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View our Pricing page for more information on our pricing plans.

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What is a Fleet run?

A LangSmith Fleet run is a complete invocation of a Fleet agent, initiated by the receipt of a message or event, whether triggered automatically or sent manually. A Fleet run includes any message delivered to the agent through configured triggers (including third-party integrations or other connected services) as well as messages sent directly through the Fleet user interface (for example, via the chat interface). A Fleet run is counted if the invocation succeeds or is interrupted. Resuming execution after a human-in-the-loop interruption constitutes a separate Fleet run. An execution failure does not count as a Fleet run.

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Are model costs included with Fleet pricing?

No. Model usage is billed separately by your model provider. Fleet lets you choose the model you want (for example, Anthropic, OpenAI, Gemini, or another provider) and connect it using your provider API key. For more information on configuring models, see the Workplace setup page.

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Are agent tools included with Fleet pricing?

Fleet includes built-in tools and supports connecting third-party tools via a remote MCP server. Third-party tools typically require you to authenticate with your account, and any fees or usage charges are billed by the third-party provider. For more information on setting up tool keys, see the Fleet setup page.

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Are Fleet runs automatically traced in LangSmith, and do they count toward billing?

Yes. Every Fleet run is automatically traced in LangSmith. These traces are attributed to the user’s account and count toward usage-based billing under the customer’s LangSmith plan.

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How do I disable Fleet?

If you are on a self-hosted LangSmith instance, you can disable Fleet by setting the following to false in your values.yaml: 
backend:
  agentBootstrap:
    enabled: false

config:
  agentBuilder:
    enabled: false

agentBuilderToolServer:
  enabled: false

agentBuilderTriggerServer:
  enabled: false
If you are on cloud LangSmith, reach out to our Support team to disable Fleet.
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