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Custom Watermark

hy-image-v3.5-preview adds a watermark through the footnote parameter during generation, so you do not need to composite images yourself.

Parameters​

ParameterTypeRequiredDescription
footnotestringNoWatermark text, up to 16 characters, rendered at the bottom-right corner

Usage Example​

const imageModel = ai.createImageModel("cloudbase");

const res = await imageModel.generateImage({
  model: "hy-image-v3.5-preview",
  footnote: "CloudBase AI",
  messages: [
    {
      role: "user",
      content: [{ type: "text", text: "A chubby orange cat napping on a windowsill, watercolor style, warm tones" }],
    },
  ],
});

console.log(res.choices[0].delta.image.url); // The returned image already contains the watermark

Notes​

  • Up to 16 characters (counted as Unicode characters, CJK and Latin alike)
  • Added synchronously by the server during generation; no extra generation time