Tencent has officially announced that its Hunyuan Image Model 2.1 is now open source. This model is capable of generating images in native 2K resolution, delivering crisper visuals with more intricate details to cater to the demands of professional design and creative work. At the same time, the model boasts native support for both Chinese and English inputs, overcoming language barriers. Moreover, Tencent has also made the PromptEnhancer text-rewriting model open source. This model can automatically flesh out descriptions and enable seamless bidirectional conversion between Chinese and English.