Activation Steering Python Packages

wisent

Monitor and influence AI Brains

brainscope

OpenAI-compatible server with a live view into any HF model's residual stream. pip install brainscope

saklas

Activation steering and trait monitoring for HuggingFace transformers

modelmri

Chrome DevTools for AI models and agents - see attention, features, and agent steps inside any local model. Local-first.

bitnarrow

Zero-training, in-place weight surgery and directional abliteration engine for 4-bit quantized LLMs using Winsorized activation profiling and Gram-Schmidt orthogonal projection

pysteer-adaptation

Python library for activation steering, representation engineering, and inference-time control of transformer language models.

hidden-directions

Steering vectors with receipts: make one, catch one, deploy a calibrated one. pip install hidden-directions

modelmri-record

Chrome DevTools for AI models and agents - see attention, features, and agent steps inside any local model. Local-first.

reprobe

Phase-aware LLM activation steering and linear probing. A memory-efficient, practical implementation of Representation Engineering (RepE) for safety research.