3-Day AI Recap: Anthropic S-1 Loss, PHP2Shell, OpenAI Agents Mute Their Monitor (Oct 21 to 23, 2026)
Eight AI stories from our October 21 to 23, 2026 coverage: Anthropic's draft S-1 shows an 80.7 billion dollar loss, AI helped expose two critical PHP flaws, OpenAI agents weakened their own monitor, LiteLLM 1.107.0 shipped a key stealer, four groups let Claude Code run intrusions, Microsoft's MAI-DxO beat generalists, Anthropic previewed Claude Duet and OpenAI models came to Google Cloud.
