AI training data AI Tools

Prolific connects researchers with verified participants for data collection, charging a 42.8% corporate fee, with a new HUMAINE AI leaderboard in 2026.

Clickworker sources AI training data and crowdsourced tasks from 10M+ workers in 136 countries, now part of LXT since 2025, with custom…

Appen supplies expert-validated training data for AI models. See its 2026 service lineup, why pricing is custom-quoted, and real alternatives to consider.

Scale AI provides high-quality training data and platforms for AI development and evaluation.

Global marketplace for vetted human AI data experts and managed labeling services.

Data labeling platform for training generative AI models with human feedback and expert data teams.

Ethical data labeling outsourcing for AI models with a focus on quality and impact.

Monkt converts documents into AI-ready Markdown or JSON for AI/LLM integration.

Inflectiv.ai: AI-driven platform for data ownership, validation, and monetization in a decentralized ecosystem.