01The New Frontier of Post-Training: Multi-Teacher On-Policy Distillation [AI Models & Research]Nathan Lambert and Finbarr Timbers trace how frontier post-training has shifted from SFT→RL to MOPD: train domain-specialist models, then distill into one general student via reverse-KL minimization. → source
02Red-Team Study of Anthropic Fable 5 & Opus 4.8 Models [AI Models & Research]A comprehensive adversarial evaluation of Anthropic's Fable 5 and Opus 4.8 across 7,826 harmful intents using the HackAgent framework. → source
03Looped World Models: Trading Depth for Iteration [AI Models & Research]LoopWM introduces looped architectures for world models, resolving the tension between long-horizon simulation quality and compute cost. → source
04Fixed-Point Reasoners: Stable Looped Transformers [AI Models & Research]Looped transformers offer compositional reasoning but suffer training instability. Fixed-Point Reasoners add convergence guarantees for adaptive-depth inference. → source
05Critical Copilot Flaw Let Attackers Steal 2FA Codes via SearchLeak [AI Tools & Ecosystem]Varonis disclosed SearchLeak, a max-critical M365 Copilot vulnerability chaining prompt injection, thinking-phase DOM bypass, and Bing trampoline relay. → source
06ChatGPT's Market Share Drops Below 50% for the First Time [AI Tools & Ecosystem]Sensor Tower shows ChatGPT at 46.4%. Gemini holds 27.7% and Claude 10.3%. Anthropic leads monetization with 13% paid-conversion rate. → source
07Probably Raises $9M to Tackle AI Hallucinations with Deterministic Validators [AI Tools & Ecosystem]Backed by a16z, Probably wraps LLMs in a deterministic harness achieving near-perfect accuracy on models four classes weaker than frontier. → source
08Qwen3.6-27B Is a Capable Local Coding Model, Says llama.cpp Creator [AI Tools & Ecosystem]Georgi Gerganov reports using Qwen3.6-27B daily for coding tasks on local hardware — a signal that mid-range open models are becoming genuinely useful. → source
09SpaceX Acquires Cursor for $60B in Stock Days After IPO [AI Applications & Industry]SpaceX acquires AI coding startup Cursor in a $60B all-stock deal, fulfilling an April agreement. Cursor will bolster SpaceX's struggling xAI division. → source
1060% of US Consumers Say AI in Brand Messaging Is a Turnoff [AI Applications & Industry]WordPress VIP survey: 60% view AI branding negatively, 86% want original sources. Meanwhile 74% of enterprises prioritize AI discoverability. → source
11DeepMind Partners with UK Government to Halve Planning Application Times [AI Applications & Industry]Google DeepMind is building an AI planning prototype with the UK government, piloting in Barnet, Camden, and Dorset. → source
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