The only AI that can't train on you is the one that never leaves your machine. A technical guide to running models locally: runners, GGUF and quantization, VRAM vs Apple unified memory, and which models fit which hardware.
A handful of AI services start from the opposite premise: your conversations aren't fuel. We break down Venice, Awan LLM, Duck.ai, Brave Leo, Kagi, and Proton Lumo — what each guarantees, and what it costs (obtained August 2026).
Almost every big AI chatbot trains on your chats by default — you just never opted in. We audit the majors by their own privacy policies and list what each paid plan costs (obtained August 2026).