This scatter plot compares usage and cost of AI models listed on OpenRouter as of July 2025, with tokens on the x-axis and price per million tokens on the y-axis. Data is loaded from a CSV and visualized using D3 v7 with `d3.forceSimulation` to position labels, preventing overlap, and `d3.axisBottom`/`axisLeft` for axes. The chart highlights that Claude Sonnet 4 and Gemini 2.5 Pro lead in usage, DeepSeek V3 0324 offers low cost with substantial use, while Claude Opus appears too expensive for widespread adoption.