[COMING SOON]

A runtime built around the agent session.

A session-first, fully stateful runtime for AI agents. Run for hours, wait for input, wake back up, and hand off cleanly between agents without writing a single line of state management.

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One session stepping across several machines

[SESSION-FIRST]

State is the runtime's job, not yours

Agents don't run like scripts. They run for hours, pause on a tool call, and pick up mid-task. The Agent Runtime keeps the whole session, process memory, filesystem and open work, as one unit that suspends to zero and resumes in about 25 milliseconds.

See how Sandboxes persist state

  • Runs for hours

    Long-running sessions with no 24-hour timeout and no cold-start tax when the agent wakes up.

  • Clean handoffs

    Pass a session from one agent to another with its full state, no serialization code.

  • Full observability

    Logs, traces and metrics for every agent run, out of the box.

  • Pay for active time only

    Suspended sessions cost only the standby snapshot storage rate.

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Spin up your first sandbox in under a second. Up to $200 in credits, no credit card required.

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