24,540 graded Gemma-4-12B responses with internal workspace features, from a
pre-registered cross-domain hallucination detection campaign. Companion to the
jspace repo and the
jspace-lenses model repo
(fitted Jacobian lenses plus the frozen error classifiers trained on this data).
Each row is one prompt, Gemma's greedy answer, an error label, and 31
deployable features read from the model's residual stream during generation
via… See the full description on the dataset page:
https://huggingface.co/datasets/solarkyle/jspace-hallucination-campaign.
