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 146 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, a workshop 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.