我构建了一个自动更新的 AI 竞技场排行榜档案

Arena AI, formerly known as LMSYS Chatbot Arena, is the gold standard for AI model rankings but lacks a public API and historical data. To address this, a GitHub repository named arena-ai-leaderboards was created to automatically fetch all 10 Arena AI leaderboards daily and convert them into structured JSON format. A GitHub Actions workflow runs daily, auto-discovering all leaderboard categories from arena.ai, fetching full model rankings, parsing them into structured JSON, validating against a schema, and committing to a date-specific directory. The system does not require a hardcoded category list; when Arena AI adds a new leaderboard, it is automatically picked up. The project covers 10 categories and over 300 models.