Eight States Sue OpenAI, Google Ships Gemini 4 Argon, Meta Opens Muse Models — AI News Briefing
Eight US states sue OpenAI over alleged harm to young ChatGPT users, Google releases its Gemini 4 Argon frontier model, and Meta ships open-weight Muse models built with Apple for Macs. Meanwhile Anthropic expands Claude Code review, Taiwan plans a $4B Texas Nvidia supply-chain hub, and AI-agent accountability frameworks take shape.