Magpie - YouTube Summarizer

Magpie summarizes YouTube videos using AI and lets you chat with the transcript. Ask follow-up questions, get specific details, or dive deeper into any topic covered in the video. Choose from 300+ AI models through OpenRouter including GPT-5, Claude, Gemini, and DeepSeek. Create custom prompts to get summaries in whatever style you need. Bring your own OpenRouter API key so you control costs and usage. No accounts required. No tracking or analytics. Video data goes directly to OpenRouter, never to us. The extension is fully open source. Requires an OpenRouter API key. You pay only for what you use.