Create README.md

README.md

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+# LongCat-AudioDiT-1B-Diffusers
+
+Diffusers format for Meituan's [LongCat-AudioDiT-1B](https://huggingface.co/meituan-longcat/LongCat-AudioDiT-1B).
+
+## Model Description
+
+A DiT (Diffusion Transformer) based audio generation model for text-to-audio synthesis.
+
+## Directory Structure
+
+```
+├── model_index.json      # Diffusers config file
+├── text_encoder/         # Text encoder (UMT5)
+├── tokenizer/            # Tokenizer (T5)
+├── transformer/          # Main DiT model
+└── vae/                  # VAE encoder/decoder
+```
+
+## Usage
+
+```python
+from diffusers import LongCatAudioDiTPipeline
+import torch
+
+pipe = LongCatAudioDiTPipeline.from_pretrained(
+    "ruixiangma/LongCat-AudioDiT-1B-Diffusers",
+    torch_dtype=torch.bfloat16
+)
+
+audio = pipe(
+    prompt="A cheerful piano melody",
+    audio_duration_s=5.0,
+    num_inference_steps=50,
+    guidance_scale=4.0
+).audio
+```
+
+## Original Model
+
+- HuggingFace: [meituan-longcat/LongCat-AudioDiT-1B](https://huggingface.co/meituan-longcat/LongCat-AudioDiT-1B)