AI Model Daily - 2026-06-01

2026-06-01 AI model news: the main new signal came from video models, with Grok-Imagine-Video-1.5-Preview reaching #1 on Arena Image-to-Video; xAI docs now list the API model; Artificial Analysis highlighted HiDream-O1-Image-Dev-2604 as the leading open-weights text-to-image model.