Sonnet with extended thinking solved it after 30s for me: https://claude.ai/shar... | Hacker News

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		mmmore 10 days ago \| parent \| context \| favorite \| on: Claude 4 Sonnet with extended thinking solved it after 30s for me: https://claude.ai/share/b974bd96-91f4-4d92-9aa8-7bad964e9c5a Normal Opus solved it: https://claude.ai/share/a1845cc3-bb5f-4875-b78b-ee7440dbf764 Opus with extended thinking solved it after 7s: https://claude.ai/share/0cf567ab-9648-4c3a-abd0-3257ed4fbf59 Though it's a weird puzzle to use a benchmark because the answer is so formulaic.

j_maffe 10 days ago [–]

It is formulaic which is why it surprised me that Sonnet failed it. I don't have access to the other models so I'll stick with Gemini for now.

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