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

Claude Sonnet 5 vs GLM-5

Anthropic
Claude Sonnet 5
Z.ai
GLM-5
Overview
CompanyAnthropicZ.ai
Release dateJun 30 2026Feb 12 2026
AccessProprietaryOpen Weight
Specifications
Parameters
744B
Benchmarks
Agentic coding
SWE-Bench Pro
63.2%
Coding
SWE-Bench Verified
77.8%
Multilingual coding
SWE-Bench Multilingual
73.3%
Agentic coding
CursorBench v3.1
61.2%
Agentic terminal coding
Terminal-Bench 2.1
80.4%
Agentic terminal coding
Terminal-Bench 2.0
56.2%
Web browsing
BrowseComp
75.9%
Multidisciplinary reasoning
Humanity's Last Exam · no tools
43.2%
Multidisciplinary reasoning
Humanity's Last Exam · with tools
57.4%Best
50.4%
Science
GPQA Diamond
86%
Agentic computer use
OSWorld-Verified
81.2%
Knowledge work
GDPval-AA
1618
Timeline
Release gapGLM-5 shipped 138 days before Claude Sonnet 5

Which is better: Claude Sonnet 5 or GLM-5?

Claude Sonnet 5 leads GLM-5 on 1 of the 1 benchmark they both report (Humanity's Last Exam). GLM-5 shipped 138 days before Claude Sonnet 5, so benchmark comparisons should account for the intervening progress.

Claude Sonnet 5 is proprietary, while GLM-5 is open weight.

On Humanity's Last Exam · with tools, Claude Sonnet 5 leads at 57.4% vs GLM-5 at 50.4%.

Frequently asked questions

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

GLM-5 was released by Z.ai on Feb 12 2026.

Claude Sonnet 5 leads on Humanity's Last Exam · with tools — Claude Sonnet 5 57.4% vs GLM-5 50.4%.

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

Other comparisons