ModelSamplingContinuousV_motorway_edition

ModelSamplingContinuousV_motorway_edition is the Motorway-pack version of ComfyUI's ModelSamplingContinuousV: it applies a continuous v-prediction sigma schedule to a model, reading the model from the MOTORWAY 🚌💨 bus by key instead of over a wire.

The native node is the narrow sibling of ModelSamplingContinuousEDM. Where that node offers a menu of schedule families, this one is strictly v_prediction - the sampling dropdown has exactly that one choice. Its job: rebuild the model's sigmas as a continuous v-prediction curve bounded by sigma_max (default 500) and sigma_min (default 0.03), which is the schedule a handful of v-prediction models expect. It's a niche tool - you know you need it when a model's card or workflow says "use ModelSamplingContinuousV," and you'd be wrong to add it speculatively to a normal SDXL graph.

What the motorway edition changes

Like the rest of this family, it's a generated clone from clone_nodes_in_the_dangerzone/nodes.py. Interface: MOTORWAY 🚌💨 in (required), the native widgets, and two key strings:

• INPUT_model_key (default model) - bus key holding the model to re-schedule.
• OUTPUT_MODEL_key (default MODEL) - bus key the re-scheduled model is written to.

It pulls the model off the bus, applies the schedule, writes it back under MODEL, and outputs only the cloned bus. To feed the sampler, pull MODEL out later with a Motorway 0x1. Same behavior as the native node, just bus-native.

Installing

cd ComfyUI/custom_nodes
git clone https://github.com/agilly1989/ComfyUI_agilly1989_motorway

or ComfyUI Manager → "ComfyUI_agilly1989_motorway", then restart. No pip deps, no model downloads.

The fragility you should know about

Fair warning on this whole _motorway_edition family: it's the pack's jankiest corner. The clone generator runs at import time across every registered node, and that's how it's taken down ComfyUI startup in the wild - a 2025 report shows an unrelated RandomModelClipVae class missing a CATEGORY attribute killing the whole Motorway import. The folder is literally named clone_nodes_in_the_dangerzone.

And the 1.1.7 hotfix turned the clone loader off entirely, so in current versions this node may not be registered at all - if it's not in your menu, that's expected. If you aren't all-in on the Motorway bus, use the native ModelSamplingContinuousV instead; you lose nothing.