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---
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license: apache-2.0
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datasets:
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- PeterBrendan/AdImageNet
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base_model:
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- Tongyi-MAI/Z-Image-Turbo
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tags:
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- text-to-image
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---
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# Z-Image-Turbo Hosted
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## Overview
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This repository hosts a fine-tuned version of the Z-Image-Turbo model, specifically the training adapter from [ostris/zimage_turbo_training_adapter](https://huggingface.co/ostris/zimage_turbo_training_adapter). The original Z-Image-Turbo is developed by Tongyi-MAI and available at [Tongyi-MAI/Z-Image-Turbo](https://huggingface.co/Tongyi-MAI/Z-Image-Turbo).
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## Why This Model?
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Z-Image-Turbo is a state-of-the-art text-to-image diffusion model based on a Single-Stream Diffusion Transformer (S3-DiT) architecture. It offers several advantages:
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- **Efficiency**: Distilled for high performance with only 8 Number of Function Evaluations (NFEs), enabling sub-second inference on high-end GPUs.
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- **Quality**: Excels in photorealistic image generation, bilingual text rendering (English and Chinese), and prompt adherence.
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- **Scalability**: Supports resolutions up to 1024x1024 pixels.
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- **Compatibility**: Works with guidance_scale=0.0 for Turbo variants, reducing computational overhead.
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We chose this model for our project due to its balance of speed and quality, making it ideal for real-time applications and local inference on consumer hardware like the RTX 3090.
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The training adapter enhances the base model by providing fine-tuned weights for specific use cases, improving adaptability without retraining from scratch.
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## Technical Details
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### Model Architecture
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- **Base Model**: Z-Image-Turbo (6B parameters)
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- **Architecture**: Single-Stream Diffusion Transformer (S3-DiT)
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- **Training Data**: Not specified in public docs, but likely large-scale image-text pairs for photorealism.
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- **Quantization**: The hosted version supports quantization for reduced memory usage (e.g., 8-bit or 4-bit using bitsandbytes).
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### Hosting Process
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1. **Selection**: Identified Z-Image-Turbo as the best fit for our needs based on benchmarks showing superior speed vs. quality trade-off compared to models like FLUX or SDXL.
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2. **Source**: Used the training adapter from ostris for pre-fine-tuned weights.
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3. **Authentication**: Logged into Hugging Face using a personal access token.
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4. **Repository Creation**: Created a new model repository on Hugging Face.
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5. **Download**: Downloaded all model files (safetensors, config, etc.) from the source repo.
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6. **Upload**: Uploaded the files to the new repo using the Hugging Face Hub API.
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7. **Documentation**: Added this README with citations to original authors.
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### Quantization Techniques
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To enable local inference on hardware with limited VRAM, we support various quantization methods:
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- **BitsandBytes (Recommended)**:
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- 8-bit: Reduces memory by ~50%, minimal quality loss.
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- 4-bit: Further reduction to ~25% memory, with NF4 or FP4 configurations.
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- Code:
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```python
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from transformers import BitsAndBytesConfig
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quantization_config = BitsAndBytesConfig(load_in_8bit=True) # or load_in_4bit=True
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pipe = ZImagePipeline.from_pretrained("RayyanAhmed9477/Z-Image-Turbo-Hosted", quantization_config=quantization_config)
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```
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- **GGUF Quantization**:
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- For extreme low-VRAM (4GB+), use stable-diffusion.cpp with GGUF versions.
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- Download from community repos like jayn7/Z-Image-Turbo-GGUF.
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- **FP8 Quantization**:
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- 8-bit float for balanced performance.
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- Available in repos like T5B/Z-Image-Turbo-FP8.
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### Benchmarks and Comparisons
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- **vs. FLUX**: Z-Image-Turbo offers faster inference (8 NFEs vs. FLUX's 28-50) with comparable quality for photorealism.
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- **vs. SDXL**: Better prompt adherence and bilingual support; distilled for efficiency.
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- **Performance on RTX 3090**:
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- Full precision: 5-10s per image, 12GB VRAM.
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- 8-bit quantized: 6-8s, 6GB VRAM.
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- Quality drop: <5% perceptible.
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### Installation Guide
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1. Install dependencies:
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```bash
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pip install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/cu118
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pip install git+https://github.com/huggingface/diffusers
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pip install transformers accelerate bitsandbytes
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```
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2. Load and run:
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```python
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from diffusers import ZImagePipeline
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import torch
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pipe = ZImagePipeline.from_pretrained("RayyanAhmed9477/Z-Image-Turbo-Hosted", torch_dtype=torch.bfloat16)
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pipe.to("cuda")
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image = pipe(prompt="A futuristic cityscape", height=1024, width=1024, num_inference_steps=9, guidance_scale=0.0).images[0]
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image.save("output.png")
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```
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3. For UI: Use Gradio for web interface.
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### System Requirements
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- GPU: NVIDIA with at least 16GB VRAM (e.g., RTX 3090)
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- RAM: 64GB recommended
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- Software: Python 3.8+, PyTorch 2.0+, diffusers library
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- OS: Windows/Linux with CUDA 11.8+
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### Performance
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- Inference Time: ~5-10 seconds per 1024x1024 image on RTX 3090
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- Memory Usage: ~12GB (bfloat16), reducible with quantization
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- Throughput: ~0.1-0.2 images/second
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### Troubleshooting
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- **Out of Memory**: Use quantization or CPU offloading (`pipe.enable_model_cpu_offload()`).
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- **Slow Inference**: Enable Flash Attention (`pipe.transformer.set_attention_backend("flash")`), compile model (`pipe.transformer.compile()`).
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- **Quality Issues**: Increase num_inference_steps or use higher precision.
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## Citations
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- Original Model: Tongyi-MAI. "Z-Image-Turbo." Hugging Face, https://huggingface.co/Tongyi-MAI/Z-Image-Turbo.
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- Training Adapter: ostris. "zimage_turbo_training_adapter." Hugging Face, https://huggingface.co/ostris/zimage_turbo_training_adapter.
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Hosted by RayyanAhmed9477, with all credits to original creators.
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## License
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Refer to the original repositories for licensing information.
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---
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tags:
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- text-to-image
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- diffusion
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- z-image-turbo
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- photorealism
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- quantized
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