Alternatives to Raiinmaker

Mercor: Hire vetted domain experts for AI model evaluation and training data

Human-recorded datasets for training computer-use AI agents

Collect high-quality human data from verified participants for AI training, evaluation, and research.

Curated video datasets and evals for training spatial reasoning in multimodal AI.

Real-world egocentric video and robot data for embodied AI training.

Crowdsourced data services for AI training, validation, and labeling at scale.

Verifier-grounded training data for frontier AI models, built on formal proofs, simulators, and oracles.

Custom multimodal data and evals for perceptual AI training.

Real-world multimodal data lab for physical AI — egocentric video, image, audio, and custom captures delivered fast.

Decentralized AI training data marketplace with crypto rewards

Open-source dataset labeling and AI evaluation for every data modality

Open-source multimodal lakehouse for AI data curation, feature engineering, search, and training.

RL data engine for AI teams building frontier models and enterprise agents

Managed training data for AI agents and LLMs — agentic skills, coding, AI safety.

Freelance platform where experts train AI models and earn weekly pay

Private-deployment data annotation platform for multimodal AI training.

Generate 100s to 1000s of training instances from any GitHub repo in ~10 minutes.

Bright Data's web data platform for AI training and agentic access

Industrial data layer for robotics with high-density action labeling, validated by humans.

Expert-curated reasoning data that trains frontier models to think like specialists.

Zero-shot auto labeling platform that turns raw images into labeled datasets in minutes.

Python library for loading, streaming, and preprocessing AI datasets with Apache Arrow

Expert data development for frontier AI models and agents

Self-hosted AI annotation for custom machine-learning and NLP pipelines

Enterprise dataset management platform for AI training teams

AI data curation and interactive visualization for messy unstructured datasets

Collaborative data labeling for images, text, documents, and video

Open-source Python framework for generating grounded synthetic datasets from real tool execution traces.

Free open-source annotation for text, images, audio, video, and AI agents.

Enterprise synthetic data platform for privacy-safe analytics and AI data access