If you're trying to give agents real work and control is what's stopping you, apply for early access today.
Every new account starts with $50 in free credits, enough to run an agent for a month, with no credit card needed.
Today we're announcing @runta's $20M seed, led by @a16z.
Software is constrained when you write it. Agents have to be constrained while they run.
Runta is the execution layer that controls what AI agents can actually do.
This is exactly why we built Runta: so teams can spend their time building the agent experience, not rebuilding runtimes, computer use, persistence, and execution infrastructure. Errand is what that leverage looks like: one developer, one week, and an open-source product you can
One of our engineers built Errand, our open-source take on Grok Bot and Muse, and wrote up how it came together. One developer, one week.
The app is ~4k lines of TS. Every agent still gets its own machine with a shell, a browser, and a filesystem that survives between tasks. He
Exo Harness now runs natively on Runta.
In FrontierHarness Eval, Exo was cheapest per completed task at $1.05. On the hardest task it hit its 51-step cap and quit at $1.46 while others kept spending.
That is the harness you let rewrite itself. Exo's Executor holds no durable
Wondering where your harness would land on the FrontierHarness leaderboard?
Last week the most common reply was "can I run mine on this."
Now you can.
Bring your harness and your own model key, and it runs on Runta under the exact conditions the leaderboard was built on: same