Nodes/ComfyUI-Kling-Direct/Kling Image Omni
ComfyUI Node

Kling Image Omni

Generate With a Reference Image, by Mentioning It in the Prompt

By IxMxAMAR·Created 5 months ago·Updated 2 months ago· 4
Kling Image Omni
  • auth
  • image_1
  • image
  • url
  • task_id
prompt
aspect_ratio1:1
resolution1k

Kling Image Omni is the pack's image-conditioned generation node: you hand it a reference image plus a prompt, and you get a new image that incorporates both - subject reimagined, style transferred, composition edited - all driven by how you reference the image inside the prompt. It's Kling's omni-image model (the kling-image-o1 engine) exposed in one node, and it's the closest thing in this pack to the "put my character in this scene" pattern people actually want from reference-based generation.

The mechanism is what makes it interesting: the reference isn't a separate strength slider, it's referenced by name. You write your prompt using @image1 to point at your input image - "the woman from @image1, now standing in a neon-lit Tokyo alley at night." The model reads the prompt, pulls the reference, and generates accordingly. It's a different mental model than ControlNet-style reference handling, and once you've got it, it's actually quite flexible.

How it works

Inputs:

  • auth - the KLING_AUTH object.
  • prompt - multiline. Use @image1 to reference the input image. This is the key skill; the tooltip spells it out: "Use @image1 to reference input."
  • image_1 - the reference image (an IMAGE tensor). One reference slot in this version; the pack's video-side Omni node uses the same @image1, @video1 referencing syntax for its multi-input version.
  • aspect_ratio - one of the seven Kling ratios, default 1:1.
  • resolution - 1k or 2k.

Outputs: image (IMAGE), url, and task_id - the standard image trio.

How to actually prompt it

  • Always reference the image. If your prompt doesn't mention @image1, you're basically doing plain text-to-image with an unused input sitting there. The reference is invoked by naming it.
  • Describe the transformation, not the whole scene. "The character from @image1 in a cyberpunk market, rain-slicked streets, cinematic lighting" tells the model what changes (setting, mood) while the reference anchors what stays (the character).
  • Keep the reference clean. A focused subject on a simple background transfers far better than a cluttered group shot. Garbage in, garbage out - the reference constrains identity, and a messy one constrains it messily.
  • It's one reference, not a collage. For multi-image consistency, Kling's Multi-Shot node is the better tool; Image Omni is about transforming a single input.

Where it fits

This is your identity-preservation-ish node in the pack's image line: keep a character's look while changing everything around them. It pairs naturally with Image Gen (generate the character, then Omni it into scenes) and feeds Image-to-Video for the animated follow-through. If you're building "consistent character, many settings" work, this is the node you'll reach for before the more specialist ones.

Common issues

  • "Image ignored / result looks like plain T2I" - you forgot @image1 in the prompt. It's the single most common miss, and the fix is one token.
  • Weak resemblance - the reference is a cluttered or heavily filtered photo. Clean it up, or accept that strong style-transfer prompts will push the identity further away.
  • One-reference limit surprises you - that's this node; the multi-reference omni workflows (with @image1, @image2, @video1) live on the video side of the pack.

Install

Part of ComfyUI-Kling-Direct:

cd ComfyUI/custom_nodes
git clone https://github.com/IxMxAMAR/ComfyUI-Kling-Direct

or ComfyUI Manager → search "Kling Direct" → install → restart. No models, no GPU, no extra dependencies. The learning curve is one sentence long - remember the @image1 - and then it's a very capable reference node.

CategoryKling AI/Image

Inputs (5)

NameTypeDefaultDescription
authKLING_AUTH
promptSTRINGText prompt for omni image generation. Use @image1 to reference input.
image_1IMAGE
aspect_ratioCOMBO1:1Output aspect ratio.
resolutionCOMBO1kOutput resolution.

Outputs (3)

NameTypeDescription
imageIMAGE
urlSTRING
task_idSTRING