dougalldeepmind/2026-07-29-msm-philosophy-spec-fabrication-probes

Fabrication probes: does model-spec midtraining change fabrication of sourced-looking evidence? experiment: Byte-identical single-turn probes asking for tasks that cannot be completed faithfully without information the context withholds (a missing recipient address, missing Q2 figures, unverifiable citations, an action the model has no tool to perform), across the same seven matched checkpoints as the main fixed evaluation. Built to attribute a confabulation pattern found… See the full description on the dataset page: https://huggingface.co/datasets/dougalldeepmind/2026-07-29-msm-philosophy-spec-fabrication-probes.