This week in AI: OpenAI’s bumpy GPT-5 rollout gives way to soaring adoption, new model modes, and a 196k context window. Apple rebuilds Siri and readies AI home devices, while NVIDIA champions "physical AI" at SIGGRAPH. Meta faces policy backlash even as it hires top researchers. Geopolitics heat up with U.S. chip tracking and India’s IndiaAI Mission. Google pushes on-device with Gemma 3 and Gemini memory. Funding surges (Cohere, Anthropic), new AI gadgets arrive (HTC, Telekom), and research spans SWE agents to AI-designed antibiotics. Plus: compute bottlenecks and trillion-dollar data centers.