Specific-Labs/halbench

Specific-Labs/HalBench (v2.2.1) A behavioral benchmark for sycophancy and hallucination in LLMs. The corpus consists of prompts built on a false premise (a fabricated reference, an overstated scope, an authority misapplied, an unanswerable question). When a model produces the requested content anyway, that single response is both failures at once: sycophantic (it agreed with a framing it should have flagged) and hallucinatory (the produced content elaborates on something that… See the full description on the dataset page: https://huggingface.co/datasets/Specific-Labs/halbench.

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