W42 Weekly: OpenAI-Broadcom strike 10GW custom chip deal, Claude 4.5 Haiku achieves frontier performance at 1/3 cost, TSMC Q3 profits surge 39%, Wikipedia traffic falls 8% due to AI search, Google DeepMind enters fusion energy, Walmart-OpenAI revolutionize e-commerce, EU issues first AI Act fine, AI infrastructure investment enters trillion-dollar era

📋 Quick Takeaways

• Google DeepMind partners with Commonwealth Fusion Systems to accelerate clean fusion energy using AI for plasma simulation
• EU issues first-ever AI Act fine of €12 million to French facial recognition startup, marking enforcement era
• Google AI reveals breakthrough method for identifying cancer genetic drivers, transforming treatment approaches
• Meta Ray-Ban AI glasses drive EssilorLuxottica shares to all-time high with 9% surge on explosive demand
• Only 13% of enterprises have mature AI strategies according to Cisco’s 2025 AI Readiness Index
• Tesla unveils Cybercab fully autonomous robotaxi with no steering wheel, targeting $30K fleet pricing
• OpenAI faces scrutiny for investigating its critics, raising AI industry ethics concerns
• Instagram launches teen AI chatbot safety features including parental controls and self-harm topic restrictions
• Qualcomm releases upgraded Snapdragon X Elite platform with 25% performance boost for AI-powered laptops
• South Korea cancels AI textbook initiative, signaling education policy reassessment

---

🔬 Scientific & Energy Breakthroughs

Google DeepMind Accelerates Fusion Energy with AI Partnership

Google DeepMind announced a strategic partnership with Commonwealth Fusion Systems (CFS) on October 17, 2025, to leverage artificial intelligence in advancing clean fusion energy development.