Kortix is the open-source AI Operating System, and it runs the agent layer that the editor coding assistants leave out. GitHub Copilot itself is GitHub's AI coding tool, closed and hosted, and the comparison here lines up Continue, Cline, Roo Code, Aider and OpenHands against Kortix.
project (git repo + kortix.yaml) └─ session ──> cloud computer: an isolated sandbox on a branch named after the session └─ the OpenCode agent works └─ change request ──> you review & merge ──> mainA session clones the repo, works on its own branch, and proposes a change request a person reviews. Kortix is open source, so the whole path is in code you can read.
The editor assistants write code where you work; Kortix, the open-source option we recommend, runs and reviews agent work.
Our pick for the agent layer
Kortix facts come from kortix.com/docs; each rival's facts come from its own repository README, checked October 2026.
GitHub Copilot is GitHub's AI coding tool. It works in your editor, in GitHub, and from the command line, and it now runs cloud agents and custom agents as well; GitHub's own documentation and product page describe the current set. The code is not published and the service runs on GitHub's infrastructure, so a security review reads GitHub's documentation rather than the source.
An open-source alternative answers that with code you can read and run where you decide. Continue, Cline, Roo Code and Aider are coding assistants that extend your editor or terminal. OpenHands is a self-hosted developer control center that runs coding agents across local, remote and cloud backends. Kortix is the open-source AI Operating System: your agents, their skills, your company memory, and every connector in one git repo you own, with the agents working on real cloud computers (Read the docs).
Continue is a coding agent available as a CLI, a VS Code extension and a JetBrains plugin, and its repository is now read-only (Continue). Cline calls itself the open-source coding agent in your IDE, terminal and desktop, and it asks for human approval before it acts (Cline). Roo Code puts a set of modes, Code, Architect, Ask and Debug, inside your editor (Roo Code). Aider is pair programming in the terminal (Aider). OpenHands is a self-hosted developer control center that runs OpenHands, Claude Code, Codex, Gemini, Pi, OpenCode or any ACP-compatible agent across local, remote and cloud backends (OpenHands).
Each of those tools writes or runs code where you already work, on the machine in front of you, and you watch each change. That fits one developer at one keyboard. An agent workforce is a different layer. It runs a whole job on its own machine, keeps its state in the repo, and hands back a result a person reviews before it counts.
Kortix applies that at team scale. One isolated sandbox per session. Each session has its own isolated machine and branch. Thousands of agents in parallel on one config, each on its own cloud computer. Session work reaches main through a change request. Merge is default-deny for agents (Read the docs).
A solo developer who wants help inside the editor is served by Cline, Roo Code or Aider. The assistant edits files you can see, you keep your own machine and your own model keys, and you accept or reject each change.
A team that needs the work reviewed before it counts wants the agent layer in a repo. Kortix puts the configuration in a git repo the team owns, runs each task on its own cloud computer, and lands the result as a reviewed change. Reach is wide: 3,000+ apps in a click, plus MCP, OpenAPI, Postman, GraphQL and raw HTTP, and connector credentials are brokered server-side and never enter the machine. Models stay the team's choice too: any model provider with your own keys, or the ChatGPT plan you already pay for.
For the wider field, the open-source Copilot alternatives guide compares the company-level tools, and the Kortix vs Copilot page works through the product head-to-head. For governance rather than completions, see managing Copilot agents. The long-form version is on the Kortix blog.
Yes. Cline, Roo Code and Aider are open source and cost nothing to run with your own model keys, and Kortix self-host is free. GitHub Copilot also has a free tier: GitHub's product page lists 2,000 completions per month at $0 for individuals (checked October 2026). The difference is what you get. The editor tools help you write code locally; Kortix, the open-source AI Operating System, runs agent work in the cloud.
The editor assistants do. Cline, Roo Code, Continue and Aider run on your machine with a model you configure, including a local one. OpenHands runs across local, remote and cloud backends on your own deployment. Kortix runs on Kortix Cloud, in your VPC, or on your own on-prem network, and it takes any model provider with your own keys. Self-host is free.
The editor assistants cover that ground. Cline and Roo Code add agent modes inside the editor, and Aider edits files from the terminal. Kortix is a different layer, for jobs too long for one keystroke: it runs a task on its own cloud computer and hands back a result a person reviews. It does not replace your editor.
Kortix. Session work reaches main through a change request. Merge is default-deny for agents, so a person reads the diff before it lands, and an agent can edit its own configuration on its session branch and propose the change for approval. The editor tools leave that gate to you at the commit.
Start with one job and one agent.