Mythex vs Bolt
Bolt is built for the fastest possible spike in a browser. Mythex is built for the spike to become something you keep.
The short answer
Choose Bolt when the goal is a throwaway prototype in the next ten minutes. Choose Mythex when the thing you build has to stay up, hold data, and still make sense in three months.
Pick Mythex when
- The project will outlive the prototype
- You need a real database and a URL you can hand to customers
- You want one credit balance covering both building and hosting
- You want to continue the build from Claude, Codex or Cursor
Pick Bolt when
- Absolute speed to a first preview is the whole requirement
- You may well discard the project after the demo
- You want their breadth of frontend frameworks more than a managed host
Side by side
| Mythex | Bolt | |
|---|---|---|
| Time to first preview | Fast | Very fast — browser runtime |
| Runs in | Cloud sandbox | Browser (WebContainer) |
| One-click publish and hosting | Yes | Yes |
| Database without a second account | Yes | Yes |
| Terminal and file tree | Yes | Yes |
| Drive it from Claude, Codex or Cursor | Yes, over MCP | Not documented |
| Agent remembers you across projects | Yes | Not documented |
| Export the code | Pro — ZIP or GitHub | Yes |
Questions
Is Mythex faster than Bolt?
Not to the first preview — Bolt runs in the browser and that is hard to beat. Mythex starts a real cloud sandbox, which costs a few seconds and buys you a terminal, a database, persistent hosting and a project that is still there next month.
Can I keep a Bolt prototype going in Mythex?
Describe what you built and Mythex will build it in a project with a database and a public URL. There is no direct import today.