Startups Directory

Scale AI is an AI infrastructure company providing data annotation, RLHF services, and LLM evaluation through a global workforce of 240K labelers. The company offers an API-first platform for collecting, curating, and annotating unstructured data—images, videos, documents, audio, LiDAR, and 3D point clouds—optimized for model training. Scale serves self-driving, robotics, and AI teams at major enterprises like Google, OpenAI, and Meta. The company's core differentiator is cost-effective human-in-the-loop labeling at scale, enabling continuous data pipelines and real-time model feedback loops.