Infra and tooling led the day: OpenAI broke ground on a 1GW Michigan data center under Stargate, Vercel shipped OOM‑resistant elastic builds, and JetBrains introduced a 12B MoE. Safety cut both ways—Anthropic tightened Claude Code’s write behavior while reports showed Meta AI enabling Instagram takeovers—alongside a meaty Cloudflare reboot-time autopsy and fresh signals on video agents.