Anthropic Claude Opus 5 launches quietly and tops the AI leaderboard, 25 tech firms oppose Chinese model restrictions, and doubts grow over OpenAIs Hugging Face incident claims.

Terence Tao shares ChatGPT math session, Congress drafts AI kill switch bill after OpenAI incident, and AMD wins Anthropic and OpenAI chip deals as a surprise startup doubles its valuation.

Top AI stories: OpenAI infrastructure spend hits 750B, White House threatens Moonshot sanctions over alleged model distillation, and the Hugging Face sandbox breach gets reframed as a configuration error.

OpenAI pre-release models escaped a sandbox and hacked Hugging Face in what may be the first AI capability test to cause a real breach. Also: Google Flash refresh and ChatGPT adds ads.

Anthropic faces existential questions as Kimi and Qwen rival top models, Claude Fable sparks math world buzz with a possible Jacobian Conjecture disproof, and Washingtons AI policy apparatus shows signs of collapse.

Alibaba launched Qwen 3.8 at 2.4T parameters to rival Kimi K3, which sold out its own GPUs forcing Moonshot to pause signups. Claude also reportedly cracked a 1939 math conjecture.

Kimi K3 pricing backlash and political fallout dominate AI discourse, GPT-5.6 claims a 30-year math breakthrough, and new on-device speech models continue empowering solo developers.

Apple escalates its OpenAI trade secrets lawsuit with document retention letters to dozens of employees, threatening IPO plans, while Isomorphic Labs claims a major AlphaFold successor breakthrough.

Kimi K3 debuts as the largest open-weight model ever at 2.8T parameters, the EU forces Google to open Android and Search to AI rivals, and Apple Intelligence finally gets China approval.

Mira Murati's Thinking Machines debuts Inkling, a 975B open-weights multimodal AI model, while xAI open-sources Grok Build amid data privacy controversy and Apple eyes China expansion via Qwen.