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Claude Sonnet 4.6 Timeline - Announcements & Release History | AI Stats
Claude Sonnet 4.6
Anthropic
Overview
Family
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Timeline
Model Timeline
17 Feb 2026
Model Released
Model first made available to the public
17 Feb 2026
Model Announced
Model first introduced to the public
29 Sept 2025
Claude Sonnet 4.5
Previous version
21 May 2025
Claude Sonnet 4
Previous version
24 Feb 2025
Claude 3.7 Sonnet
Previous version
22 Oct 2024
Claude 3.5 Sonnet (2024-10-22)
Previous version
21 Jun 2024
Claude 3.5 Sonnet (2024-06-20)
Previous version
04 Mar 2024
Claude 3 Sonnet
Previous version
22 Nov 2023
Claude 2.1
Previous version
12 Jul 2023
Claude 2.0
Previous version
14 Mar 2023
Claude 1.0
Previous version
