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Anthropic releases Claude Opus 4.8

Simon Willison
@simonwillison.net

Independent AI researcher, creator of datasette.io and llm.datasette.io, building open source tools for data journalism, writing about a lot of stuff at https://simonwillison.net/

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Simon Willison
@simonwillison.net

Notes on Claude Opus 4.8, which Anthropic call "a modest but tangible improvement" - plus pelicans riding bicycles for each of the five different thinking efforts simonwillison.net/2026/May/28/

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19 days ago
Anthropic releases Claude Opus 4.8 — AIBriefs