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Usage

cassian down [name] [options]
Saves your workspace to cloud, then stops the instance and releases the GPU.

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Options

FlagDescription
-f, --forceExit immediately after sending the stop request — don’t wait to confirm

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Arguments

ArgDescription
<name>Instance name (optional — defaults to name in cassian.yaml)

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Confirmation polling

By default, cassian down waits up to 30 seconds to confirm the instance actually stopped before returning. This makes it reliable in scripts. Use --force to skip waiting: 
cassian down --force
cassian down my-instance --force
Useful in CI pipelines or cleanup scripts where you don’t need to block on confirmation.

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What gets saved

  • Everything in /workspace (code, scripts, outputs)
  • Folders listed under workspace.no_sync
Not saved: pip packages, installed system packages, anything in workspace.exclude.

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Data safety

Your workspace is saved before the container stops. If the save fails, the instance stays running and you get an error rather than losing data.

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Billing

Billing stops as soon as the instance stops. You are not charged while the instance is off.