Community Notes announces $10K AI note-writing contest—with humans judging helpfulness

The WSDM Cup 2027 site says teams will build agents that research X posts and submit Community Notes without human editing. Rankings count notes that reach “Currently Rated Helpful” status, based on agreement among raters who usually disagree. Churning out notes alone won’t cut it. The $10,000 prize pool includes open-weight model bonuses; qualifying is tentatively scheduled to begin November 18, 2026.