Andrew KayAdd Axios as your preferred source tosee more of our stories on Google.Illustration: Lindsey Bailey/Axios1. Fast action AI software: OpenAI launched Sites, a Codex feature that lets your staff create, host and deploy work-related web apps from prompts internally — instantly.Why it matters: Custom software usually requires vendor contracts, engineering time or a long IT queue. Non-engineers can skip all that and build, ship and USE internal tools themselves.2. AI's cheaper future: Nvidia's RTX Spark and Microsoft's Project Solara aim to move AI inference from the cloud onto personal devices.Why it matters: Companies are starting to ration AI as token costs rise. Local AI will make usage less metered, like a shift from paying by the minute for long-distance calls to an unlimited plan.3. Physical AI's GPT moment: Nvidia unveiled Cosmos 3, a foundation model for physical AI.Why it matters: The first wave of AI read and wrote. The next has to see, move and react to power a factory robot reaching for a part. Trained on physics rather than text, Cosmos 3 aims to be the infrastructure for that shift.📈 If you're a CEO or on a CEO's team: Ask to join Jim's new weekly Axios C-Suite newsletter.