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

Claude 3.5 Sonnet (upgraded) vs GLM-4.7

Anthropic
Claude 3.5 Sonnet (upgraded)
Z.ai
GLM-4.7
Overview
CompanyAnthropicZ.ai
Release dateOct 22 2024Dec 22 2025
AccessProprietaryOpen Weight
Specifications
Context window
128k
Benchmarks
Coding
SWE-Bench Verified
49%
73.8%Best
Agentic terminal coding
Terminal-Bench 2.0
41%
Web browsing
BrowseComp
52%
Multidisciplinary reasoning
Humanity's Last Exam · no tools
24.8%
Multidisciplinary reasoning
Humanity's Last Exam · with tools
42.8%
Science
GPQA Diamond
85.7%
Timeline
Release gapClaude 3.5 Sonnet (upgraded) shipped 426 days before GLM-4.7

Which is better: Claude 3.5 Sonnet (upgraded) or GLM-4.7?

GLM-4.7 leads Claude 3.5 Sonnet (upgraded) on 1 of the 1 benchmark they both report (SWE-Bench Verified). Claude 3.5 Sonnet (upgraded) shipped 426 days before GLM-4.7, so benchmark comparisons should account for the intervening progress.

Claude 3.5 Sonnet (upgraded) is proprietary, while GLM-4.7 is open weight.

On SWE-Bench Verified, GLM-4.7 leads at 73.8% vs Claude 3.5 Sonnet (upgraded) at 49%.

Frequently asked questions

Claude 3.5 Sonnet (upgraded) was released by Anthropic on Oct 22 2024.

GLM-4.7 was released by Z.ai on Dec 22 2025.

GLM-4.7 leads on SWE-Bench Verified — Claude 3.5 Sonnet (upgraded) 49% vs GLM-4.7 73.8%.

Claude 3.5 Sonnet (upgraded) is a proprietary model released by Anthropic. GLM-4.7 is an open weight model released by Z.ai.

Other comparisons