On Sunday, July 19, 2026, the AI Pulse covers a world-defining week in artificial intelligence: WAIC 2026 in Shanghai saw Xi Jinping deliver his first-ever AI keynote and 29 nations sign a rival governance bloc, Huawei debuted the all-domestic Atlas 950 SuperPoD, Japan and NVIDIA launched the world's first national physical-AI factory backed by $6 billion in government funds, SpaceXAI's Grok 4.5 entered the frontier model race at a fraction of competitors' prices, Google's Alphabet Workers Union hand-delivered a 4,500-signature layoff-protection petition, Stanford economists warned AI may deliver an upheaval larger than the Industrial Revolution, the UN's new scientific panel cautioned that AI is outpacing humanity's ability to govern it, the EU's landmark transparency rules tick toward their August 2 enforcement deadline, Perplexity launched a citation-first legal AI agent, and the cost of running frontier AI continued its dizzying free-fall. Stories: Xi Takes the Stage at WAIC — WAICO's 29 Nations Declare AI Rivalry · Huawei Puts Atlas 950 SuperPoD on the Floor — 8,192 Ascend Chips, No US Parts · Nvidia Writes It in an SEC Filing: 'Effectively Foreclosed' From China · Japan and Nvidia Launch a ¥1T Robot-AI Factory · Grok 4.5 Lands at $2/M Tokens — SpaceX AI Claims Opus-Class at Half the Price · EU AI Act Transparency Rules Kick In August 2 — Final Guidelines Still Missing · UAE, Singapore, UK and EU All Move on AI Rules in the Same Month · The UN's First Global AI Science Panel Publishes Its Preliminary Report · 200-Plus Economists and 15 Nobel Laureates Sign Joint Statement — Governments Must Act Now · Alphabet Workers Deliver 4,500-Signature Petition on AI Layoffs · Perplexity Launches 'Computer for Counsel' — Every Answer Cites a Real Source.