Scale AI is the leading enterprise data infrastructure platform that provides high-quality training data for AI systems through a combination of human annotation workforces and AI-assisted labeling — serving autonomous driving companies (Toyota, GM), defense organizations (U.S. Department of Defense), and generative AI labs with the labeled datasets, RLHF feedback, and evaluation services needed to train and align frontier AI models at scale.

What Is Scale AI?

• Definition: An enterprise data labeling and AI infrastructure company that combines large human annotation workforces with ML-assisted tooling to produce high-quality training data — covering image annotation (2D/3D bounding boxes, segmentation), text labeling, LLM evaluation, and RLHF preference data collection at enterprise scale.
• Human + AI Hybrid: Scale's platform uses ML models to pre-label data, then routes tasks to specialized human annotators for verification and correction — achieving higher quality than pure human labeling and higher accuracy than pure automation.
• Enterprise Focus: Unlike open-source tools (Label Studio, CVAT), Scale provides managed annotation services with SLAs, quality guarantees, and compliance certifications (SOC 2, HIPAA) — customers send data and receive labels without managing annotator workforces.
• RLHF at Scale: Scale employs thousands of domain experts (PhDs, engineers, writers) to evaluate and rank LLM outputs — providing the human preference data that companies like OpenAI, Meta, and Anthropic use to align their models.

Scale AI Products

• Scale Data Engine: End-to-end data labeling pipeline — image annotation (2D/3D boxes, polygons, semantic segmentation), video tracking, LiDAR point cloud labeling, and text annotation with quality management and active learning.
• Scale Nucleus: Visual dataset management and debugging tool — explore datasets visually, find labeling errors, identify data gaps, and curate training sets based on model performance analysis.
• Scale Donovan: AI-powered decision intelligence platform for defense and government — combining LLM capabilities with classified data access for military planning and intelligence analysis.
• Scale GenAI Platform: LLM evaluation and fine-tuning data services — human evaluation of model outputs, red-teaming, RLHF data collection, and benchmark creation for generative AI.

Scale AI vs. Alternatives

Scale AI is the enterprise standard for high-quality AI training data — combining managed human annotation workforces with AI-assisted tooling to deliver labeled datasets, RLHF preference data, and model evaluation services at the quality and scale required by autonomous driving, defense, and frontier AI applications.