01/02/2026
We trained a model on data that technically shouldn't exist.
Latvia has no official car number plate auction records. The Road Traffic Safety Directorate has called it the "plate fashion market" and declined to track it. Trading is legally gray. We scraped 8,000 social media posts, ran images through VLMs, used comment sections to spot overpriced listings, and distilled it down to ~50 confirmed sales and 1,500 listings. Prices adjusted for CPI, listings discounted to offset ask-vs-sale bias.
A weighted ensemble with conformal prediction outputs price ranges at 70% coverage. Point estimates would be dishonest.
Methodology: https://baltrix.ai/blog/latvian-license-plate-price-prediction
Demo: https://baltrix.ai/solutions/latvian-plates
