About

Scale AI is a data infrastructure company that provides high-quality training data, evaluation tools, and AI platform capabilities for organizations building and deploying artificial intelligence systems. Founded in 2016 by Alexandr Wang and Lucy Guo, the company is headquartered in San Francisco, California, and has grown into one of the most prominent AI data companies with a valuation exceeding $13 billion. Scale AI began as a data labeling service, providing human-annotated training data for machine learning models, and has expanded into a comprehensive AI platform serving both commercial enterprises and government customers. The company's core data labeling services cover a wide range of AI use cases including computer vision annotation for autonomous vehicles and robotics, natural language processing data for text classification and entity recognition, audio transcription and annotation, and reinforcement learning from human feedback (RLHF) data for training large language models. Scale has played a significant role in the development of many major AI systems, providing training data to leading AI companies. The Scale Generative AI Platform provides tools for enterprises to develop, evaluate, and deploy LLM-powered applications. This includes Scale Data Engine for curating and managing fine-tuning datasets, Scale GenAI Platform for building and testing AI applications, and Scale Evaluation for benchmarking model performance. The SEAL Leaderboard, maintained by Scale AI, provides independent benchmarks for comparing large language model capabilities. Scale also serves the U.S. Department of Defense and intelligence community through its Scale Donovan platform, which provides AI capabilities for government applications. Scale AI pricing is typically custom and contract-based, tailored to the specific data volume, annotation complexity, and platform requirements of each customer. The company employs a global network of human annotators alongside AI-assisted labeling tools to deliver training data at scale.

AI Data Analysis

Scale AI provides data analysis capabilities through its Generative AI Platform and evaluation tools. The platform enables organizations to analyze model performance, assess data quality, benchmark AI systems through the SEAL Leaderboard, and derive insights from complex datasets used in machine learning development and deployment.

AI MLOps Tools

Scale AI supports ML operations through its data engine for managing training data pipelines, model evaluation tools for benchmarking performance, and platform capabilities for testing and deploying AI applications. These tools address the data-centric aspects of MLOps, ensuring model quality through high-quality training data and rigorous evaluation.

AI Model Hosting

Scale AI's Generative AI Platform enables enterprises to build, test, and deploy LLM-powered applications with tools for prompt engineering, model evaluation, fine-tuning data management, and application development. The platform supports the full lifecycle from model selection and customization through production deployment and monitoring.

AI Research Tools

Scale AI contributes to AI research through its SEAL Leaderboard for independent model benchmarking, evaluation frameworks for assessing LLM capabilities, and training data infrastructure used by leading AI research labs. The company's annotation services have supported the development of many significant AI models and research breakthroughs.

AI Training Platforms

Scale AI is one of the largest providers of training data for AI systems, offering human annotation services for computer vision, NLP, audio, and RLHF data used to train foundation models and specialized AI systems. The company provides data labeling at scale with quality assurance, enabling organizations to build high-performing models with accurately labeled training datasets.

Tool Details Paid

Pricing Custom pricing (contract-based)
Platform SaaS,API
Headquarters San Francisco, California
Founded 2016
API Available Yes
Enterprise Plan Yes
4.6 2 reviews

AI Reviews

🤖
4.5 /5
Scale AI is an enterprise-grade data labeling and AI infrastructure platform trusted by major organizations including the U.S. Department of Defense and leading tech companies. Its core strength lies in high-quality data annotation at scale, combining human labelers with AI-assisted workflows to produce training datasets across text, image, video, and 3D modalities. The platform excels at RLHF (reinforcement learning from human feedback) pipelines, making it a go-to for teams fine-tuning large language models. Its API is well-documented and enables seamless integration into existing ML workflows. On the research side, Scale provides evaluation frameworks and benchmarks that are increasingly industry-standard. The main limitations are its enterprise-focused custom pricing, which puts it out of reach for individual developers and startups, and its model hosting capabilities are less mature compared to dedicated platforms like Replicate or AWS SageMaker. Data security and compliance features are robust, appealing to regulated industries. Overall, Scale AI is a premium choice for organizations serious about data quality and AI development infrastructure.

Category Ratings

AI Data Analysis
4.7
AI MLOps Tools
4.5
AI Model Hosting
3.8
AI Research Tools
4.6
AI Training Platforms
4.8
Feb 15, 2026
AI-Generated Review Generated via Anthropic API. This is an automated evaluation, not a consumer review. Learn more
🤖
4.6 /5
Scale AI has established itself as an enterprise-grade data labeling and AI infrastructure powerhouse, trusted by major tech companies and government agencies alike. The platform excels at providing high-quality training data through its hybrid human-AI annotation pipeline, which delivers exceptional accuracy for computer vision, NLP, and generative AI projects. Their Nucleus platform offers robust data management and model evaluation capabilities, while Scale Generative AI Platform supports fine-tuning and RLHF workflows. The API is well-documented and integrates smoothly into existing ML pipelines. However, Scale's contract-based pricing puts it out of reach for startups and individual developers"this is clearly an enterprise-focused solution. The platform's strength lies in handling massive-scale data operations with rigorous quality control, though smaller teams may find alternatives like Labelbox or Roboflow more accessible. For organizations with substantial AI budgets requiring production-grade data infrastructure, Scale AI remains a top-tier choice.

Category Ratings

AI Data Analysis
4.7
AI MLOps Tools
4.5
AI Model Hosting
4.2
AI Research Tools
4.6
AI Training Platforms
4.8
Feb 12, 2026
AI-Generated Review Generated via Anthropic API. This is an automated evaluation, not a consumer review. Learn more