Pay for what you build,
not for idle.
Start free — a real Linux box with a coding agent on it, our models smart-routed and voice included. When you need more, add credits: they buy model time and extra hours. No plan to pick, nothing recurring.
Every account starts on the free tier — a real Medium box, 25 active hours/mo and about two hours of real agent work. No card.
Free tier · test the basics
| Machine | Medium · 4 GB |
| Active hours | 25 /mo |
| Models | all of them, smart-routed |
| Voice | included |
No bill to run up. When the month's hours are used the box rests until the 1st, files untouched — or add credits and carry straight on. Boxes idle for two weeks are recycled (we email you 3 days before). Seats limited.
Start free →Then, only if you need it
| Credits | Buy |
|---|---|
| Starter | $10 |
| Plus | $25 |
| Pro | $50 |
| Max | $100 |
$10 is roughly 16 hours of typical agent work — about 3 if you are really pushing it — or 67 hours of extra box uptime, or any mix. Credits pay for both: model time past the free allowance, and box hours past the free 25. They don't expire into a subscription and there's nothing to cancel. Prefer your own model key? Point the box at it and skip credits entirely.
Pay for the model each task needs
Managed model cost spans 12× from cheapest to frontier. Auto grades every request and routes it down the ladder — so a rename never costs what an architecture does.
A typical session — smart-routed vs. always-max
The Auto ladder
| Difficulty | Model | Best for |
|---|---|---|
| Trivial | Gemini Flash | chat, one-liners |
| Simple | Fugu | small edits, lookups |
| Moderate | Sonnet 5 | multi-file features, debugging |
| Hard | Opus 5 | architecture, complex reasoning |
| Expert | Fugu Ultra | large-scale, research-grade |
Zero idle cost
Boxes stop after ~15 min idle and wake in seconds, so you only burn hours when you're actually working. The free tier includes 25 active hours a month; past that, credits buy more hours at about 15 credits an hour.
Metered to the token
An included monthly allowance, then transparent per-model pricing. No surprise frontier bills.
Bring your own
Point the box at your own OpenAI-compatible key and skip our models and credits entirely.
Ready when you are.
Spin up your private agent box in minutes — or kick the tires for free first.
Start building →