Zen is an NPX wrapper that seamlessly connects Claude Desktop to a variety of AI models, including Gemini, OpenAI, OpenRouter, and Ollama. It bypasses the need for Docker, offering a lightweight, fast-starting, and cross-platform solution. This integration provides Claude users with powerful features such as extended reasoning, collaborative development with multiple AI perspectives, sophisticated code review, advanced debugging, and the ability to perform large context analysis, making it an invaluable tool for enhancing AI-assisted workflows.