Midjourney V7 Prompt Parameter Guide

Parameter Overview

Parameter	Syntax	Type	Range	Default	Description
Aspect Ratio	`--ar W:H`	Integer ratio	Any positive integer ratio	1:1	Image aspect ratio
Chaos	`--c N`	int	0 - 100	0	Diversity of generated results
Negative Prompt	`--no word1,word2`	Keywords	—	—	Exclude unwanted elements
Quality	`--q N`	Enum	1, 2, 4	1	Generation detail level, affects cost
Seed	`--seed N`	int	0 - 4294967295	Random	Fix seed for reproducible results
Stylize	`--s N`	int	0 - 1000	100	Artistic style intensity
Weird	`--w N`	int	0 - 3000	0	Unconventional/surreal degree
Experimental	`--exp N`	int	0 - 100	0	Aesthetic effect (V7 exclusive)
Raw Mode	`--raw`	Flag	—	Off	Disable default beautification
Tile	`--tile`	Flag	—	Off	Seamless repeating pattern
Image Weight	`--iw N`	float	0 - 3	1	Image prompt influence
Style Reference	`--sref [URL]`	URL	—	—	Match visual style
Style Weight	`--sw N`	int	0 - 1000	100	Style reference strength
Style Version	`--sv N`	enum	1, 2, 3, 4, 5, 6	4	Style algorithm version
Object Reference	`--oref [URL]`	URL	—	—	Place character/object (V7 exclusive), doubles cost
Object Reference Weight	`--ow N`	int	1 - 1000	100	Object reference strength
Draft Mode	`--draft`	flag	—	off	10x faster, half cost (V7 exclusive), controlled via API `model_params.speed`

Speed mode (draft / fast / turbo) is controlled via the API’s model_params.speed field. There is no need to manually write --draft / --fast / --turbo in the prompt.

Basic Parameters

Aspect Ratio `--ar`

Sets the image aspect ratio. Only integer ratios are supported.

a cat --ar 16:9

Common values: 1:1, 4:3, 3:2, 16:9, 9:16, 2:3

Chaos `--chaos` / `--c`

Controls the diversity of generated results. Higher values produce greater differences among the 4 images.

a cat --c 50

Range	Effect
0	4 images are very similar (default)
1-50	Moderate diversity
50-100	Highly random, suitable for creative exploration

Negative Prompt `--no`

Excludes unwanted elements, equivalent to -0.5 weight. Supports multiple keywords.

vibrant tulip field --no red,shadows

V7 does not support the :: multi-prompt syntax. You can only use --no to exclude unwanted elements.

Quality `--quality` / `--q`

Controls generation detail level.

a cat --q 2

Value	Description
1	Default, with optimized hand coherence
2	Uses the pre-optimization V7 model
4	Experimental mode (incompatible with `--oref`)

Higher quality values consume more GPU resources and increase costs accordingly.

Seed `--seed`

Fixes the initial random state for comparison testing.

a cat --seed 23453422

Range: 0 - 4294967295
Same seed + same prompt → similar (not identical) results
Not applicable in turbo speed mode

Stylize `--stylize` / `--s`

Adjusts the balance between realism and artistic style.

a cat --s 500

Range	Effect
0-250	Realistic style, faithful to the prompt
250-750	Balanced
750-1000	Strong artistic expression, bold colors and composition

Weird `--weird` / `--w`

Introduces unconventional and surreal elements.

space landscape --w 800

Range	Effect
10-300	Slightly weird
300-1000	Noticeably unconventional elements
1000-3000	Extreme surrealism and abstraction

Experimental `--exp` (V7 Exclusive)

Similar to --stylize but stackable, generating more detailed, dynamic, and creative images.

a cat --exp 25

Recommended values: 5, 10, 25, 50, 100
Noticeable effect changes from 5-50, diminishing returns from 50-100
May override --stylize effects above 25-50

Raw Mode `--raw`

Disables default beautification for stricter adherence to prompt details. Suitable for photorealism or precise control scenarios.

product photo --raw

Tile `--tile`

Generates seamlessly repeating patterns (seamless in all four directions), suitable for textures, wallpapers, and fabric designs.

brick wall texture --tile

Image Reference Parameters

Image Prompt

Place image URLs at the beginning of the prompt to influence the generated content.

https://example.com/ref.jpg text description --iw 1.5

Valid combination rules:

Combination	Valid?
1 image + no text	❌ Invalid (will error)
1 image + text description	✅ Valid
2+ images + no text	✅ Valid
2+ images + text description	✅ Valid

Maximum 20 image prompts
Supported formats: .png, .gif, .webp, .jpg, .jpeg

Image Weight `--iw`

Controls the influence of image prompts on the result. Range 0 - 3, default 1. Higher values produce results closer to the reference image.

https://example.com/ref.jpg watercolor landscape --iw 2.0

Style Reference `--sref`

Matches the visual style (colors, textures, lighting) of the reference image without copying content. Must be used with a text prompt.

a cat --sref https://example.com/style.jpg

Multiple supported: --sref URL1 URL2
Weight allocation supported: --sref URL1::2 URL2::1 (Note: the :: here is weight syntax within the sref parameter, which is a different concept from the multi-prompt :: separator that V7 does not support)
Random style supported: --sref random (returns a numeric code after generation, reusable)
Maximum 20 srefs

Style Weight `--sw`

Controls the influence of the style reference. Range 0 - 1000, default 100.

a cat --sref https://example.com/style.jpg --sw 500

Style Version `--sv`

Switches the style reference algorithm version.

