Every AI name you've heard is one of a few kinds — a company, a model (the brain), an app (what you open), an agent (does work for you), a platform (for developers), or a plan (what you pay). Each company's card sorts its products onto exactly those shelves:
You're seeing the essentials — the names everyone hears. The button up top opens the full atlas. Click anything for a plain-language card; try a story below ↓
Every AI product is a harness wrapped around one or more model brains. The brain is general — the specialization lives in the harness.
So Replit and Claude are the same kind of thing — apps. Claude's maker also makes its brains; Replit rents everyone's and pours its craft into the harness: the best rented brain still can't host, debug and deploy your app — Replit's harness can. And some do both: SKT's A. (Adot) runs its own A.X brain plus rented GPT, Claude and Gemini.