LM Studio Simple Message icon

LM Studio Simple Message

Send messages to LM Studio with optional JSON schema for structured outputs

LM Studio Simple Message

AI-generated

Summary

Send a user message to a specified LM Studio model and receive a generated response, optionally enforcing output structure with a JSON schema.

Inputs

  • Model Name or ID (required) — Select or specify the identifier of the model to use, fetched dynamically from your LM Studio server.
  • Message (required) — The text message to send as user input to the selected model.
  • JSON Schema — Optional JSON schema to enforce a structured output format from the model. Use an empty object '{}' for no schema.
  • Temperature — Number between 0 and 2 controlling output randomness; lower values produce more deterministic responses.
  • Max Tokens — Maximum tokens the model can generate. Leave blank to use the model's default limit.
  • Timeout (Seconds) — Maximum time to wait for the model's response, in seconds. Set 0 for no timeout.

Output shape

A list of items each containing a JSON object with the model's response under 'response' and metadata about the request under '_metadata'.

If a JSON schema is provided, the response is parsed and validated against it; otherwise, the response is raw text. Errors produce node execution failure unless 'Continue On Fail' is enabled, in which case an error message is returned for that item.

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