Glossary term
Distillation
Also: model distillation, knowledge distillation
Distillation is the practice of using a stronger model's outputs to train or extract a weaker model, and it is one of the risk domains covered by Fable 5's safety classifiers.
Why it's a flagged domain
Because distillation can copy capability out of a high-end model, it is treated as a sensitive activity for Covered Models. Fable 5 includes a classifier aimed at detecting requests that look like attempts to extract or replicate the model's behavior.
Relation to the reroute
A request flagged under the distillation classifier is subject to Fable 5's classifier fallback — rerouted to Claude Opus 4.8 with the user informed.
Sources & further reading
- Anthropic — Fable & Mythos access noticeOfficialanthropic.com
Facts on this page link to their source. Quotes are kept under 15 words and attributed; figures labelled unofficial are third-party until Anthropic publishes system-card numbers.