Recraft Crisp Upscale - ComfyUI Native Node Documentation

A Recraft API node that enhances image clarity and resolution using AI

The Recraft Crisp Upscale node uses Recraft’s API to improve image resolution and clarity.

Parameters

Basic Parameters

Parameter	Type	Default	Description
image	image	-	Input image to be upscaled

Output

Output	Type	Description
IMAGE	image	Upscaled and enhanced output image

Source Code

[Node source code (Updated on 2025-05-03)]

class RecraftCrispUpscaleNode:
    """
    Upscale image synchronously.
    Enhances a given raster image using ‘crisp upscale’ tool, increasing image resolution, making the image sharper and cleaner.
    """

    RETURN_TYPES = (IO.IMAGE,)
    DESCRIPTION = cleandoc(__doc__ or "")  # Handle potential None value
    FUNCTION = "api_call"
    API_NODE = True
    CATEGORY = "api node/image/Recraft"

    RECRAFT_PATH = "/proxy/recraft/images/crispUpscale"

    @classmethod
    def INPUT_TYPES(s):
        return {
            "required": {
                "image": (IO.IMAGE, ),
            },
            "optional": {
            },
            "hidden": {
                "auth_token": "AUTH_TOKEN_COMFY_ORG",
            },
        }

    def api_call(
        self,
        image: torch.Tensor,
        auth_token=None,
        **kwargs,
    ):
        images = []
        total = image.shape[0]
        pbar = ProgressBar(total)
        for i in range(total):
            sub_bytes = handle_recraft_file_request(
                image=image[i],
                path=self.RECRAFT_PATH,
                auth_token=auth_token,
            )
            images.append(torch.cat([bytesio_to_image_tensor(x) for x in sub_bytes], dim=0))
            pbar.update(1)

        images_tensor = torch.cat(images, dim=0)
        return (images_tensor,)