Caspian is your One-person Venture Studio

Most AI builders stop at code. Caspian takes each idea all the way to real users, and lets you run many of them side by side.

Say it roughly. Caspian works out what you mean.

Type an idea the way you'd say it. Caspian turns it into a detailed plan, asks a quick question if something's unclear, and only then starts building.

A detailed plan before any build
Clarifying questions on vague requests
Big jobs split into steps

The right model, every time.

A small tweak doesn't need the most expensive model. Caspian matches each change to the right one and shows you the cost, tokens and time before anything runs.

Cost and time estimate up front
Fast, cheap models for small changes
Live pricing for every model

It remembers what you're building, and who for.

Every project keeps a product context and a user context. Copilot reads them on every request, and you can edit them anytime. Switch projects and pick up exactly where you left off.

Product and user context per project
Saved chat history
Roll back to any version

What people are building with Caspian.

Everyday tools, games, dashboards and more.

Nothing published yet. Projects show up here as people ship them.

Explore all projects

Launch it for real.

Hit Publish and your project is live at its own address. Turn on sign-in, let your users run their own spaces, and watch page views come in. Accounts sync both ways between your machine and the live site.

Sign-in and user accounts
Spaces with admin and member roles
Page-view analytics
Password-protect or take it down anytime

Find your first users.

Send outreach from your own email address. Caspian paces your sends within daily limits and tracks replies, bounces and opens for you.

Your own SMTP, no third-party sender
Pacing and daily limits
Replies, bounces and opens tracked

Just Scaffolding

Free

Run Caspian on your machine and build projects yourself.

Use with your existing AI tools (Claude, Codex, etc). Point them to your workbench and ask them to follow docs.
Git backups to your own repo.
Publish up to 5 projects, with a "Made with Caspian" badge (sign-in required).