Optimal SDXL Resolutions

Fooocus is a web UI created by lllyasviel (Lvmin Zhang), the co-developer of the original control net research, which fundamentally changed Stable Diffusion tech forever.

Fooocus borrows ideas from Midjourney’s ease of use with an open source philosophy, backed by SDXL rendering. But what caught my eye was the list of resolution config that came with the app. It’s a very specific list of values.

SDXL was trained at a base resolution of 1024x1024, but was further fine-tuned on multiple aspect ratios. By targeting these aspect ratios for your renders, you will then have the most optimal results — and hence why you should absolutely follow this table of values when make your renders.

List of Values

Width	Height	Ratio (W:H)	Fraction	Std
704	1408	0.500	1:2	S
704	1344	0.524	11:21
768	1344	0.571	4:7	S
768	1280	0.600	3:5	S
832	1216	0.684	13:19
832	1152	0.722	13:18
896	1152	0.778	7:9	S
896	1088	0.824	14:17	S
960	1088	0.882	15:17
960	1024	0.938	15:16	S
1024	1024	1.000	1:1
1024	960	1.067	16:15
1088	960	1.133	17:15
1088	896	1.214	17:14	S
1152	896	1.286	9:7	S
1152	832	1.385	18:13
1216	832	1.462	19:13
1280	768	1.667	5:3	S
1344	768	1.750	7:4	S
1344	704	1.909	21:11
1408	704	2.000	2:1	S
1472	704	2.091	23:11
1536	640	2.400	12:5
1600	640	2.500	5:2	S
1664	576	2.889	26:9
1728	576	3.000	3:1	S

Images

• Twitter

Config Source

These values were generated as part of the user_path_config file which were created dynamically by script. Source

{
  "available_aspect_ratios": [
        "704*1408",
        "704*1344",
        "768*1344",
        "768*1280",
        "832*1216",
        "832*1152",
        "896*1152",
        "896*1088",
        "960*1088",
        "960*1024",
        "1024*1024",
        "1024*960",
        "1088*960",
        "1088*896",
        "1152*896",
        "1152*832",
        "1216*832",
        "1280*768",
        "1344*768",
        "1344*704",
        "1408*704",
        "1472*704",
        "1536*640",
        "1600*640",
        "1664*576",
        "1728*576"
    ],
    "default_aspect_ratio": "1152*896"
}