This demo presents InstructLab, a groundbreaking platform designed to bring collaborative power to AI model training. By allowing community members to contribute unique skills and domain knowledge, InstructLab enables continual model refinement without the need for extensive technical expertise or costly retraining processes. Participants in this demo will gain hands-on experience with InstructLab’s intuitive interface, learning how to make impactful contributions to large language models (LLMs) in real-time. Through step-by-step interactions, attendees will see how InstructLab’s tools for taxonomy-driven data curation and large-scale synthetic data generation support collective knowledge-sharing and iterative tuning. This session invites users from all backgrounds to explore the democratization of AI, offering a unique opportunity to directly influence the capabilities of advanced AI systems.