Microsoft's AI diagnoser beats doctors, OpenAI eyes $1.25T, AI-led hacks | AI Digest

AI briefing — Oct 23, 2026. Today's top stories: • Microsoft's multi-agent diagnostic system beats doctors in peer-reviewed Science study • Chinese state hackers used AI agents to breach 2,250 ConnectWise customers • AI-found PHP vulnerabilities trigger global patch-or-shut-down warnings amid wave of breaches • OpenAI nears $30B raise at $1.25T valuation before IPO • 1Password lets AI agents log in without ever seeing your passwords • OpenAI launches fast Decisions API to rival TypeSafe's Jev classifier models • Finance analysts used Claude to design scorpion-toxin binders; AI labs push into biology • SpaceX and Tesla weigh merger to consolidate Musk's AI ambitions • Canva launches Craft, its own design-trained image model • Zuckerberg bets Meta's future on a network of Muse agents Where it's heading — what the analysts & labs say: • Simon Willison: Willison reports that Anthropic is donating Agent Skills to the Agentic AI Foundation under the Linux Foundation, joining MCP, which Anthropic donated earlier. He notes he predicted this in December. The direction is that the agent plumb… • Simon Willison: Willison highlights a PHP security release fixing two remote-code-execution holes across all of PHP 8.x. The first was found on Aug 19, 2026 by Wiz Research using Gemini 4 Argon and GPT-5.6 Sol, and was confirmed against Drupal and WordP… • Simon Willison (quoting Armin Ronacher): Ronacher argues that after 30 years of building bad software, 'the universe is punishing us for our sins.' The implication is that AI security research will surface a large backlog of latent vulnerabilities in legacy code. • Anthropic: Anthropic's own framing is that LLMs are making formal software verification feasible at a much larger scale. It positions AI-generated proofs as a way to assure correctness as AI-written code volume grows. This is a lab claim, and only… • DeepMind: DeepMind positions agentic science tooling as its direction. It says Google Antigravity for Science is accelerating the search for novel antimicrobial peptides, which extends its coding-agent stack into biology discovery. This is the lab… Auto-generated daily AI briefing. The "where it's heading" views are collected and attributed to named analysts/labs, not the channel's own opinion. Cover image: "BeatX 3D" by An3Yepes (Flickr), public domain.