Features

Persistent, always-on environments#

Your server runs 24/7 in the cloud. Closing the browser does not stop the work - long builds and background agents keep going.

Claude Code and Codex are installed by default. The environment is open, so add Aider, the ChatGPT CLI, or any custom tooling you need.

Full root access to a real Ubuntu environment, isolated per user with its own filesystem and network.

Work from a zero-setup browser terminal, or connect over SSH with your own editor and dotfiles. Both are included with every environment.

Projects go live immediately on a .host4.ai subdomain. Bring a custom domain and SSL is provisioned automatically.

Environments are backed up daily to separate servers, so your work is protected against loss.

You own 100% of the code and can export it any time via git or SSH. No lock-in.

See how the tiers compare in Plans.