💬 Midjourney Complete Parameter List

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Parameter	Usage	Example	Notes	V5	V4	V3	niji
Version	After prompt, add:--v or —v--version or —version	vibrant california poppies --v 5	Only supports 1, 2, 3, 4, 5.
Aspect Ratio	After prompt, add:--ar or —ar--aspect or —aspect	vibrant california poppies --ar 5:4	Default is 1:1Must be integer ratios e.g. 1.3:1 won't work, but 13:10 willMay cause slight changes when enlarging - e.g. 16:9 (1.75) may end up 7:4 (1.74)	✅ Supports any ratio, but over 2:1 is experimental and may cause unpredictable results.	✅ 1:2 to 2:1	✅ 5:2 to 2:5	✅ 1:2 to 2:1
No	After prompt, add:--no or —no	--no plants	Null	✅	✅	✅	✅
Randomness	After prompt, add number:--c or —c--chaos or —chaos	--c 10	0 to 100, default 0	✅	✅	✅	✅
Stylization	After prompt, add number:--s or —s--stylize or —stylize	--s 50	Default 100	✅	✅	✅	✅
Detail	After prompt, add:--q or —q--quality or —quality	woodcut birch forest --q .25	Default 1. Only .25, .5, 1, 2. >2 downgraded to 2.	✅	✅	✅	✅
Seed	After prompt, add:--seed or —seed--sameseed or —sameseed	woodcut birch forest --seed 123	Same text + seed gives same imageV1/2/3 and test versions can't regenerate same, only similar	✅	✅	✅ But only similar	✅
Image Weight	After prompt, add:--iw or —iw	flowers.jpg birthday cake --iw .5	Defaults and ranges differ by version (AI applies this even if you don't)	✅ Default 1, range 0.5-2	❌	✅ Default 0.25, range -10000-10000	❌