Lightly

Lightly is a high-performance data curation and active learning platform designed to bridge the gap between massive raw datasets and high-quality training data for computer vision models. Built for the 'Data-Centric AI' era, Lightly leverages self-supervised learning (SSL) to generate vector embeddings of visual data without requiring labels. This technical architecture allows ML engineers to identify redundancies, find edge cases, and select the most informative samples for labeling, effectively reducing annotation costs by up to 90%. By 2026, Lightly has positioned itself as the industry standard for industrial-scale vision pipelines, offering seamless integration with cloud storage providers and annotation platforms like Labelbox and Scale AI. Its core engine supports diversity sampling through coreset algorithms and model-in-the-loop active learning, ensuring that every labeled image provides maximum marginal utility to the model. The platform is optimized for petabyte-scale datasets, providing a web-based visualization suite alongside a robust Python SDK for automated workflow integration.