Exactly Extreme Contrast

Extreme Contrast is the Exactly photo node with its foot on the drama pedal. The name is the specification: hard blacks, bright whites, and not much in between. It's the variant you reach for when the brief is editorial, noir, or just plain graphic - when a soft gradient read would be a miss. Like every Exactly photo node, it takes no prompt at all; the whole input is reference images and a canvas size, and the model's baked-in look does the rest.

That no-prompt contract is the family's superpower and its limitation in one. You can't type "make it moodier" - you have to show it moody. For Extreme Contrast that means curating references that already have the punch you want, because the model's job is to carry that identity into new compositions, not to invent a tone you described. Feed it high-contrast refs and it stays on the rails.

What you set

• referenceImages (required) - from the Runware Reference Images builder: each ref gets a type, a tag (e.g. @subject), and the image. For this variant, quality of the refs matters more than quantity - strong blacks in, strong blacks out.
• width / height - output canvas, default 1024×1024.
• numberResults - up to 20 seeded variations.
• watermark - optional builder socket.
• outputFormat - JPG / PNG / WEBP, outputQuality 20–99.

Output is image (IMAGE).

How it works

Same machinery as the rest of the pack: taskType: imageInference request with the Exactly Extreme Contrast model AIR, REST through the Runware SDK, references encoded into the payload, native IMAGE back. The contrast character is baked into the hosted model, not into your workflow - which is the appeal. You get a consistent hard-edged look without building a contrast pipeline out of four nodes in every project.

Installing

ComfyUI Manager → search Runware → install → restart. Manual:

cd ComfyUI/custom_nodes
git clone https://github.com/Runware/ComfyUI-Runware
pip install -r ComfyUI-Runware/requirements.txt

No model downloads; deps are runware-sdk, pillow, soundfile. API key via Settings → Runware API key, RUNWARE_API_KEY, or runware auth login.

Troubleshooting

If the output isn't as punchy as the name promises, look at your references first - a soft source set will pull the model toward softness regardless of its baked-in bias. Crushed blacks eating detail? Back off to refs with a touch more midtone and let the model do less work. And if you need the same identity pipeline but with bright, airy highlights, that's Exactly Bright Pulse.