BibiGPT uses GPT-3 and OpenAI-compatible AI models to automatically summarize audio and video content, extracting key information from transcripts and enabling users to chat with the content. It supports a wide range of platforms including YouTube, Bilibili, Twitter, TikTok, podcasts, meetings, and local files. The tool functions as an AI learning companion, helping users efficiently digest educational content through AI-generated summaries and interactive Q&A.