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

Claude 3.7 Sonnet vs GLM-4.5-Air

Anthropic
Claude 3.7 Sonnet
Z.ai
GLM-4.5-Air
Overview
CompanyAnthropicZ.ai
Release dateFeb 24 2025Jul 28 2025
AccessProprietaryOpen Weight
Specifications
Parameters
106B
Benchmarks
Nonsense detection
BullshitBench v2
49%
Coding
SWE-Bench Verified
62.3%Best
59.8%
Science
GPQA Diamond
68%
Timeline
Release gapClaude 3.7 Sonnet shipped 154 days before GLM-4.5-Air

Which is better: Claude 3.7 Sonnet or GLM-4.5-Air?

Claude 3.7 Sonnet leads GLM-4.5-Air on 1 of the 1 benchmark they both report (SWE-Bench Verified). Claude 3.7 Sonnet shipped 154 days before GLM-4.5-Air, so benchmark comparisons should account for the intervening progress.

Claude 3.7 Sonnet is proprietary, while GLM-4.5-Air is open weight.

On SWE-Bench Verified, Claude 3.7 Sonnet leads at 62.3% vs GLM-4.5-Air at 59.8%.

Frequently asked questions

Claude 3.7 Sonnet was released by Anthropic on Feb 24 2025.

GLM-4.5-Air was released by Z.ai on Jul 28 2025.

Claude 3.7 Sonnet leads on SWE-Bench Verified — Claude 3.7 Sonnet 62.3% vs GLM-4.5-Air 59.8%.

Claude 3.7 Sonnet is a proprietary model released by Anthropic. GLM-4.5-Air is an open weight model released by Z.ai.

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