What is a second brain AI?
Capture once. Recall forever.
A second brain AI stores what matters — people, projects, ideas, goals — and connects it over time. Pithecus maps every memory as a glowing node in a 3D neural graph you can fly through. Unlike note apps or chatbots, it compounds: the more you tell it, the more it knows you.
Use cases
A second brain for real life.
Radly — your startup workspace
Drop product ideas, investor notes, and strategy threads into the Radly workspace. Pithecus remembers context across weeks — so you pick up exactly where you left off.
Ideas that don't die in notes
Say *"What was that feature idea for onboarding?"* and watch the memory flare amber in your brain. An AI memory app that surfaces what you forgot you knew.
Thought → task, automatically
*"I need to email the designer about the Radly landing page by Friday"* becomes a real task inside the right workspace. Your second brain doesn't just store — it moves you forward.
Obsidian alternative with AI
If you want a connected knowledge base that actually talks back — scoped to each area of your life, fully offline — Pithecus is built for that loop.
See it think
Watch a second brain build itself.
Memories light up while it answers. New facts grow into the graph in real time.
Build your second brain.
Early access on Mac and PC. Offline. No account. No subscription.
Free during early access · Runs entirely on your machine · No spam, just the download link