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Anthropic Releases Claude Sonnet 5.5

· Paul Thurrott · Sept. 28, 2026, 9:54 p.m.

Anthropic Anthropic Claude Anthropic Claude Sonnet artificial-intelligence technology-news Product release

Summary

Anthropic has released Claude Sonnet 5.5, following closely on the heels of Claude Opus 5.5. The content is primarily an announcement with no novel insights or original content.

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