← All briefings Daily briefing index Friday, June 19, 2026 Morning and afternoon are separate, focused editions. Choose one to read or share directly. Start of dayMorning briefDeepSeek-V4 architecture paper drops · "World models lack a persistent state core"Open this edition →End of dayAfternoon briefJohn Jumper leaves Google DeepMind for Anthropic · Figure: robots now outnumber humans on its own floorOpen this edition →