PartyKit AI, a selection of LLMs and a vector database integrated into the PartyKit environment, is designed to make using AI models as simple as possible. It offers various AI models such as text generation, text-to-image transformation, speech-to-text conversion, and text and image classification. The integration of AI with real-time collaboration in PartyKit allows for advanced capabilities like semantic search and Retrieval-Augmented Generation (RAG). Users can connect to third-party vector databases or use alternative Large Language Models (LLMs) beyond Llama2 and Mistral. The combination of long-lived multiplayer rooms and AI models opens up a world of possibilities for building AI agents and collaborative experiences between humans and AI.