google/imagen-4-ultra

Use this ultra version of Imagen 4 when quality matters more than speed and cost

Capabilities

No capability data available

Cost

Community model (estimated from hardware time)

Input Parameters

Name	Type	Description	Default	Constraints
`prompt` *	string	Text prompt for image generation	`—`	—
`aspect_ratio`	string	Aspect ratio of the generated image	`"1:1"`	1:1 9:16 16:9 3:4 4:3
`image_size`	string	Resolution of the generated image	`"1K"`	1K 2K
`output_format`	string	Format of the output image	`"jpg"`	jpg png
`safety_filter_level`	string	block_low_and_above is strictest, block_medium_and_above blocks some prompts, block_only_high is most permissive but some prompts will still be blocked	`"block_only_high"`	block_low_and_above block_medium_and_above block_only_high

prompt required string

Text prompt for image generation

aspect_ratio string

Aspect ratio of the generated image

Default: "1:1"

1:1 9:16 16:9 3:4 4:3

image_size string

Resolution of the generated image

Default: "1K"

1K 2K

output_format string

Format of the output image

Default: "jpg"

jpg png

safety_filter_level string

block_low_and_above is strictest, block_medium_and_above blocks some prompts, block_only_high is most permissive but some prompts will still be blocked

Default: "block_only_high"

block_low_and_above block_medium_and_above block_only_high

Version: 1a75d7b302b3 Updated: 2/26/2026 1.5M runs