ComfyUI Node
Flux Outpaint (BFL)
A ComfyUI node in BFL with 11 inputs and 1 output.
Flux Outpaint (BFL)
- config
- IMAGE
◄input_image►
◄width1024►
◄height1024►
◄output_formatpng►
◄prompt►
◄center_referencetrue►
◄reference_offset_x0►
◄reference_offset_y0►
◄auto_cropfalse►
◄modehigh►
CategoryBFL
Inputs (11)
| Name | Type | Default | Description |
|---|---|---|---|
| input_image | STRING | Reference image to expand (base64-encoded string). | |
| width | INT | 102464–4096 | Target canvas width in pixels (>=64). |
| height | INT | 102464–4096 | Target canvas height in pixels (>=64). |
| output_format | COMBO | png | png (default) or jpeg. |
| promptopt | STRING | Experimental: optional text guidance for the outpainted region. The model may not strictly follow this prompt; the visual content of the input image is the primary signal. Leave unset for default behavior. | |
| center_referenceopt | BOOLEAN | true | When True (default), the server centers the reference image on the canvas (reference_offset_x/y are omitted from the request). When False, the reference_offset_x/y values below are sent explicitly. |
| reference_offset_xopt | INT | 0-8192–8192 | Left offset (px) of the reference image's top-left corner on the canvas. Negative values allowed. None = center horizontally. |
| reference_offset_yopt | INT | 0-8192–8192 | Top offset (px) of the reference image's top-left corner on the canvas. Negative values allowed. None = center vertically. |
| auto_cropopt | BOOLEAN | false | If true, crop the reference image to the canvas bounds when it extends beyond the edges. Defaults to false (out-of-bounds placements return 422). |
| modeopt | COMBO | high | Quality/speed tradeoff. 'high' (default) gives highest fidelity and best prompt adherence. 'fast' is significantly faster for naturally extending scenes (landscapes, backgrounds, textures, products) and requires base64 images, placed reference >=64px per side, aspect ratio <=8:1, canvas+padding <=4MP. |
| configopt | BFL_CONFIG | Optional Flux Config (BFL) override for x-key, base URL, and region. |
Outputs (1)
| Name | Type | Description |
|---|---|---|
| IMAGE | IMAGE | — |