X says it has begun a "phased rollout" of its rebuilt ad platform, which it says will have more modern "retrieval and ranking systems" powered by AI (Sarah Perez/TechCrunch)

Sarah Perez / TechCrunch: X says it has begun a “phased rollout” of its rebuilt ad platform, which it says will have more modern “retrieval and ranking systems” powered by AI — Elon Musk's X is still trying to woo back advertisers — this time with a rebuilt, AI-powered ads platform that started to rollout on Thursday.