Happy holidays from OpenAI. The AI startup plans to kick off a “shipmas” period of new features, products, and demos for 12 days, starting on December 5th. The announcements will include OpenAI’s long-awaited text-to-video AI tool Sora and a new reasoning model, sources familiar with OpenAI’s plans tell The Verge.OpenAI CEO Sam Altman confirmed the 12 days of announcements onstage at The New York Times’ DealBook conference on Wednesday morning, though he didn’t say exactly what was coming. OpenA...