What is Manus AI, and what does an open-source alternative give you?

What Manus AI is

Manus is a hosted general AI agent built by Butterfly Effect. Manus's own documentation describes it as "an autonomous general AI agent designed to complete tasks and deliver results," and calls the product a virtual colleague with its own computer. You sign in at manus.im, give it a goal such as a slide deck, a website or a research report, and it plans and executes the work in the vendor's cloud. In its announcement about joining Meta, Manus said the agent had processed more than 147 trillion tokens and powered over 80 million virtual computers. Kortix is the open-source AI Operating System: your agents, skills, memory and connectors live in one git repo you own, and each session runs on its own cloud computer.

Where Manus runs, and what a team cannot own

Manus runs in Manus's cloud, and a customer rents access to it. In that same announcement, Manus said it "will continue to sell and operate our product subscription service through our app and website," and that the company "will continue to operate from Singapore." Its own pages document no self-hosted install of the platform and no repository a team can hold. A team can run tasks inside Manus, but it does not receive the agent definitions, the memory or the connectors as files it controls. Kortix puts those in a git repo the company owns, and it can run on Kortix Cloud, in your VPC, or on your own on-prem network, with self-host free (self-host).

What open source changes for the platform you run

Open source changes what a team can inspect, keep and move. With a hosted agent, the vendor's build, its prompt handling and its data path are visible only through what the vendor documents. With Kortix, the code is open source: read it, fork it, audit it. The configuration is plain files in a repo, so a security team can review exactly what an agent may reach, and any model provider works with your own keys. That combination keeps the model choice a setting instead of a vendor decision. The comparison table on this page sets out where the hosted and open platforms differ.

What to look for when you need to own the stack

When a team has to own the stack, the questions are concrete. Where does the configuration live, in a product database or in files the team can diff and version. Where does a session run, on a shared service or on its own isolated machine. Which models can the team use, only the vendor's or any provider with its own keys. What happens when work is finished, does it land by itself or reach a person's review. Kortix answers these with files in a git repo you own, one isolated sandbox per session, any model provider with your own keys, and session work that reaches main through a change request. The Manus alternatives page walks through the field.

Choosing between a hosted agent and a platform you own

A hosted agent is the quicker start for one person with a task in front of them. A platform you own suits work that runs across a team, on your own infrastructure, under your own review. Kortix is the open-source AI Operating System for that second case: agents, skills, company memory and connectors in one git repo, each session on its own cloud computer, and work landing through a change request a person approves. If you are comparing the two products directly, Kortix vs Manus sets them side by side, and the FAQ answers the common questions.