You re-explain yourself every time.
Every new chat opens at zero. The model has no memory of what you built together yesterday, so you rebuild the context by hand — again — before you can even begin.
A second brain for ChatGPT & Claude
Think in a map, not a scroll.
ChatGPT and Claude pull your sharpest thinking out of you — then bury it in an endless scroll across two apps. Lattice maps every conversation the moment it happens. Search it, question it, and walk back into any idea in seconds.
Add to Chrome — it's free
✺ grab the lattice — give it a throw
01 The problem
AI hands you the answer — then quietly takes it back. Not on purpose. The chat window was simply never built to remember.
The one thread you need is under 200 others.
That breakthrough from three weeks ago is somewhere in the scroll. You search, give up, and re-ask it — getting a slightly worse version of an answer you already had.
Half your head is in ChatGPT. The rest is in Claude.
Two apps that never speak to each other. The connection between the idea you had over here and the one you had over there simply never gets to happen.
02 What you get
Five tools. One quietly obsessive idea: nothing you think should ever scroll away.
Lattice
Conversation Atlas
Every chat becomes a map you can walk.
Lattice redraws each conversation as a branch tree — prompts, edits, and tangents laid out in space instead of stacked in a feed. See the exact shape of how you reached an idea, then jump straight back to any turn you took to get there.
Lattice
One Library
ChatGPT and Claude, finally in one room.
Both assistants are captured automatically as you chat — no exports, no copy-paste, no setup ritual. One searchable shelf for everything you've ever asked, each thread tagged by where it came from and kept live as it grows.
Lattice
Ask Lattice
Ask your past self anything.
Pose a question in plain language and Lattice answers from your actual history — citing the exact chats it pulled from. @mention specific conversations to put them side by side. It's research across your own mind, in a sentence.
Lattice
Edits & Branches
Keep every version. Even the ones you walked away from.
Re-rolled a reply? Reworded a prompt five times? Lattice preserves every edit and fork — including the paths you didn't take — so you can find the road not travelled and pick it back up the day it turns out you were right the first time.
Lattice
Thinking Clusters
Find the question you keep circling.
Lattice quietly groups related conversations into themes and surfaces the tensions you return to but never resolve — "positioning the product," "build vs. buy." The patterns in your own thinking you were standing too close to notice.
03 How it works
You don't set it up. You just keep thinking.
1
Install once.
Add Lattice to Chrome. That click is the entire onboarding — there isn't a step two to dread.
2
Chat like you already do.
Keep using ChatGPT and Claude exactly as before. Lattice maps everything in the background, the moment it happens.
3
Open the map.
Your whole history is waiting — branched, searchable, connected. Summon it any time:
CtrlShiftK⌘⇧K on Mac
04 Privacy
It all stays in your browser. Because it's yours. Local-first isn't a checkbox we added late — it's the only way we were ever willing to build this.
- Your conversations live on your machine. They sit in your browser's own storage. We never see them, because they never reach us.
- No servers in the loop. No telemetry. Nothing phones home. No quiet analytics build watching which threads you open.
- Bring your own AI key for Ask. It stays on your device and talks straight to the provider you pick — Claude, OpenAI, Gemini, or Groq.
- Delete anything, anytime. One click and it's gone for good. It was never stored anywhere else to begin with.
05 Pricing
Free to start. $8 a month. Or yours for life — while seats last.
Free
$0
Everything that makes it click.
- Map up to 50 conversations
- Full Atlas, Library, branches & clusters
- A daily allowance of Ask queries
- Local-first, always
Pro
$8/mo
When your history outgrows the free tier.
- Unlimited conversation mapping
- Unlimited Ask, with @mention scoping
- Weekly reports on how your thinking moved
- Everything in Free
Billed monthly via Gumroad. Cancel anytime.
Founding
$79.99once
Pay once. Use Lattice for the rest of your life.
Founding seats11 left of 50
- Everything in Pro — forever
- Every future update, free for life
- A founding-member badge, in-app
- First say on what gets built next
One-time $79.99 · When the 50th seat goes, Founding closes for good.
Your next idea is one you've half-had before.
Stop starting from zero. Give your thinking somewhere to live.
Add to Chrome — freeNo account · Your history never leaves your browser