Tencent HY Image: Text to Image generates an image from a prompt, and Tencent HY Image: Edit edits or combines up to five reference images. Both run on Tencent’s servers through Comfy API, so no model downloads or local GPU are required.
What HY Image 3.5 Preview is good at
- Multilingual text and typesetting: renders legible text for posters, infographics, and UI mockups instead of plain scene images
- Photorealistic range: covers cinematic stills, comic art, commercial photography, and illustration from short prompts
- Editing consistency: keeps the defining traits of people and products stable when you change the background, outfit, or style
- Up to 5 reference images: combine several images in one edit and reference each one in the prompt
- Output up to 4K: renders up to 2K natively and upscales 4K output from a 2K render
Tencent HY Image 3.5 Preview text to image workflow
Generate one image from a text prompt. The model rewrites and expands the prompt before rendering, so short prompts work.Run on Comfy Cloud
Open in Comfy Cloud
Download Workflow
Download JSON or search “HY Image 3.5” in Template Library
Steps to run the workflow
- Edit the
promptin theTencent HY Image: Text to Imagenode - (Optional) Set
aspect_ratioto control the output shape. Withautothe model picks the aspect ratio from the prompt, andautois not available at 4K - (Optional) Change
resolutionfrom the default2K.1Kis about 1024x1024 and2Kis about 2048x2048 pixels.4Koutput is rendered at 2K and then upscaled by the model - (Optional) Switch
resolutiontocustomto set an exactwidthandheightinstead. Both must be multiples of 16 and the total area can be up to 4096x4096. Above roughly a 6:1 ratio the model starts repeating the subject - Click
Runor pressCtrl(cmd) + Enterto generate the image - View the result in the
Save Imagenode
Tencent HY Image 3.5 Preview image edit workflow
Edit or combine up to five reference images from a text instruction. Use it to change a background, swap an outfit, restyle a product shot, or merge several references into one image while keeping the subject’s defining traits.
Run on Comfy Cloud
Open in Comfy Cloud
Download Workflow
Download JSON or search “HY Image 3.5” in Template Library
Steps to run the workflow
- Upload the sample image into the
Load Imagenode that is already connected to theTencent HY Image: Editnode. The downloaded workflow refers to the file by name (futuristic_brutalist_motorcycle.png), so that node stays empty until you upload it. To edit your own images instead, connect 1 to 5 images to theimagesinput of theTencent HY Image: Editnode - Write the editing instruction in
prompt. Reference the inputs in order as@Image1,@Image2, and so on. A batched input counts once per image - (Optional) Set
aspect_ratioandresolution. Withauto, the output follows the aspect ratio of the first reference image.4Koutput is rendered at 2K and then upscaled by the model - (Optional) Set
reference_detailtohighto let the model see references at up to 2048x2048 pixels instead of 1024x1024. This preserves small text and fine detail better but takes longer - Click
Runor pressCtrl(cmd) + Enterto generate the image - View the result in the
Save Imagenode
Prompting tips
- Describe the edit and the parts that must stay unchanged separately, for example
@Image1 change the background to a night market, keep the subject and jacket unchanged - Number references in the order they are connected. The numbering in the prompt has to match the input order
watermarksits in the node’s advanced options and is off by default. Turn it on to add an AI-generated watermark to the output
Get started
- Update ComfyUI to the latest version, or use Comfy Cloud
- Go to Template Library and search for
HY Image 3.5 - Open the text to image or image edit workflow and run it