Issues

• ControlVector.train() is non-deterministic: PCA svd_solver="auto" selects an unseeded randomized SVD

  vgel/repeng#78 · Filter by author bamdadd opened on Jul 13, 2026

• pca_diff returns a concept-independent axis when the positive prompt is held constant across pairs

  vgel/repeng#77 · Filter by author bamdadd opened on Jul 13, 2026

• Pypi version very old

  vgel/repeng#76 · Filter by author Mr-Squirrel opened on Feb 24, 2026

• FYI: approach of heretic

  vgel/repeng#75 · Filter by author thiswillbeyourgithub opened on Nov 17, 2025
  1

• FYI this paper: Identifying and Manipulating Personality Traits in LLMs Through Activation Engineering

  vgel/repeng#63 · Filter by author thiswillbeyourgithub opened on Feb 9, 2025

• FYI : you might be interestef in ErisForge

  vgel/repeng#62 · Filter by author thiswillbeyourgithub opened on Feb 2, 2025

• Poor performance on mistral large

  vgel/repeng#53 · Filter by author Hellisotherpeople opened on Nov 24, 2024
  1

• Much faster versions of PCA + UMAP exist. Can we implement them?

  vgel/repeng#52 · Filter by author Hellisotherpeople opened on Nov 24, 2024
  3

• add support for exporting control vectors to huggingface formats

  vgel/repeng#43 · Filter by author raywanb opened on Aug 8, 2024
  1

• The MPS Backend is Not Working Properly

  vgel/repeng#35 · Filter by author AtakanTekparmak opened on May 27, 2024
  14

• Cannot apply to other models

  vgel/repeng#33 · Filter by author Starlento opened on Apr 30, 2024
  6

• Alternatives to PCA, such as umap

  vgel/repeng#27 · Filter by author Hellisotherpeople opened on Mar 27, 2024
  13

• Will there be support for models with custom architecture (not only mistral or gpt based)?

  vgel/repeng#25 · Filter by author Nishant-kirito opened on Mar 19, 2024
  7

• Numpy AttributeError on repeng import

  vgel/repeng#17 · Filter by author eggsyntax opened on Mar 5, 2024
  4

• Base model and vector merging

  vgel/repeng#1 · Filter by author deniaud opened on Jan 23, 2024
  1