What changed in AI, 19 Oct to 25 October 2026

The week was defined by unprecedented capital concentration, as OpenAI neared a $30 billion round at a $1.25 trillion valuation while Meta committed over $100 billion to AI infrastructure. Simultaneously, Tesla and SpaceX formed committees to explore a $3.5 trillion merger centered on artificial intelligence. These massive financial moves coincided with a critical security disclosure, where GPT-5.6 Sol identified a vulnerability affecting 70% of websites, highlighting the dual nature of rapid AI advancement.

1041 stories this week. The ten that mattered most, then every model release and deal.