ISSUE 23.26 • 2026-06-29 MICROSOFT 365 By Peter Deegan Give AI a chance to help you with any Excel or spreadsheet app. AI can greatly speed up your time spent working on a workbook — rom explaining functions and improving formulas to making a full sheet from your description. Any version of Excel, including perpetual […]

AI By Matthew S. Smith This might be hard to believe, but we’re now at least four years into the era of AI large language models — and perhaps up to nine, depending on your definition. OpenAI’s ChatGPT was released in 2022, GPT-3 was released in 2020, and the paper that defined the transformer architecture […]

PUBLIC DEFENDER By Brian Livingston The maker of the popular Claude large language model (LLM) — which became the number-one download from US app stores in February 2026 — recently announced a powerful service called Claude Mythos. The new LLM has reportedly discovered thousands of security holes in every major operating system and Web browser. […]