DX Today AI Daily Brief - Sunday, March 29, 2026

Today's top AI stories: (1) SoftBank secures $40B loan to fund $30B OpenAI investment. (2) Apple hires former Google VP Lilian Rincon to lead AI marketing ahead of Siri overhaul. (3) SK hynix files for US listing targeting $10-14B to fund AI memory chip production. (4) OpenAI completes training on next model codenamed Spud, release expected in weeks. (5) Cursor reveals real-time reinforcement learning ships Composer improvements every 5 hours. (6) Perplexity launches Health platform connecting medical records to AI search. (7) Cognition's Devin AI engineer delivers 12x efficiency gains at Nubank. (8) Anthropic develops AutoDream background memory consolidation for Claude Code. (9) Meta releases TRIBE v2 foundation model predicting human brain responses. (10) Boston Dynamics ships production Atlas humanoid robots, initial run sold out at $420K each. (11) OpenAI deploys enterprise AI at 230-year-old Swiss rail manufacturer Stadler. (12) Analysts warn open-source AI is narrowing the monetizable gap with frontier labs.