Getting started

1. Spin up an environment#

2. Describe what you want to build#

Use the AI Builder (default model: Claude Sonnet 4) and describe your idea in plain English. The agent scaffolds, builds, and iterates on the project inside your environment.

3. Work in the terminal or over SSH#

Open the browser terminal for a zero-setup shell, or connect over SSH to use your own editor and tooling. You have full root access to the machine.

4. Deploy#

Your project goes live immediately on a <name>.host4.ai subdomain. Point a custom domain at it whenever you like - SSL is handled automatically.

5. Keep or export your work#

Everything is yours. Pull the code down over git or SSH at any time - there is no lock-in.