DX Today AI Daily Brief - Sunday, March 22, 2026

Today's top AI stories: (1) OpenAI plans to nearly double workforce to 8,000 by end of 2026, per Financial Times. (2) Pentagon formalizes Palantir's Maven AI as official military program of record. (3) White House AI framework's Seven Pillars draw legal scrutiny over state preemption prospects. (4) Meta's Manus launches desktop AI agent app at $20/month for Mac and Windows. (5) AI startups captured record 41% of $128B in venture capital tracked by Carta. (6) Mamba-3 open-source state space mo...