

ELLA
Overview :
ELLA (Efficient Large Language Model Adapter) is a lightweight method that equips existing CLIP-based diffusion models with powerful LLMs. ELLA enhances the model's prompt following capability, enabling text-to-image models to understand long texts. We designed a Time-Sensitive Semantic Connector (TSC) to extract various denoising stage time-step related conditioning from pre-trained LLMs. Our TSC dynamically adapts semantic features for different sampling time steps, helping to freeze U-Net at different semantic levels. ELLA outperforms benchmarks like DPG-Bench, particularly in dense prompting scenarios involving multiple object combinations, diverse attributes, and relationships.
Target Users :
Suitable for scenarios that require improved long text comprehension and prompt following capabilities of text-to-image models.
Use Cases
Social media platforms wanting to improve the prompt alignment of their automatically generated images can leverage ELLA for optimization.
Researchers needing to generate images from complex articles can use ELLA to enhance prompt following and understanding capabilities.
Designers needing to generate images based on detailed descriptions can use ELLA to achieve precise text-to-image conversion.
Features
Enhances the text-alignment capability of diffusion models through LLMs
Improves model prompt following capability without training U-Net and LLMs
Designs a Time-Sensitive Semantic Connector (TSC) to extract time-step related conditioning from LLMs
Provides the Dense Prompt Graph Benchmark to evaluate the dense prompt following capability of text-to-image models
Seamlessly integrates with community models and downstream tools (like LoRA and ControlNet) to improve their text-image alignment capability
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