🧾 Automated Invoice Processing with Mistral OCR + GPT-4o-mini

Automate the management of your invoices with this intelligent, end-to-end AI-powered workflow.

This advanced n8n workflow combines Mistral AI's powerful OCR capabilities with OpenAI's GPT-4o-mini to automatically extract, structure, and process invoice data with exceptional accuracy and minimal setup.

🔍 Key Features

✅ Advanced Document Processing - Leverages Mistral's state-of-the-art OCR technology specifically optimized for complex document formats

✅ AI-Powered Data Structuring - Uses OpenAI's GPT-4o-mini to intelligently identify and organize invoice elements

✅ Multi-Page Support - Seamlessly processes invoices of any length with precise page handling

✅ Fully Automated Workflow - From detection to structured data in seconds, with zero manual intervention

✅ Custom JSON Schema - Extracts comprehensive invoice data including vendor details, line items, and financial summaries

📋 Extracted Data Includes

• Vendor & customer information

• Invoice numbers, dates, and payment terms

• Line items with descriptions, quantities, and prices

• Financial totals and transaction breakdowns

• User accounts and query details

🔧 Implementation Details

This workflow demonstrates how to:

1. Monitor Google Drive for new invoice uploads

2. Convert documents to Base64 for API processing

3. Make authenticated calls to Mistral's specialized OCR API

4. Process and combine multi-page document text

5. Use AI agents with customized system prompts for data extraction

6. Parse unstructured text into standardized JSON schemas

🚀 Getting Started

1. Sign up for a Mistral AI account: https://console.mistral.ai/

2. Configure your OpenAI API key for GPT-4o-mini access

3. Set up your Google Drive credentials

4. Import this workflow and run!

💡 Real-World Use Cases

• Finance Teams: Automate invoice processing and approval workflows

• Accounting Departments: Extract data for bookkeeping systems

• Expense Management: Process vendor invoices with minimal manual effort

• Document Management: Convert physical or PDF invoices into structured data

• Business Intelligence: Analyze spending patterns across vendors and categories

Take your document processing to the next level by combining specialized OCR technology with advanced AI language models!

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