The week the frontier labs chose their lanes: Argon's debut, Anthropic's IPO warning, and AMD's $8.2 billion bet
Google shipped Gemini 4 Argon with a 1-million-token output and handed it to cyber defenders first. Anthropic shipped Sonnet 5.5 and warned IPO investors its models might resist shutdown. AMD paid $8.2 billion for Fei-Fei Li's World Labs. This week, the frontier race split in three directions.