diff --git a/src/components/image-editor/model3d-generation/Model3dGenerationFormModel.ts b/src/components/image-editor/model3d-generation/Model3dGenerationFormModel.ts
index bc24041bf..81ff9df89 100644
--- a/src/components/image-editor/model3d-generation/Model3dGenerationFormModel.ts
+++ b/src/components/image-editor/model3d-generation/Model3dGenerationFormModel.ts
@@ -56,7 +56,6 @@ export const MODEL3D_SWITCH_OPTIONS: ReadonlyArray<{
 ];
 
 export const MODEL3D_TEXT_PROMPT_MAX_LENGTH = 1024;
-export const MODEL3D_IMAGE_PROMPT_MAX_LENGTH = 512;
 export const MODEL3D_GENERATION_FRAME_SIZE = { width: 1024, height: 1024 };
 export const DEFAULT_MODEL3D_MODEL_VERSION: Model3dModelVersion =
   'v3.1-20260211';