Intelligent Invoice Extraction and Validation Platform

Challenge

Our client, a cost optimization consulting firm serving over 200 clients across multiple industries, faced a major bottleneck: manual invoice processing was slow, error-prone, and resource-intensive.

The client needed a scalable solution that would drastically speed up invoice processing while improving accuracy in identifying billing errors and unnecessary expenses to enhance overall cost control.

Solution

We developed and deployed an AI-powered invoice processing system designed to handle high volumes of diverse invoices efficiently and accurately. The system uses an “ensemble” approach, combining the power of multiple large language models to provide the highest invoice processing accuracy.

Invoices in various formats—PDFs, scanned images, and digital files—are uploaded into the platform. We use an OCR model to convert them into machine-readable text with high accuracy.

Next, we use LLMs to analyze document structure, identify key fields such as invoice number, dates, line items, taxes, and total amounts, and export them for further processing.

We use advanced matching algorithms to compare the outputs of each model and select the final results using a majority-vote principle.

The system next cross-references the data against predefined corporate compliance rules and client-specific business logic.

The system intelligently distinguishes between different invoice layouts and adapts dynamically, supporting multiple languages and currencies to accommodate a global client base. It flags anomalies, potential duplicates, missing information, or values that fall outside expected thresholds, generating detailed reports with actionable insights.

Results

• Invoice processing time reduced from minutes to 15 seconds per 1 invoice.
• The system provides 97% invoice processing accuracy.
• Accuracy improvements led to a 23% increase in detected cost discrepancies compared to manual reviews.
• The system scales easily and supports multi-language and multi-format invoices, ensuring wide applicability.