Observed arrival · 2026-09-25
Ditch: a CPU-first refusal-editing tool for open-weight models
Ditch is a Zig command-line tool for modifying refusal behavior in open-weight language models, designed to run on a CPU with optional Vulkan or Metal acceleration.
- For
- Open-weight model tinkerers on local hardware
- Worth noticing
- The page reports 93 supported model families, with 80 checked against a released checkpoint.
Field notes
The workflow starts from a Hugging Face model ID, local directory, or GGUF file, then measures a baseline, extracts refusal directions, and compares trials using refusal behavior and KL divergence. Searches can be journaled and resumed; exports include safetensors or GGUF plus settings, trial parameters, and content hashes. The homepage lists 93 model families, saying 80 have been checked against a released checkpoint, and describes the project as still in development.
Observed signals
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