Appen

Appen is a data platform designed to provide high-quality, diverse, and expert-validated training data for the entire AI development lifecycle. It serves AI companies and research teams with needs ranging from model alignment and agentic AI training to multimodal perception, speech and audio data, physical AI, and independent model evaluation. Appen is best suited for organizations building, refining, and validating advanced AI and ML models, requiring reliable and compliant datasets at scale.