OpenAI is updating ChatGPT with company-specific knowledge, while Microsoft is overhauling Outlook with AI and adding new features to Notepad. YouTube is also leveraging AI, adding video upscaling to its TV app. The AI boom has driven Nvidia's valuation to a record $5 trillion, with its CEO dismissing bubble concerns. In medical research, Israeli scientists are using AI to predict epilepsy post-stroke. In other news, SAP has acquired Israeli startup Gigya for $350 million, and Israel is reportedly in talks with Elon Musk to deploy Starlink in Gaza.https://www.theverge.com/news/806046/openai-chatgpt-company-knowledge-updatehttps://www.calcalist.co.il/calcalistech/article/hygk5vralehttps://www.calcalist.co.il/calcalistech/article/hjrnvxaclehttps://www.theverge.com/tech/806162/microsoft-outlook-ai-overhaul-notepadhttps://www.calcalist.co.il/calcalistech/article/rkr200x00xehttps://arstechnica.com/ai/2025/10/nvidia-hits-record-5-trillion-mark-as-ceo-dismisses-ai-bubble-concernshttps://arstechnica.com/gadgets/2025/10/tv-focused-youtube-update-brings-ai-upscaling-shopping-qr-codes