Run your AI Toolkit-trained FLUX.1 Dev LoRA in ComfyUI with training-matched behavior using a single RCFluxDev custom node.
Who it's for: creators who want this pipeline in ComfyUI without assembling nodes from scratch. Not for: one-click results with zero tuning — you still choose inputs, prompts, and settings.
Open preloaded workflow on RunComfy
Open preloaded workflow on RunComfy (browser)
Why RunComfy first
- Fewer missing-node surprises — run the graph in a managed environment before you mirror it locally.
- Quick GPU tryout — useful if your local VRAM or install time is the bottleneck.
- Matches the published JSON — the zip follows the same runnable workflow you can open on RunComfy.
When downloading for local ComfyUI makes sense — you want full control over models on disk, batch scripting, or offline runs.
How to use (local ComfyUI)
1. Load inputs (images/video/audio) in the marked loader nodes.
2. Set prompts, resolution, and seeds; start with a short test run.
3. Export from the Save / Write nodes shown in the graph.
Expectations — First run may pull large weights; cloud runs may require a free RunComfy account.
Overview
FLUX.1 Dev LoRA Inference is a ComfyUI workflow built for running AI Toolkit-trained FLUX.1 Dev LoRAs with minimal preview drift. Instead of wiring a generic FLUX sampler graph, it uses the RC FLUX.1 Dev custom node to route generation through a model-specific inference pipeline aligned with AI Toolkit preview sampling. This approach stabilizes results with FLUX.1 Dev-correct defaults and repeatable sampling across runs.
Important nodes:
RC FLUX.1 Dev (RCFluxDev)
SaveImage
Notes
FLUX.1 Dev LoRA Inference in ComfyUI | RunComfy Workflow (Training-Matched Results) — see RunComfy page for the latest node requirements.