About
A map, not a directory.
Atlas is Comet Lab's map of the tools that go into a working AI system. The internet already has long lists of AI tools. A list tells you what exists; it doesn't tell you where a thing fits, what it's good at, or what you'd reach for instead. Atlas is built to answer those questions.
It is deliberately opinionated. Every fully written-up tool carries a plain reading of where it's ideally used, where it isn't, and — where we have one — a Comet Lab take from building with it.
How it's organised
A working AI system has layers. Atlas sorts every tool into one of 15 layers, grouped into four tiers — the surface people touch, the capabilities that turn a model into work, the model itself, and the infrastructure it runs on. The stack map shows that shape directly; the explorer lets you filter across all of it.
Written-up vs. stub
Of 148 catalogued tools, 146 have a full write-up today. The rest are stubs — catalogued and placed in the map, but not yet reviewed in depth. A stub is marked plainly so you know the difference. Atlas grows by turning stubs into write-ups, not by adding more names.
Who keeps it
Atlas is maintained by Comet Lab, an AI deployment company that applies AI to the work that runs companies. The views here come from building real systems with these tools — which also means they will change as the tools do.