Logit Lens Python Packages

chessformer-lens

A toolkit+visualizer that is designed for mech interp researchers working with chess models that use transformers tokenized by square.

brainscope

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

glassbox-mech-interp

Open-source EU AI Act Annex IV documentation toolkit. Mechanistic interpretability + circuit discovery for transformers. One function call generates a structured, hash-chained evidence package.

glassbox-mcp

Open-source EU AI Act Annex IV documentation toolkit. Mechanistic interpretability + circuit discovery for transformers. One function call generates a structured, hash-chained evidence package.