ComfyUI-LLPS-v1

LLPS = LiveLatentPreviewer & Saver.

This v1 provides two nodes:

LLPS Config: choose live preview method, show/save toggles, save path, filename, image format, interval.
LLPS KSampler: KSampler-compatible node that uses LLPS_CONFIG instead of ComfyUI's global live preview setting.

v1 design boundary

This version does not globally override every KSampler in the workflow. Only LLPS KSampler follows LLPS settings. Other samplers keep using ComfyUI's own settings.

That is intentional: it avoids global monkeypatch/race-condition issues and makes the graph explicit.

Install

Copy this folder into:

ComfyUI/custom_nodes/ComfyUI-LLPS-v1/

Restart ComfyUI.

Basic use

Add LLPS Config.
Add LLPS KSampler.
Connect LLPS Config.llps_config to LLPS KSampler.llps_config.
Use LLPS KSampler in place of the normal KSampler.

Settings

live_preview_method: server_default, none, auto, latent2rgb, taesd
show_preview: send live preview frames to ComfyUI UI
save_preview: save the same preview frames to disk
save_base_path: empty = ComfyUI/output/LLPS
subfolder: optional explicit subfolder
filename_prefix: prefix for step files
image_format: jpg, png, webp
save_every_n_steps: save interval; 1 saves every step
save_metadata_json: writes metadata.json next to saved frames

Important

none means no preview frame is decoded, so it cannot save frames. For “save only,” use:

live_preview_method = latent2rgb or taesd
show_preview = false
save_preview = true