Block VIII · AI on your own machine · Lesson 46
Uncensored models: what they are and what risks they carry
We explain how a model's refusals are removed (abliteration and fine-tuning), what capability is lost along the way, which variants exist for chat, code, image and video, and what legal responsibility you take on by using them.
- 10 min
- 9 animated slides
- 4-question quiz
- Narrated in 6 languages
What you'll see in this lesson
- What an «uncensored» model is
An open model whose refusals have been removed or toned down: it answers almost anything, but it doesn't know more or become more reliable.
- Abliteration: erasing the refusal «direction»
In 2024 it was found that refusals depend mostly on a single internal direction in the model; remove it and it stops refusing.
- Heretic: automatic abliteration
An open tool (AGPL-3.0) that finds on its own the setting that removes the most refusals while changing the original model the least.
- The other way: retraining with different examples
Families like Dolphin or Hermes tune the model with chosen conversations so it obeys the system prompt instead of refusing.
- What gets lost along the way
Removing refusals is almost never free: what suffers most is step-by-step reasoning, like math.
- Image and video: the filter is in the app
Web services filter on their servers; an open image or video model on your computer doesn't come with that filter.
- Legitimate uses and how to use them wisely
They make sense when the regular model blocks you in legitimate work, not for getting around the law.
- What the law says: you are responsible
The law doesn't care whether the model has a filter, but what you do with it: people's images, data, others' works and illegal content.
- Summary
An uncensored model is a more powerful, less protected tool: use it for legitimate work, on your own machine and wisely.
Tools and concepts
- Heretic
- Dolphin
- Hermes 4
- Abliterated
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