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RAIL-HH-10K: The First Large-Scale Multi-Dimensional Safety Dataset

The First Large-Scale Safety Dataset with 99.5% Multi-Dimensional Annotation Coverage

RAIL Research Team
November 3, 2025
12 min read

As organisations accelerate the deployment of generative AI, the ethical performance of these systems is no longer a peripheral concern; it is a key component of product quality and brand trust. Responsible AI Labs' RAIL-HH-10K dataset was released to operationalise this ethical evaluation, offering 10k conversational tasks annotated across eight ethical dimensions—fairness, safety, reliability, transparency, privacy, accountability, inclusivity and user-impact—plus an overall RAIL score.

The dataset card positions RAIL-HH-10K as the first large-scale safety dataset with 99.5% multi-dimensional annotation coverage, a step change from previous datasets that covered only 40–70% of relevant norms. With open access under an MIT licence, it provides an invaluable foundation for reinforcement learning from human feedback (RLHF), direct preference optimisation (DPO) and broader responsible-AI research.

The 8 Dimensions of RAIL Score

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