Zurich-based Rapidata raised €7.2M to build a global human feedback network that speeds up AI model training with real-time human judgment.

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Zurich-based startup Rapidata has raised a €7.2M seed round to scale a global, real-time human feedback network for AI model training. The platform aims to compress RLHF feedback loops from weeks or months down to hours or days by providing on-demand access to a worldwide network of human annotators. Founded in 2023, Rapidata positions human judgment as core AI infrastructure, arguing that high-quality human signal—not compute—will be the next major scarcity in AI development.

Zurich’s Rapidata raises €7.2M to build a real-time human feedback network for AI