Token Barometer is a price comparison tool for large language model (LLM) APIs. It tracks list prices for 1,302 models across 3,592 hosted offerings, normalised to USD per 1M tokens. The site provides full price history and a cloud-vs-local cost calculator. Data is refreshed daily from vendor pricing pages, official APIs and aggregators. The site displays frontier and strong tier models, priced by the vendor's own API. Each price entry includes a badge showing where the price was read from. The site also lists latest changes in pricing, such as price increases, cuts, and mixed changes. It is made by Dejan Strbad and the data is available under CC BY 4.0.