This edition goes one layer down, to the AI tools built for other AI: somewhere to keep an agent's context, one key to reach every model, a marketplace where agents buy their own data, a way to watch them in production, and a voice to speak with.

The AI landscape is not easy to file into neat categories. Data cleaning here, sales analysis there, access control in its own box.  This is a guide to 15 new categories we rank: what each one actually means and where the label hides more than it shows.