Privacy is the architecture
No account. No cloud.
Fully offline.
- Your computer is your account — nothing to sign up for, no passwords to manage.
- Every memory, document and conversation lives in one folder on your computer.
- The AI runs locally. Pithecus works perfectly without an internet connection.
- You own everything — move, back up, or delete your data any time you like.
What it does
A brain, not an app.
A living neural map
Every memory becomes a neuron in a 3D brain you can fly through. Watch ideas connect as synapses draw themselves between the people, places and projects of your life.
Workspaces for your life
Organise everything into areas like Radly, Tails Marketplace, Health, Ideas, or anything else that matters to you. Each workspace has its own memory, tasks, goals, and conversations. Nothing gets mixed. Everything stays where it belongs.
Chat that truly remembers
Ask it anything. When it recalls something about you, the memory glows amber in the brain — you can literally watch it think. Always scoped to the workspace you're in.
A daily briefing
A chief of staff for your life: today's priorities, deadlines that walk toward you — "prepare for the meeting tomorrow", "it's today" — and patterns worth noticing.
A Life OS that turns thinking into action
Inside every workspace you can: save ideas and conversations as memory; turn any thought into a task instantly; track goals and progress over time; attach documents and context to projects. Everything stays connected — nothing floats alone.
Workspace Momentum Score
Every workspace carries a live score from 0–100 built from four signals: recency, task completion, goal progress, and memory growth. At a glance you know what's alive and what's drifting — no dashboard required.
Wake-up Intelligence
Come back after hours away and Pithecus greets you with a rich catch-up: what happened while you were gone, what's overdue, which goals have gone quiet, and one or two suggested actions to start moving immediately.
Agentic Intelligence
Turn a goal into a structured step-by-step plan; ask for three suggested next actions; or let Autopilot review the whole workspace and draft a bundle of tasks. Everything is a proposal you approve — nothing runs behind your back.
Built-in intelligence that stays in your pocket
Not a chatbot. A brain
that thinks ahead.
Three layers of intelligence — entirely local, entirely opt-in, and always showing its working before it does anything.
Wake-up Intelligence
Open Pithecus after a break and it knows you've been away. Instead of the normal briefing, it surfaces a personalised catch-up built from your real data:
- New memories formed while you were offline
- Overdue tasks and goals that have gone quiet
- The workspace that's been idle longest
- Intent memories you captured but never turned into tasks
Zero LLM calls — built from your own data, so it's never wrong.
Workspace Momentum
Each workspace carries a 0–100 score built from four real signals:
- Recency — how recently you added anything
- Tasks — how many you've completed in the last 30 days
- Goals — average progress across all goals
- Memories — steady growth in the last two weeks
The score appears as a live progress bar inside the workspace panel — labelled quiet, building, or strong.
No targets, no gamification. Just an honest read on where your energy is going.
Agentic Intelligence
Inside any workspace, a dedicated intelligence section lets you:
- Turn a goal into a plan — type a goal, press Plan, get a structured multi-step proposal
- Suggest next actions — one click, three scoped suggestions drawn from your workspace context
- Workspace Autopilot — a full review: summary, focus, draft tasks, optional note
- Turn any memory into a task — one button in the memory detail panel
- Proactive suggestions — stale goals and unacted intents surface in your daily briefing
The LLM proposes. You approve. Every task created links back to the memory it came from.
The moat
Memory you can trust.
Pithecus only saves what you approve — you stay in control of every memory, every fact, every connection it makes.
- New facts wait in a review queue — "Pithecus thinks you said X. Keep it?"
- Every memory is editable in place, archivable, or forgettable forever.
- Source linking: "learned from a conversation on Jun 11" — trust it, or undo it.
- Duplicates merge instead of multiplying.
The loop that powers Pithecus
Thought → Memory → Insight → Task → Completion → Review → Better thinking
Everything you do feeds back into your brain.
What is a second brain AI?
A second brain that actually remembers.
A second brain AI is a personal system that captures what you think, connects it over time, and helps you act on it later. Pithecus goes further: every fact becomes a node in a living 3D map, scoped to workspaces like Radly or Health — so ideas never get lost in a generic chat log.
Offline AI assistant for Mac
Personal AI assistant — fully local, no cloud.
Pithecus is a local AI assistant for Mac that runs through Ollama on your machine. Unplug the network and it keeps working. No account, no subscription, no data leaving your computer — a privacy-first AI assistant built for people who value keeping their data to themselves.
AI that remembers your life locally
Offline AI that remembers everything you tell it.
Tell Pithecus once — your business, your dog, your goals — and it stores it as structured memory inside your private brain. Come back weeks later and ask about Radly, a deadline, or a half-formed idea; it recalls the right context and turns it into tasks. An AI memory app that compounds with every conversation.
See it think
Watch memory become action.
A brain builds itself, lights up while answering, and stays private the whole time.
How it begins
Three steps to a second brain.
- 01
Touch the spark
Install, and watch your brain be born — 15 seconds of genesis.
- 02
Teach it
A few sentences about your life become your first memories.
- 03
Let it grow
Every chat, note and document makes it more yours. Forever offline. On Mac and PC.
Your brain is waiting.
Pithecus runs on Mac and PC. Join the early access list — you'll get your download link the moment we launch.
Runs entirely on your machine · No cloud · No spam