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

Anthropic

Claude Sonnet 4.5

Released 5 months ago ยท Sep 29 2025
Science
GPQA Diamond
83.4%
Coding
SWE-Bench Verified
77.2%

About Claude Sonnet 4.5

More detailed information about Claude Sonnet 4.5 will be added here as the timeline data becomes more comprehensive.

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