Dictionary

abliterate en · VERB

Etymology

Etymology tree Proto-Indo-European *h₂ep Proto-Indo-European *-o Proto-Indo-European *h₂epó Proto-Italic *ap Latin abder. Latin ab- Proto-Indo-European *telh₂- Proto-Indo-European *-tós Proto-Indo-European *tl̥h₂tós Latin latus Latin ablātusder. Middle English ablatder. Late Latin ablātiōder. Middle English albacioun English ablationbf. English ablate English obliterate blend English abliterate Blend of ablate + obliterate. Coined by Redditor /u/FailSpai in early 2024, as the idea is to ablate refusal features to the point of obliteration.

Meanings

1. (neologism, qualifier:artificial intelligence) To uncensor a large language model by modifying specific model internals to remove refusal behaviours or unwanted traits, while aiming to preserve the model's other capabilities.
   • We abliterated and hosted it so it does the offensive cyber, red teaming, and agent testing work other models refuse to do. 2026 August 31, @abliteration_ai, X (post):
   • Now that we have our datasets, we can load the model we want to abliterate. […] I evaluated the abliterated and source models from the previous section on the Open LLM Leaderboard and on Nous' benchmark suite. 2024 June 13, Maxime Labonne, “Uncensor any LLM with abliteration”, in Hugging Face Blog, retrieved 29 May 2025:

Forms

Relateds

abliteration · uncensor · ablate · orthogonalization · obliterate

wikipedia: Redditor