Your AI chats are a mess.
Offshoot fixes that.
Branch any idea sideways without losing the thread. Make Claude, Gemini and ChatGPT challenge each other. Keep one living memo, with every point traced to its source, that you can publish and print.
Same prompt, three fresh chats
“Platform bundling re-accelerates net-new ARR within 12 months.”
Long TENB vs S&P 500
Living memo · v3 · 5 chatsCatalysts
- Net-new ARR and bundle attach rates are the signals to watch.C2·R1
- Models split on timing; ChatGPT flags free bundling by larger platforms.C3·R1C5·R1
What changed in v3
- Added the cross-model verdict to the risks section.
- Moved “insider selling” into open questions.
Chat is a straight line. Thinking isn't.
Every serious question turns into a tree of smaller ones. Today that tree lives in your head, spread across hundreds of chats that don't know about each other.
Go deeper and you lose your place
Three replies in, you want to revisit an idea from the first. You either derail the thread or start over in a new chat and lose the context.
Your research is split across apps
Part of it is in Claude, part in Gemini, part in ChatGPT. None of it links up, and finding last month's answer means scrolling.
You can't tell when a model is wrong
One model answers with confidence. Checking it against another means copying prompts between tabs and comparing by hand.
From scattered chats to a finished answer.
Every project moves through the same five stages, on a board you can see at a glance.
- 1
Frame
Name the question. Pick a template: research, investment thesis, decision or strategy.
- 2
Explore
Chat as usual. Branch from any message or passage into a new chat, on any of the three AIs.
- 3
Challenge
Send a claim to every model at once, compare the answers side by side and get a verdict.
- 4
Synthesize
Claude writes a living memo from the whole project. Every point is traced to the message it came from.
- 5
Ship
Publish the memo to one ongoing Claude artifact, or print it to Word, PDF or slides.
Everything lives where you already chat.
Offshoot is a Chrome extension. It adds a few buttons under each message and a side panel. There's no new app to move into.
Branch sideways
Select a passage, ask the side question and open it in any AI. The new chat gets a short recap and links back to where it came from.
Cross-model challenge
One claim goes to Claude, Gemini and ChatGPT in fresh chats. A verdict shows where they agree, where they split and what all three missed.
Living memo
A memo that updates as your chats grow. It keeps a version history, a “what changed” list and a source code like C2·R1 on every point.
Mind map and map
See the memo as a mind map, and every chat as a map of branches that open to the right, like pages in a book.
Projects and board
Group related chats into projects that move from Frame to Ship. An inbox catches every chat that isn't sorted yet.
Margin notes and tasks
Annotate any message. Open questions from the memo become tasks, and any task can become a new branch.
Publish and print
Keep the memo as one ongoing Claude artifact, or export Word, PDF, slides or Markdown in a click.
Local-first
Your chats stay in your browser. Nothing leaves it except what you send to the AI sites yourself.
Uses your subscriptions
Runs on the Claude, Gemini and ChatGPT plans you already pay for. An Anthropic API key is optional, for memos that update in the background.
Research
Question → Explore → Challenge → Synthesize → ShipAnswer a question with evidence from many chats.Investment thesis
Idea → Research → Bull / bear → Thesis → PitchTicker, long or short, benchmark and horizon built in.Decision
Frame → Options → Challenge → Evaluate → DecideWeigh options and land on a call.Product / strategy
Problem → Explore → Challenge → Plan → ShipShape a plan for a product or business.The layer above every AI you use.
Other tools organize chats, branch inside one app, or ask you to move to a new canvas. Offshoot links your existing chats across all three and turns them into a finished answer.
| What you need | Offshoot | Built-in branching | Chat organizer extensions | Canvas AI apps |
|---|---|---|---|---|
| Works in the Claude, Gemini and ChatGPT you already use | Yes, all three | One app only | Yes | You move into their app |
| Branch a side question with context | Yes, into any of the three | Within that app | No | Yes |
| Ask several models at once and get a verdict | Yes | No | No | Several models; verdicts vary |
| A living memo with a source on every point | Yes | No | No | Varies |
| Print to Word, PDF and slides | Yes | No | Chat export | Varies |
| Keeps your chats on your own computer | Yes | Stored by the provider | Varies | Stored by the app |
Categories reflect publicly listed features of representative products as of November 2026.
Billions of people now think with AI. Their work is stuck in chat logs.
Usage is huge and split across providers, and no provider will build the neutral layer that connects them. Offshoot is that layer: it starts in the browser and works across every model.
Why now
Heavy users already pay for more than one assistant and copy context between them by hand. Each provider improves branching inside its own app, so the cross-model layer stays open.
Business model
Free to start, paid for power users and teams. Pricing is still being validated.
The raise
Roadmap: Chrome Web Store launch, sync and team workspaces, then more AI apps beyond the browser.
Bring order to your next hundred chats.
Join the waitlist
Get the Chrome Web Store release and Pro features first. It takes thirty seconds.
Try the beta now
The working extension for Chrome on desktop.
Version 1.4 · Chrome on desktop · free
- Unzip the file.
- Open chrome://extensions and turn on Developer mode.
- Click Load unpacked and choose the unzipped folder.
- Pin Offshoot, then open any Claude, Gemini or ChatGPT chat.
Good to know.
Where do my chats go?
They stay in your browser's own storage on your computer. Offshoot sends text only to the AI sites when you branch, challenge or update a memo, plus to Anthropic's API if you add your own key.
Which AI apps does it work with?
Claude, Gemini and ChatGPT in Chrome on desktop. Each site has a small adapter, so more can be added.
Do I need an API key?
No. Memos and verdicts run in a normal Claude chat on your existing plan. A key is optional and lets memos update in the background.
What does “living memo” mean?
One document per project that Claude rewrites as your chats grow. It keeps every version, lists what changed, and links each point back to the exact message it came from.
Is it free?
The beta is free. Paid plans for power users and teams are planned.