FiftyOne Data Lens is a powerful data exploration and retrieval tool designed to simplify and accelerate data discovery, helping developers quickly explore and retrieve exactly the data they need from billions of available samples. It integrates with various data sources, including data lakes, databases, and cloud storage providers, allowing users to rapidly search massive unstructured data collections, preview media and labels instantly, and import data directly into their dataset for further analysis. The tool provides a flexible framework to customize search parameters and connect to external data sources, enabling users to find, preview, and import relevant samples efficiently. With Data Lens, developers can eliminate manual tasks, speed up model iteration cycles, and improve productivity while building custom datasets from different data sources, fine-tuning their models with the most relevant and informative samples.