by drbaph
Open source · 6k downloads · 23 likes
The Z Image fp8 model is a quantized version of the Z-Image model, optimized to run with ComfyUI. It leverages FP8 formats (such as fp8-e4m3fn or fp8-e5m2) to significantly reduce VRAM memory requirements while maintaining high image quality, making it accessible even on consumer-grade GPUs. This model excels at generating detailed and stylized images, particularly for portraits or complex scenes with rich textures and precise poses. Its use cases include artistic creation, fashion, or any project requiring sophisticated visual renders under limited hardware constraints. What sets it apart is its balance between performance and accessibility, enabling smooth operation without compromising fine details.
This is the fp8-e4m3fn-scaled / fp8-e4m3fn and fp8-e5m2-scaled / fp8_e5m2 quantized versions of the Z-Image model, optimized for ComfyUI workflows. These quantized formats significantly reduce VRAM requirements while maintaining high image quality, making the model more accessible for consumer-grade GPUs.
Quantization Formats:
fp8-e4m3fn-scaledfp8-e4m3fnfp8_e5m2-scaledfp8_e5m2
BF16 / fp8-e4m3fn An Asian woman is seated in a commanding, symmetrical pose on a stark, matte white architectural block, viewed from a distinct low angle looking upward, which elongates her silhouette against the background. She is attired in a structured, high-fashion suit constructed from heavy, lustrous silk brocade in a rich emerald green, embossed with a complex, swirling floral texture that catches the studio illumination. The jacket features sharp, exaggerated shoulder pads and wide lapels, tapering slightly at the waist, while the matching trousers are cut with an extremely wide leg, draping in thick, vertical folds that obscure the shape of her lower limbs. Her legs are positioned wide apart, knees angled outward well beyond the width of her shoulders, creating a distinct triangular negative space between her inner thighs. Her hands rest deliberately on the front upper edge of the white cube, located centrally between her legs, with palms flat against the surface and long, slender fingers draping slightly over the rim. Her head is tilted slightly downward to maintain direct eye contact with the low-positioned camera, her expression stoic and poised, featuring subtle contouring makeup and a satin-finish berry lipstick. Her straight black hair is parted precisely in the center and slicked back tightly, falling in a clean line down her back. The lighting is crisp and directional, casting a defined shadow behind her on the seamless, pale grey background while accentuating the weave of the fabric and the sharp, geometric corners of the seating block. seed: 539314584494176 Steps:30 | CFG:4 | Euler
BF16 / fp8-e4m3fn-scaled An Asian woman is seated in a commanding, symmetrical pose on a stark, matte white architectural block, viewed from a distinct low angle looking upward, which elongates her silhouette against the background. She is attired in a structured, high-fashion suit constructed from heavy, lustrous silk brocade in a rich emerald green, embossed with a complex, swirling floral texture that catches the studio illumination. The jacket features sharp, exaggerated shoulder pads and wide lapels, tapering slightly at the waist, while the matching trousers are cut with an extremely wide leg, draping in thick, vertical folds that obscure the shape of her lower limbs. Her legs are positioned wide apart, knees angled outward well beyond the width of her shoulders, creating a distinct triangular negative space between her inner thighs. Her hands rest deliberately on the front upper edge of the white cube, located centrally between her legs, with palms flat against the surface and long, slender fingers draping slightly over the rim. Her head is tilted slightly downward to maintain direct eye contact with the low-positioned camera, her expression stoic and poised, featuring subtle contouring makeup and a satin-finish berry lipstick. Her straight black hair is parted precisely in the center and slicked back tightly, falling in a clean line down her back. The lighting is crisp and directional, casting a defined shadow behind her on the seamless, pale grey background while accentuating the weave of the fabric and the sharp, geometric corners of the seating block. seed: 539314584494176 Steps:30 | CFG:4 | Euler
Benefits:



Z-Image is the foundation model of the ⚡️- Image family, engineered for good quality, robust generative diversity, broad stylistic coverage, and precise prompt adherence.
While Z-Image-Turbo is built for speed, Z-Image is a full-capacity, undistilled transformer designed to be the backbone for creators, researchers, and developers who require the highest level of creative freedom.

| Aspect | Z-Image | Z-Image-Turbo |
|---|---|---|
| CFG | ✅ | ❌ |
| Steps | 28~50 | 8 |
| Fintunablity | ✅ | ❌ |
| Negative Prompting | ✅ | ❌ |
| Diversity | High | Low |
| Visual Quality | High | Very High |
| RL | ❌ | ✅ |