https://huggingface.co/kabachuha/gpt-oss-20b-SOMbliterated

gpt-oss-20b - SOMbliterated

This is a SOMbliterated (decensored) version of openai/gpt-oss-20b, made using Heretic v1.2.0 with Pull Request https://github.com/p-e-w/heretic/pull/196 adding multi-directional abliteration with the directions determined by trainable self-organizing neural networks. (Self-Organizing Maps / Kohonen networks)

They assume that in advanced recent neural network the refusal concept is not just a single direction, but a complex manifold, just like numbers and days of week are encoded in circles or helixes. Now, this manifold is eliminated more surgically, from multiple sides, providing precisional ablation instead of complete lobotomy.

The method is based on the amazing work https://arxiv.org/abs/2511.08379v2.

For this abliteration, in particular, there were used five directions.

Performance

As of 2026-02-27 this is the lowest amount of oss-20b heretic refusals I've read on huggingface. See comparison with the other available models on Github