RevCheck: An AI-Powered Tool for Comparing Used Car Listings

Developer Alex Georgiev has launched RevCheck, an open-source tool designed to help buyers compare used car listings in Bulgaria. By pasting two URLs from local marketplaces, users receive a comprehensive side-by-side report generated by a combination of AI models. The system utilizes Gemma 4 for image analysis to identify potential damage or equipment discrepancies, while DeepSeek V4 provides insights into engine-specific maintenance issues. Additionally, TabPFN is used to calculate a fair market price range based on current listings. The architecture relies on a serverless approach using DigitalOcean Functions and Cloudflare Workers to bypass common scraping restrictions. By automating the evaluation of photos, market positioning, and mechanical weak spots, RevCheck aims to save prospective buyers time and money. The project emphasizes the practical application of open-weight models to solve real-world consumer problems, providing a transparent, cost-effective alternative to manual vehicle inspections.