Sapien.io is a decentralized Web3 data foundry and AI training platform that enables users worldwide to contribute expertise to AI models through incentivized microtasks. Contributors earn reputation and token rewards by completing missions like labeling data, verifying outputs, and responding to prompts—staking native $SAPIEN tokens to ensure quality. Designed as a gamified, reputation-based system, participants progress via scoring, peer review, and staking, with slashing mechanisms for low-quality contributions. Mission assignments are tailored based on contributor skills, languages, and expertise levels. Onboarding contributors span 70+ countries, including doctors, engineers, and students, while serving enterprise customers in areas like autonomous vehicles, medical research, and education.