runwayml/gen4-image

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Runway's Gen-4 Image model with references. Use up to 3 reference images to create the exact image you need. Capture every angle.

Capabilities

Reference ImagesSeed

Cost

$0.080 / image

Input Parameters

Name	Type	Description	Default	Constraints
`prompt`*	string	Text prompt for image generation	`—`	—
`aspect_ratio`	string	Image aspect ratio	`"16:9"`	16:99:164:33:41:121:9
`reference_images`	array	Up to 3 reference images. Images must be between 0.5 and 2 aspect ratio.		—
`reference_tags`	array	An optional tag for each of your reference images. Tags must be alphanumeric and start with a letter. You can reference them in your prompt using @tag_name. Tags must be between 3 and 15 characters.		—
`resolution`	string	Image resolution	`"1080p"`	720p1080p
`seed`	integer	Random seed. Set for reproducible generation	`—`	—

promptrequiredstring

Text prompt for image generation

aspect_ratiostring

Image aspect ratio

Default: "16:9"

16:99:164:33:41:121:9

reference_imagesarray

Up to 3 reference images. Images must be between 0.5 and 2 aspect ratio.

Default:

reference_tagsarray

An optional tag for each of your reference images. Tags must be alphanumeric and start with a letter. You can reference them in your prompt using @tag_name. Tags must be between 3 and 15 characters.

Default:

resolutionstring

Image resolution

Default: "1080p"

720p1080p

seedinteger

Random seed. Set for reproducible generation

Version: 653987038aeaUpdated: 11/7/2026716.0K runs