---
license: other
tags:
  - lora
  - z-image-turbo
  - zimage
  - diffusers
  - text-to-image
  - character
  - male
  - photorealistic
base_model: Tongyi-MAI/Z-Image-Turbo
instance_prompt: "[luca-voss]"
---

# luca-voss (LoRA)

**Trigger:** `[luca-voss]`  [oai_citation:2‡config.yaml](sediment://file_00000000c168720a8bbd7cdbb17e97aa)

A character LoRA trained to generate a consistent male model identity ("luca-voss") with photorealistic/editorial portrait aesthetics. The model was trained on **Tongyi-MAI/Z-Image-Turbo** with a LoRA network configuration optimized for identity consistency and realistic skin detail.  [oai_citation:3‡config.yaml](sediment://file_00000000c168720a8bbd7cdbb17e97aa)

---

## Base model

- **Tongyi-MAI/Z-Image-Turbo**  [oai_citation:4‡config.yaml](sediment://file_00000000c168720a8bbd7cdbb17e97aa)

---

## Training details

- **Type:** LoRA (Diffusers format)
- **Steps:** 3000
- **Batch size:** 1
- **LR:** 1e-4
- **Noise scheduler:** flowmatch
- **Optimizer:** adamw8bit
- **Train UNet:** true
- **Train text encoder:** false
- **Precision:** bf16
- **Quantization:** qfloat8 (model + text encoder)
- **Resolutions used:** 512 / 768 / 1024  [oai_citation:5‡config.yaml](sediment://file_00000000c168720a8bbd7cdbb17e97aa)  [oai_citation:6‡log.txt](sediment://file_00000000851072438eb60fc67da18969)

**LoRA network settings**
- linear rank/alpha: 32 / 32
- conv rank/alpha: 16 / 16
- lokr_full_rank: true  [oai_citation:7‡config.yaml](sediment://file_00000000c168720a8bbd7cdbb17e97aa)

---

## How to use

### Prompting
Use the trigger token at the start of your prompt:

**Example (portrait/editorial):**
`[luca-voss], 20-23-year-old man, dark brown strictly slicked-back hair, hazel-brown eyes, realistic skin texture, modern editorial portrait, photorealistic`

### Style / scenario examples
(These were used as sample prompts during training)  [oai_citation:8‡config.yaml](sediment://file_00000000c168720a8bbd7cdbb17e97aa)

- Haute couture runway
- White tie (tailcoat / frack)
- Baywatch lifeguard vibe
- 1950s greaser / James Dean inspired
- Cyber-noir / Blade Runner inspired
- Cowboy / western vibe

> Tip: For maximum identity stability, keep `[luca-voss]` at the beginning and add scene/outfit variations after.

---

## Recommended generation notes

- If you see overly glossy or wet-looking skin artifacts, reduce your detailer/upscale denoise and reinforce matte/anti-shine descriptors in negative prompts.
- For stronger identity, prefer close-up / head-and-shoulders shots and consistent lighting across a series.

---

## Limitations

- As with most character LoRAs, extreme stylization or very low-resolution generations can reduce identity consistency.
- Performance may vary across samplers and upscalers.

---

## Training config (summary)

This LoRA was trained via a diffusion trainer job with the following key parameters (see config/log for full details).  [oai_citation:9‡config.yaml](sediment://file_00000000c168720a8bbd7cdbb17e97aa)  [oai_citation:10‡log.txt](sediment://file_00000000851072438eb60fc67da18969)