Why this, not that

Pick the shape that fits your work.

There are a lot of AI tools right now. They aren't the same shape. Here's how Replace OS maps against the four products our users tell us they evaluated first.

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Capability	Replace OSDesktop AI company	ChatGPTSingle assistant	Claude DesktopOne agent, local folder	CrewAIFramework for devs	LindyCloud AI employee
A team that coordinates		One assistant	One assistant	Yes, you wire it	Flat agent list
Per-agent memory that lasts		Shared per-user	Per-project	You build it
Multi-agent peer review				You design it
Background routines that run themselves				You schedule it
Native desktop app	Mac + Windows	Wrapped web app	Mac + Windows
Files & memory on your computer			Folder-scoped	You decide
Sandboxed shell, fenced per employee		Remote VM	Whole folder	You build it	Cloud computer
Risky actions pause for your OK				You wire it	Some flows
Use any AI model (yours or ours)		OpenAI only	Anthropic only		Provider-managed
No API keys, no JSON, no setup		Sign in	Sign in + folder		Sign in + connect apps
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Coming from…

The honest take, product by product.

ChatGPT
Single assistant you already use
“Chat gives you one assistant. We give you a team.”
One thread, one personality, one task at a time. Replace OS runs a small org instead — a CEO who routes, specialists who report, and per-employee memory that survives between sessions.
Replace OS vs ChatGPT
Claude Desktop
Local sandbox for one assistant
“A sandboxed folder is a start. An org chart is the product.”
Cowork gives one Claude a folder on your Mac and a scheduler. Replace OS gives you a whole roster on the same local-first floor — and the CEO routes work so you don't pick which agent to ask each time.
Replace OS vs Claude Desktop
CrewAI
Python framework for developers
“An app, not a framework.”
CrewAI (and AutoGen, LangGraph) are Python toolkits you assemble in code, then deploy yourself. Replace OS is a Mac and Windows app you install in 30 seconds — the team is already wired up, and you talk to it by DMing the CEO.
Replace OS vs CrewAI
Lindy
Cloud AI employee with many integrations
“Local-first employees, not a cloud computer.”
Lindy runs in the cloud against thousands of integrations. Replace OS runs on your machine against the folder you already work in — curated tools, no integration sprawl, and nothing leaves your device.
Replace OS vs Lindy

Private beta

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Pick the shape that fits your work.

The honest take, product by product.

ChatGPT

Claude Desktop

CrewAI

Lindy

Run your company by direct message.