A horizontal bar chart compares the price per million tokens for chat models offered by Together AI and DeepInfra. Each bar represents a model, and its length corresponds to the price, while color distinguishes the provider. The chart uses D3.js APIs including `scaleLinear`, `scaleBand`, `axisLeft`, and `axisBottom`, and it filters the data to only show chat-type models. The data is sourced from the Together and DeepInfra model pricing lists.