Technical Specifications

System Requirements

VRAM requirements for different quantization methods and context sizes

Hunyuan Large

Hunyuan-DiT is a large-scale Mixture-of-Experts (MoE) diffusion transformer designed for high-fidelity image generation. It represents Tencent's advancement in generative AI, applying a transformer architecture directly to the latent space of image generation. Its primary function is to synthesize diverse and high-quality images from textual prompts, thereby enabling content creation and visual design applications. This model is notable for its modular architecture, allowing efficient scaling and inference.

The Hunyuan-DiT model employs a diffusion transformer architecture, specifically leveraging a Mixture-of-Experts (MoE) design. This architecture partitions the model's parameters into multiple "experts," where only a subset of these experts is activated for each input token during inference. This approach allows the model to achieve a large total parameter count of approximately 389 billion while maintaining a manageable number of active parameters, approximately 52 billion, enhancing computational efficiency. The model incorporates 60 transformer layers with 64 attention heads, utilizing GeLU activation and Layer Normalization. Its design supports flexible image resolutions and uses absolute positional embeddings, integrating Rotary Positional Encoding for enhanced performance. It further utilizes a combination of bilingual CLIP and multilingual T5 encoders for robust text understanding in prompts.

Hunyuan-DiT is engineered for generating high-resolution and visually consistent images, supporting resolutions up to 4096x4096. Its MoE architecture contributes to efficient scaling, making it suitable for deployment in scenarios demanding both high quality and computational prudence. Primary use cases involve creative content generation, visual asset production, and applications requiring advanced text-to-image synthesis capabilities, such as advertising, digital art, and virtual environment design. It also supports multi-turn multimodal dialogue, enabling iterative image refinement based on user interactions.

No evaluation benchmarks for Hunyuan Large available.