Give your AI a past.
hippocampOS builds a private memory graph from your email, meetings, notes, and files. One brain for each role in your life. Call one by name inside Claude or ChatGPT and the right context arrives.
Protected in transit. Google user data is not used to train generalized AI models. Deletion follows our published Privacy Statement.
The cost of repeated context
I pay per token
A typical session re-feeds 30,000 tokens of background before you ask your real question. hippocampOS sends 29. Heavy users avoid about 13.7M repeat input tokens a month. Retrieval runs on vector search alone. No LLM call in the path.
I pay a subscription
You don't pay per token, so the cost shows up somewhere else: slower answers and a usage cap that dies by 2pm! A 29-token slice instead of a re-read inbox keeps responses fast and your limits alive through the evening. And your brains are sealed. Client work never shows up in your personal chats.
hippocampOS in 60 seconds
01 / Collect
Connect the sources you already live in. Every useful detail becomes part of a memory that keeps compounding instead of vanishing when the chat ends.
02 / Organize
People connect to projects. Decisions connect to meetings. Facts connect back to evidence. Your memory becomes something you can traverse, not another archive you have to search alone.
03 / Understand
Invoke a named brain from Claude or ChatGPT. hippocampOS finds the relevant context, carries it into the conversation, and keeps every role of your life in the right scope.
“Invoke my Work brain. What changed since last week?”
04 / Remember
No more starting from zero. Your AI meets the version of you who remembers.
The whole memory system
Collect context once, organize it into durable memory, and bring the right part into every conversation.
Your context keeps compounding across conversations instead of disappearing when a window closes.
Bring the right slice of your projects, people, preferences, and history into Claude or ChatGPT when you ask.
See topics expand into facts and the raw sources behind them. Context stays connected and inspectable.
Keep work, personal life, research, and client context distinct. See the whole picture in Master Brain.
Facts retain their provenance, so you can move from an answer back to the material that supports it.
Choose what enters each brain, what your AI can retrieve, and what should be removed.
Memory you can see
Open any category, travel into its facts, and inspect the raw sources underneath. The graph makes your AI's context tangible.
Explore your own graphYour memory. Your boundaries.
Named brains keep contexts separate. Retrieval brings only the useful slice. Sources and memories stay inspectable and removable.
Plans for durable memory
Plans, prices, limits, and availability stay in sync with the current hippocampOS plan catalog.
Billed annually at $60/yr
For one role, one tool, one focus.
Billed annually at $180/yr
For the multi-hat operator.
Billed annually at $300/yr
For the indexer. Master Brain unlocked.
Annual plans show their monthly equivalent and are billed once per year. Your AI provider remains separate; hippocampOS provides the memory layer.
Stop reintroducing yourself
Build the context layer that gets more useful every time you use it.
Start building