// the find
comfyanonymous/ComfyUI_bitsandbytes_NF4
A ComfyUI custom node that loads NF4-quantized Flux model checkpoints using bitsandbytes, ported from Forge. It's a one-trick pony: replace the standard checkpoint loader with this one to run Flux on less VRAM. The README itself says it's probably deprecated in favor of GGUF.
Single-file implementation means there's almost nothing to break. Solves a real problem — Flux at full precision is too large for most consumer GPUs. Available through ComfyUI Manager, so installation is handled without manual dependency wrangling.
Self-described as deprecated; the maintainer is actively steering people away from it. The entire codebase is one init file copied from Forge — there's no original engineering here and no indication it will track upstream changes. No tests, no versioning, no error handling beyond what ComfyUI itself provides. Last commit was August 2024, which means any Flux API changes or bitsandbytes breaking changes since then are unaddressed.