Image Upscale: Bria Increase Resolution

Upscale any image to higher resolutions using Bria's dedicated resolution enhancement API, which preserves original content without adding new details or regenerating the image. The workflow accepts a single input image and produces one enhanced, higher-resolution output, supporting JPEG and PNG files in RGB, RGBA, or CMYK color modes up to a maximum area of 8192x8192 pixels. Built-in content moderation scans both the input image and generated output to ensure safe, policy-compliant processing. Ideal for preparing images for print, enlarging photos for digital display, or increasing resolution of assets for professional design work.

Download Workflow Try in Cloud

About

This ComfyUI tutorial workflow shows you how to cleanly upscale a single image using Bria’s dedicated resolution enhancement API. The core BriaIncreaseResolution node takes an input from LoadImage, sends it to the Bria API, and returns a higher-resolution version that preserves the original content without inventing new details or regenerating the scene. It supports JPEG and PNG inputs in RGB, RGBA, or CMYK color modes, and enforces a maximum area of 8192×8192 pixels to keep processing fast and reliable.

Built-in content moderation checks both the input and the enhanced output for policy compliance before finalizing results.

Technically, the graph is straightforward and focused: LoadImage feeds your source into BriaIncreaseResolution, where you specify your target dimensions or scale within the allowed limits. ImageCompare then places the original and the upscaled image side-by-side so you can evaluate edge fidelity, text clarity, and fine textures at a glance.

Finally, SaveImageAdvanced writes the enhanced output with your preferred filename, folder, and format (PNG for lossless graphics and text, JPEG for smaller photo files), making it a practical tool for print prep, large digital displays, and professional design workflows that need reliable resolution increases without stylistic changes.

What you provide

Reading the workflow

Runs in ComfyUI. This workflow can't run on this page. Open it in Comfy Cloud with everything loaded, or download it for your own ComfyUI.

Try in Cloud

Output

Use this workflow from code

Generated from the workflow graph and inputs when possible; stored examples are shown otherwise. Review credentials and endpoints before running code, which may incur charges.

Get API key

What you need

Runs on: Comfy Cloud
Key: COMFY_API_KEY
Your files: Uploaded by the code from their urls

Needs a paid Cloud plan and credits.

Download API JSON

# Python 3.10+: pip install comfy-sdk==0.4.0
import os

from comfy_sdk import Comfy

api_key = os.environ.get("COMFY_API_KEY", "").strip()
if not api_key: raise RuntimeError("Set COMFY_API_KEY")
os.environ.setdefault("COMFY_BASE_URL", "https://cloud.comfy.org")
client = Comfy(api_key=api_key)
workflow = client.workflows.from_json({
    "1": {
        "class_type": "BriaIncreaseResolution",
        "inputs": {
            "auto_downscale": True,
            "desired_increase": "2",
            "image": [
                "2",
                0
            ],
            "moderation": "false"
        },
        "_meta": {
            "title": "Bria Increase Resolution"
        }
    },
    "2": {
        "class_type": "LoadImage",
        "inputs": {
            "image": "UPLOADED_image_FILENAME"
        },
        "_meta": {
            "title": "Load Image"
        }
    },
    "3": {
        "class_type": "SaveImageAdvanced",
        "inputs": {
            "filename_prefix": "Bria_upscaled_image",
            "format": "png",
            "format.bit_depth": "8-bit",
            "format.input_color_space": "sRGB",
            "images": [
                "1",
                0
            ]
        },
        "_meta": {
            "title": "Save Image (Advanced)"
        }
    },
    "4": {
        "class_type": "ImageCompare",
        "inputs": {
            "compare_view": None,
            "image_a": [
                "2",
                0
            ],
            "image_b": [
                "3",
                0
            ]
        },
        "_meta": {
            "title": "Compare Images"
        }
    }
})
# Replace each example.com URL with a public URL of your file.
workflow.set_input("2", "image", client.assets.from_url("https://example.com/replace-with-a-url/image"))

# run() also passes api_key to the partner nodes in this workflow.
job = client.run(workflow, api_key=api_key)

API documentation

Image Upscale: Bria Increase Resolution

About

What you provide

Inside the workflow

Requires custom nodes

Use this workflow from code

What you need

Questions & answers

About

What you provide

Inside the workflow

Requires custom nodes

Use this workflow from code

What you need

Questions & answers

Does this workflow add new details or change the style of my image?

What are the size limits and how should I choose my target resolution?

Which file formats and color modes are supported?

What happens if my image triggers content moderation?