Anthropic Announces Fable 5.1 Build Days: Global Buildathons Sept 11–25

claudeai · x · 2026-09-11

Anthropic's official Claude account announced Fable 5.1 Build Days, with Claude community-hosted buildathons in cities worldwide from September 11–25.

Participants can bring a problem or an idea, or just show up to see what's possible; RSVP is available via the Luma events calendar.

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