Cortex indexes every note into a private graph and answers questions with citations to your own thinking. Retrieval-augmented memory — embeddings on device, nothing phoning home.
You leaned annual-only for the pilot — monthlies stayed off “to keep the surface calm.”37
3 citations from your notes · 38 ms
No prompt engineering. Ask the way you'd ask a colleague who read everything you wrote.
Embeddings, graph, and answers are computed locally. Sync is encrypted and optional.
p50 recall over 12,480 notes. Your graph answers before you finish blinking.
Notes, PDFs, transcripts, bookmarks. Every save embeds itself and finds its neighbours in the graph — no tagging ritual.
Questions walk the graph and return synthesized answers, every claim pinned to the note it came from.
Every answer can be kept as a new note. Your second brain gets smarter at your specific life.
“Our research team lives in Cortex. The graph is the documentation.”