Analyze documents & web content with GPT-4o Q&A assistant

Name: Analyze documents & web content with GPT-4o Q&A assistant
Availability: InStock
Author: Aadarsh Jain

Analyze documents & web content with GPT-4o Q&A assistant preview

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Important notice

This workflow is provided as-is. Please review and test before using in production.

Overview

Document Analyzer and Q&A Workflow

AI-powered document and web page analysis using n8n and GPT model. Ask questions about any local file or web URL and get intelligent, formatted answers.

Who's it for

Perfect for researchers, developers, content analysts, students, and anyone who needs quick insights from documents or web pages without uploading files to external services.

What it does

Analyzes local files: PDF, Markdown, Text, JSON, YAML, Word docs
Fetches web content: Documentation sites, blogs, articles
Answers questions: Using GPT model with structured, well-formatted responses

Input format: path_or_url | your_question

Examples:

/Users/docs/readme.md | What are the installation steps?
https://n8n.io | What is n8n?

Setup

Import workflow into n8n
Add your OpenAI API key to credentials
Link the credential to the "OpenAI Document Analyzer" node
Activate the workflow
Start chatting!

Customize

Change AI model → Edit "OpenAI Document Analyzer" node (switch to gpt-4o-mini for cost savings)

Adjust content length → Modify maxLength in "Process Document Content" node (default: 15000 chars)

Add file types → Update supportedTypes array in "Parse Document & Question" node

Increase timeout → Change timeout value in "Fetch Web Content" node (default: 30s)

Aadarsh Jain

2 workflows

Nodes

@n8n/n8n-nodes-langchain.chattrigger n8n-nodes-base.code n8n-nodes-base.if n8n-nodes-base.readbinaryfile n8n-nodes-base.httprequest n8n-nodes-base.extractfromfile @n8n/n8n-nodes-langchain.lmchatopenai @n8n/n8n-nodes-langchain.agent

Complexity

intermediate

Published 15 Oct 2025

Likes 0

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Install path: /data/workflows/9651/9651.json

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Analyze documents & web content with GPT-4o Q&A assistant

Workflow preview

Important notice

Overview

Document Analyzer and Q&A Workflow

Who's it for

What it does

Setup

Customize