Environments at scale, made for AI research

A single platform of cloud browsers, sandboxes, and desktops to run the RL rollouts, agent evaluations, and training environments that frontier research runs on.

BUILT FOR PRODUCTION

Built so your experiments don’t break

Dedicated kernel per run

Every sandbox and desktop runs in its own microVM with a dedicated kernel and hardware-backed isolation (KVM), so rollouts can’t interfere with each other or the host, and untrusted code stays contained.

Snapshots and forks

Capture memory and disk state at any step, restore in under a second and fork into parallel workers. Resets and branching rollouts stop being the bottleneck.

Reproducible environments

Pin your image with templates, mount persistent volumes and replay any browser run click by click. Reproduce a failure or a score exactly, across checkpoints and teams.

Scale to the fleet

Run thousands of environments concurrently, up to 100,000 on Enterprise, billed per second while they run. Capacity follows your training loop instead of your quota.

USE CASES

Automate rollouts, evaluations, and environment setup without maintaining infrastructure

Run RL rollouts at scale

Enable your training loop to launch thousands of isolated sandboxes in parallel, each a fresh microVM with its own kernel. Sandboxes start from a template in about 90 ms, so rollout throughput is bound by your model, not your infrastructure.

Build agent environments

Automatically provision realistic web and desktop environments for agent training and evaluation. Every episode gets a real Chrome session or a full Linux desktop with a live screen, restored from the same snapshot so each run starts from identical state.

Reset and fork from any state

Enable your agents to snapshot a sandbox or desktop at any step and fork it into independent workers for retries, branching rollouts and counterfactual runs. Environments restore from memory snapshots in under a second, so resets cost almost nothing.

Evaluate agents reproducibly

Automatically run your benchmark suites against the same prepared environment every time. Templates and persistent volumes pin the image, files and tooling, and browser runs replay click by click, so scores stay comparable across checkpoints.

Execute model-generated code safely

Enable your agents to run untrusted, model-generated code and test suites inside hardware-isolated microVMs. Every run gets a dedicated kernel and is destroyed on completion, so a runaway or malicious program never touches your infrastructure or another run.

Collect and verify trajectories

Automatically gather browsing trajectories from the real web and verify outcomes at scale. Stealth browsers bypass bot detection and record every session, while sandboxes grade the results, so training data scales without a fleet to maintain.

PRODUCTS

One platform. Everything your training and evaluation loops need to scale

Browsers, sandboxes and desktops from one API. Give every agent the environment it needs without stitching together separate infrastructure.

Cloud Browsers

For agents that need to browse, authenticate, scrape, and interact with the web.

8ms to spin up

Cloud Browsers

For agents that need to browse, authenticate, scrape, and interact with the web.

8ms to spin up

AI Sandboxes

For agents that need isolated compute to run code, execute tools, and process workloads.

90ms to spin up

AI Sandboxes

For agents that need isolated compute to run code, execute tools, and process workloads.

90ms to spin up

Computer Desktops

For agents that need to control applications, navigate full operating systems, and complete complex computer workflows.

0.78ms to resume

Computer Desktops

For agents that need to control applications, navigate full operating systems, and complete complex computer workflows.

0.78ms to resume

Give every agent
a place to work

Browsers, sandboxes and desktops from one API. Start free and scale when you need to.