Cursor.

Claude Sonnet 5 as Default Model, Notion Workers & Cursor's $60B SpaceX Deal: July 1 AI Briefing

On July 1, 2026, three pivotal shifts reshape the AI tools landscape. Claude Sonnet 5 becomes the default model for Free and Pro users, Notion completes its pivot to an AI agent hub with Workers, and SpaceX acquires Cursor for $60 billion — signaling vibe coding as industrial infrastructure.