Version	Characteristics
1	Original algorithm, more “atmospheric”
2	Second iteration
3	Updated version of v1
4	Updated version of v2 (default)
5	New in V7
6	New in V7

Object Reference `--oref` (V7 Exclusive)

Places characters, objects, vehicles, or non-human creatures from the reference image into a new image. Must be used with a text prompt.

a duckling holding a magic wand --oref https://example.com/duck.jpg

Using object reference consumes 2x GPU time, doubling the cost. Only one reference image can be used.

Object Reference Weight `--ow` (V7 Exclusive)

Range 1 - 1000, default 100. Recommended to keep below 400, otherwise results may be unpredictable. High --stylize values may require higher --ow to compensate.

duckling --oref https://example.com/duck.jpg --ow 300

Speed Modes

Speed mode is controlled via the API’s model_params.speed field, which is automatically injected into the prompt.

Mode	Description	Cost
`draft`	10x faster, lower quality, can be enhanced later with mj-v7-enhance. Image generation endpoint only	Lowest
`fast`	Standard quality (default)	Standard
`turbo`	Maximum speed	~2x fast

Dependencies

The following parameters require other parameters to take effect:

Parameter	Prerequisite
`--sv`, `--sw`	Requires `--sref`
`--iw`	Requires image prompt
`--ow`	Requires `--oref`
`--sref`, `--oref`	Requires text prompt
Single image prompt	Requires text prompt

Conflicts

Parameter A	Parameter B	Description
`--oref`	draft / turbo speed	Object reference only compatible with fast mode
`--oref`	`--q 4`	Quality 4 is incompatible with object reference
`--oref`	inpaint/pan/outpaint	Object reference images cannot be used for these operations
`--draft`	`--tile`	Draft mode does not support tiling
Image-only prompt	`--stylize` / `--weird`	Incompatible without text

When --exp exceeds 25-50, it will suppress the effect of --stylize. It is recommended to use lower exp values (5-25) when combining them.

Unsupported Parameters in V7

Parameter	Description
`--stop`	Not supported in V7
`--cref` / `--cw`	Use `--oref` object reference instead
`--relax`	V7 does not support relax mode
`--repeat` / `--r`	Not supported via API
`--p` (personalize)	Not supported via API
`{}` permutations	Not supported via API
`--stealth` / `--public`	Not supported by API (images are not publicly accessible)
Multi-prompt `::`	Not supported in V7

Prompt Format Guidelines

Basic Structure

[image URL] text description --param1 value1 --param2 value2

Writing Rules

Parameters go at the end of the text prompt
A space is required before --
Do not use punctuation in parameters
No text can follow after parameters

Examples

a yellow Persian cat --ar 1:2 --s 500

a yellow Persian cat--ar 2:3          ← missing space before --
a yellow Persian cat - - ar 2:3       ← space between --
a yellow Persian cat --ar 2:3, --s 50 ← punctuation in parameters
a yellow Persian cat --ar 2:3 more description ← text after parameters

Content Moderation Notice

Midjourney has a built-in content moderation system. If some generated images are filtered by moderation, credits consumed for that request will not be refunded. Please ensure your prompts comply with content guidelines.

Image Series

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Audio Series

Text Series

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File Management

Midjourney V7 Prompt Parameter Guide

Parameter Overview

Basic Parameters

Aspect Ratio `--ar`

Chaos `--chaos` / `--c`

Negative Prompt `--no`

Quality `--quality` / `--q`

Seed `--seed`

Stylize `--stylize` / `--s`

Weird `--weird` / `--w`

Experimental `--exp` (V7 Exclusive)

Raw Mode `--raw`

Tile `--tile`

Image Reference Parameters

Image Prompt

Image Weight `--iw`

Style Reference `--sref`

Style Weight `--sw`

Style Version `--sv`

Object Reference `--oref` (V7 Exclusive)

Object Reference Weight `--ow` (V7 Exclusive)

Speed Modes

Dependencies

Conflicts

Unsupported Parameters in V7

Prompt Format Guidelines

Basic Structure

Writing Rules

Examples

Content Moderation Notice

​Parameter Overview

​Basic Parameters

​Aspect Ratio --ar

​Chaos --chaos / --c

​Negative Prompt --no

​Quality --quality / --q

​Seed --seed

​Stylize --stylize / --s

​Weird --weird / --w

​Experimental --exp (V7 Exclusive)

​Raw Mode --raw

​Tile --tile

​Image Reference Parameters

​Image Prompt

​Image Weight --iw

​Style Reference --sref

​Style Weight --sw

​Style Version --sv

​Object Reference --oref (V7 Exclusive)

​Object Reference Weight --ow (V7 Exclusive)

​Speed Modes

​Dependencies

​Conflicts

​Unsupported Parameters in V7

​Prompt Format Guidelines

​Basic Structure

​Writing Rules

​Examples

​Content Moderation Notice

Parameter Overview

Basic Parameters

Aspect Ratio `--ar`

Chaos `--chaos` / `--c`

Negative Prompt `--no`

Quality `--quality` / `--q`

Seed `--seed`

Stylize `--stylize` / `--s`

Weird `--weird` / `--w`

Experimental `--exp` (V7 Exclusive)

Raw Mode `--raw`

Tile `--tile`

Image Reference Parameters

Image Prompt

Image Weight `--iw`

Style Reference `--sref`

Style Weight `--sw`

Style Version `--sv`

Object Reference `--oref` (V7 Exclusive)

Object Reference Weight `--ow` (V7 Exclusive)

Speed Modes

Dependencies

Conflicts

Unsupported Parameters in V7

Prompt Format Guidelines

Basic Structure

Writing Rules

Examples

Content Moderation Notice