Kathimodel — Z-Image Turbo and Krea 2 LoRAs

Identity LoRAs for Tongyi-MAI/Z-Image-Turbo and Krea 2. The files are base-model-specific and are not interchangeable.

Trigger token

Use kathimodel in the prompt. Put it near the beginning of the subject description.

Krea 2 — ComfyUI version

The new Krea 2 version was trained with a rebuilt 50-image dataset emphasizing detailed full-body and three-quarter-body views, supported by closer identity anchors. Backgrounds were blurred to reduce environment memorization.

Use this file only with a Krea 2 workflow in ComfyUI:

• krea2/kathimodel_krea2_fullbody_step_1200_comfyui.safetensors

Recommended starting settings:

• Trigger: kathimodel
• LoRA strength: 0.8
• Adjust within roughly 0.7–1.0; higher values favor identity, while lower values allow more prompt flexibility.
• Describe the desired framing explicitly, such as full-body fashion photograph, three-quarter portrait, or close portrait.

Training details:

Parameter	Value
Trainer	fal-ai/krea-2-trainer
Base model	fal/krea-2
Training steps	1200
Learning rate	0.0003
Resolution	1024
Training images	50
LoRA rank / alpha	32 / 32
Captioning	50 paired captions; automatic captioning off
Output format	ComfyUI Krea 2 LoRA, .safetensors

The ComfyUI conversion changed only tensor names. Its 528 learned tensors are byte-for-byte identical to the completed fal training artifact.

Krea 2 ComfyUI weight SHA-256:

4490ba243b07e3ce40e85510b17d83196b70c805583ec22577bf62eb3d957743

The Krea 2 training manifest is available at krea2/training_manifest.json.

Z-Image Turbo version

Sample

The sample above was generated from the final uploaded weights, without upscaling or face restoration.

Setting	Value
Generator	fal-ai/z-image/turbo/lora
LoRA scale	0.9
Inference steps	8
Image size	portrait_4_3 (768 × 1024)
Seed	88417321
Prompt expansion	Off

Sample prompt

Photorealistic close-up editorial portrait of kathimodel, an adult woman, head-and-shoulders framing, looking directly into the camera with a calm confident expression, long dark hair, simple black sleeveless top, soft natural window light, neutral warm gray studio background, realistic skin texture, sharp detailed eyes, 85mm portrait photography, shallow depth of field, natural proportions, no text, no watermark

Recommended settings

• Start with a LoRA scale of 0.85–0.95. Raise it toward 1.0 for stronger identity adherence; lower it toward 0.7 for more flexibility.
• Use 8 inference steps with Z-Image Turbo.
• Close-up, head-and-shoulders, and waist-up compositions generally match the training distribution best.
• Mention kathimodel once and describe pose, wardrobe, lighting, and setting. Avoid over-specifying facial geometry, which can compete with the learned identity.
• For closer resemblance, use natural or soft studio lighting, direct or three-quarter gaze, and portrait focal-length language such as 85mm.

fal.ai example

Use the public Hugging Face weight URL as the LoRA path:

{
  "prompt": "Photorealistic close-up portrait of kathimodel, direct gaze, long dark hair, soft natural light, detailed skin, 85mm photography",
  "image_size": "portrait_4_3",
  "num_inference_steps": 8,
  "seed": 88417321,
  "num_images": 1,
  "loras": [
    {
      "path": "https://huggingface.co/hodgy/kathimodel/resolve/main/kathimodel_z_image_turbo_closeup_step_1500.safetensors",
      "scale": 0.9
    }
  ],
  "output_format": "png",
  "enable_prompt_expansion": false
}

Training details

Parameter	Value
Trainer	fal-ai/z-image-turbo-trainer-v2
Base model	Tongyi-MAI/Z-Image-Turbo
Training steps	1500
Learning rate	0.0005
Training images	50
Captioning	One matching text caption per image
Trigger token	kathimodel
Training samples	Disabled
Output format	Diffusers LoRA, .safetensors

The dataset was curated toward closer views of the adult subject. Images were cropped to increase facial and upper-body detail, and backgrounds were blurred to reduce environment memorization.

Files

• krea2/kathimodel_krea2_fullbody_step_1200_comfyui.safetensors — Krea 2 LoRA with ComfyUI-compatible tensor keys
• krea2/training_manifest.json — Krea 2 training and conversion metadata with checksums
• kathimodel_z_image_turbo_closeup_step_1500.safetensors — final 1500-step LoRA weights
• kathimodel_z_image_turbo_closeup_step_1500_config.json — compact training configuration
• sample.png — generated example using the settings above

Weights SHA-256:

a0135cfff0541fb969f3376f361acde52ee43488fcf65960a2da2bc035323275

Limitations

• This is a small identity dataset, so results vary with framing, lighting, pose, and LoRA scale.
• The Z-Image version favors close portraits. The Krea 2 version includes more full-body coverage, but very distant subjects can still lose facial detail.
• Strong stylization, unusual angles, heavy occlusion, or prompts that impose conflicting facial features can reduce resemblance.
• The LoRA may reproduce biases or visual patterns present in the training photographs.
• A generated image is not a real photograph of the subject and should be represented as synthetic.

Responsible use

Use only where you have the necessary rights and permission. Do not use this LoRA to impersonate, deceive, defame, harass, exploit, or violate the privacy or publicity rights of the depicted person. Clearly disclose AI-generated imagery when context could cause viewers to mistake it for a real event or endorsement.

License

No separate license has been declared for this LoRA. The base model is released under Apache-2.0; users are responsible for complying with the base model terms and all applicable rights governing identity-based outputs.