HunyuanImage2.1

What is HunyuanImage 2.1?

HunyuanImage 2.1 is the latest Tencent officially released and open-sourced late at night on September 9, 2025mapping modelIn addition, it has native 2K HD image generation capability, and has achieved comprehensive breakthroughs in complex semantic understanding, multi-subject generation, text embedding, image quality, and open source ecology, making it a benchmark for current open source image generation models.

Its core advantage lies in the accurate analysis of complex semantics, supporting up to 1,000 tokens of cue words, and simultaneously controlling the actions, expressions and scene logic of multiple subjects in the screen, such as generating four-panel comics to maintain the consistency of character behavior. The model's original Chinese and English text embedding technology, text and screen integration is natural, reducing the problem of misalignment and blurring, suitable for commercial posters, advertising design and other scenarios.

The technical architecture adopts dual text encoders and hierarchical semantic information processing, combined with efficient training algorithms, which is comparable to closed-source models in image quality assessment, while increasing inference speed by 12 times. The supporting open source tool chain covers text optimization, multi-style generation and other functions, covering the whole process from creativity to landing. At present, the model weights and code have been opened in full, promoting visual content production into an era of high efficiency and universality.

Core features of HunyuanImage 2.1

1. Native 2K HD Raw
   • Supports the direct generation of high-definition images with a resolution of up to 2048×2048, without post-processing, and with a level of detail comparable to the output of professional design software.
   • pass (a bill or inspection etc) VAE with 32x ultra-high compression ratio Reduce the number of input tokens by combining DINOv2 Feature Alignment Accelerated training for efficient generation.
2. Complex Semantic Understanding and Multi-subject Control
   • Supports up to 1000 cues for tokensThe program can accurately describe scene details, character expressions, actions and multi-object relationships.
   • Example: When generating four-panel comics, you can control the color, texture and mood changes of the chameleon in different scenes separately to ensure logical coherence.
3. Text embedding and scene integration
   • Fine control of the text in the image, support for mixed Chinese and English typesetting, natural integration of text and screen, reducing the problem of misalignment or blurring.
   • Example: When generating a bookstore signboard, the font, color and position of the Chinese "Corner Bookstore" and English "Corner Bookstore" can be adjusted independently.
4. Multi-style support and aesthetic enhancement
   • Covering a wide range of styles such as real people, comics, and vinyl figures, the resulting images are highly aesthetic and commercially applicable.
   • exist SSAE (Semantic Alignment Evaluation) in the open-source model optimization, close to the closed-source commercial model (e.g., GPT-Image); in the GSB (Graphic Quality-Based Assessment) in is on par with the closed-source model Seedream 3.0 and better than the comparable open-source model Qwen-Image.

Scenarios for HunyuanImage 2.1

1. business design
   • Generate high-fidelity product posters, packaging design, support Chinese and English slogan embedding and brand style customization.
   • Example: Generate ad graphics for a coffee brand with precise control over the cup logo, background lighting, and copy layout.
2. content creation
   • Quickly generate long content such as comics and comic strips, and control plot coherence with multiple cue words.
   • Example: Generate a four-panel cartoon of "Chameleon Dilemma" with clear logic of sub-scenes, and the character's movements and expressions highly match the text description.
3. Game & Animation Development
   • Generate character concept maps, scene setting maps, support multi-style switching and detail adjustment.
   • Example: Generate a cyberpunk style pool scene with nebulae, neon lights, floating text and other elements that can be controlled independently.

HunyuanImage2.1 project address

• Project website::https://hunyuan.tencent.com/image
• GitHubrepository::https://github.com/Tencent-Hunyuan/HunyuanImage-2.1
• HuggingFace Model Library::https://huggingface.co/tencent/HunyuanImage-2.1

Recommended Reasons

• Open Source Model BenchmarkingHunyuanImage2.1 jumped to the third place in the HuggingFace model heat list, and Tencent's hybrid model family took three of the top eight spots.
• multimodal layoutTencent hybrid team revealed that the native multimodal image generation model will be released soon, further expanding the boundaries of AI creation.
• Technology Inclusion: Lower the threshold of visual content production through open source and toolchain support, and promote the efficiency revolution in design, advertising, film and television industries.