Choose a layout, then make it yours
Each template uses a 1024×1024 canvas, yxyx boxes, and coordinates measured from the canvas center.
Menu Card
{
"summary": {
"caption": "A cream paper café menu card photographed from above on a wooden table, warm natural light, refined editorial food photography."
},
"items": [
{
"label": "text",
"caption": "Large Chinese title centered at the top",
"text": "今日特调",
"bbox": [
-380,
-420,
-240,
420
]
},
{
"label": "text",
"caption": "Small English subtitle below the title",
"text": "TODAY'S SPECIAL",
"bbox": [
-220,
-400,
-140,
400
]
},
{
"label": "text",
"caption": "First menu item aligned left",
"text": "桂花拿铁 Osmanthus Latte",
"bbox": [
-100,
-420,
-40,
200
]
},
{
"label": "text",
"caption": "First price aligned right",
"text": "$6.50",
"bbox": [
-100,
220,
-40,
400
]
},
{
"label": "text",
"caption": "Second menu item aligned left",
"text": "抹茶芝士蛋糕 Matcha Cheesecake",
"bbox": [
0,
-420,
60,
200
]
},
{
"label": "text",
"caption": "Second price aligned right",
"text": "$8.00",
"bbox": [
0,
220,
60,
400
]
},
{
"label": "text",
"caption": "Small availability note near the bottom",
"text": "每日限量 · while supplies last",
"bbox": [
120,
-400,
180,
400
]
}
],
"bbox_format": "yxyx",
"bbox_coord_space": "abs_centralized"
}Need custom coordinates? Read the JSON Layout reference for field rules, coordinate ranges, and common mistakes.
Choose a template for the visual job
Menu Card separates two bilingual items from their prices. Poster gives a headline, event information, and call to action distinct regions. Product Label keeps the brand, product name, two short details, and net-weight line separate.
Start with the template closest to your composition. Keep exact wording short, then change one field at a time after the first result.
Centered coordinates on a 1024 × 1024 canvas
Every box uses yxyx order: [top, left, bottom, right]. With abs_centralized, the canvas center is zero, the top-left corner is near [-512, -512], and the bottom-right corner is near [512, 512].
The templates use broad, non-overlapping regions to give the model room. For custom boxes, canvas-specific ranges, and validation errors, use the full JSON Layout reference.
Use layout as guidance, then proofread
OpenMOSS describes JSON layout prompts as experimental. A bounding box communicates the intended region; it does not guarantee design-software precision. Always check spelling, prices, coordinates, and visual hierarchy before publishing a result.