning
Humanity's Last Exam · no tools
43.2%
Multidisciplinary reasoning
Humanity's Last Exam · with tools
57.4%
Agentic computer use
OSWorld-Verified
81.2%
Knowledge work
GDPval-AA
1618
Timeline
Release gapChatGLM-6B shipped 1204 days before Claude Sonnet 5

Which is better: Claude Sonnet 5 or ChatGLM-6B?

Claude Sonnet 5 and ChatGLM-6B don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. ChatGLM-6B shipped 1204 days before Claude Sonnet 5, so benchmark comparisons should account for the intervening progress.

Claude Sonnet 5 is proprietary, while ChatGLM-6B is open weight.

Direct benchmark comparisons are unavailable — Claude Sonnet 5 and ChatGLM-6B don't publish scores on any of the same benchmarks.

Frequently asked questions

Claude Sonnet 5 was released by Anthropic on Jun 30 2026.

ChatGLM-6B was released by Z.ai on Mar 14 2023.

Claude Sonnet 5 is a proprietary model released by Anthropic. ChatGLM-6B is an open weight model released by Z.ai.

Other comparisons