Summarise new form submissions with n8n's Form trigger and Basic LLM Chain

What you get

An n8n workflow that serves a hosted form and turns each submission into a short AI summary using the Basic LLM Chain node.

Prerequisites

An n8n Cloud or self-hosted instance
A chat model credential (for example OpenAI or Anthropic), or Gateway credits on n8n Cloud

Steps

Create a new workflow and add the n8n Form trigger. Set Authentication to None, give the form a title, and add two fields labelled Name and Message.
Click + after the trigger and add Basic LLM Chain.
Set Prompt to Define below and paste this into Prompt (User Message):

Text

Summarise this form submission in 2 sentences and label its intent as one of: question, bug, sales, other.

Name: {{ $json.Name }}
Message: {{ $json.Message }}

Under Chat Messages, add a System message: You are a concise support triage assistant.
Click the Model connector under the chain, add a chat model sub-node (for example OpenAI Chat Model), and pick your credential and model.
Optional: add a Slack, Gmail or Google Sheets node after the chain and map the chain's text output.

Test it

Click Execute Workflow. n8n opens the form on its Test URL; submit a message and check the chain output in the editor. When it looks right, use the Production URL and publish the workflow.