Seedream 5.0 Pro

ByteDance · Image Generation

POST /v1/images/generations

Premium Seedream image model for detailed text-to-image, single-image edits, and multi-reference fusion with 1K and 2K output.

At a glance

Field	Value
Model id	`seedream-5-0-pro`
Model release date	2026-07-08
Input modalities	Text, Image
Output modalities	Image
Context window	-
Weight precision	-
Region	Malaysia
Features	image_generation, image_editing, multi_reference, text_rendering
Native inference	No
New	Yes
Supported endpoints	`POST /v1/images/generations`

Pricing

Charge	Spec	Rate
Output up to 2.36MP	per image	$0.075
Output above 2.36MP	per image	$0.150
Extra input image	per input image after the first	$0.005

Example request

$ curl https://api.empiriolabs.ai/v1/images/generations \
>   -H 'Authorization: Bearer $EMPIRIOLABS_API_KEY' \
>   -H 'Content-Type: application/json' \
>   -d '{"model": "seedream-5-0-pro", "prompt": "a misty forest at dawn", "size": "1024x1024"}'

Parameters

Parameter	Type	Required	Default	Description
`prompt`	string	yes	-	Text prompt. With image attached, becomes an editing or fusion instruction.
`image`	array	no	-	Reference image URL, data URI, or uploaded image object. Seedream 5.0 Pro supports up to 10 reference images.
`images`	array	no	-	Alias for image. Use this for multiple uploaded image references.
`aspect_ratio`	enum	no	`"auto"`	Auto lets the model choose dimensions within the selected resolution tier. Explicit ratios use the preset size for that tier. · Allowed: `auto`, `1:1`, `16:9`, `9:16`, `4:3`, `3:4`, `3:2`, `2:3`, `21:9`
`quality`	enum	no	`"2K"`	Seedream Pro resolution tier. Defaults to 2K. · Allowed: `1K`, `2K`
`size`	string	no	-	Resolution tier or explicit pixel size such as 1K, 2K, or 2048x2048. Explicit pixels override aspect_ratio and quality.
`use_custom_size`	boolean	no	false	Use custom_width and custom_height instead of preset aspect_ratio and quality.
`custom_width`	number	no	-	Custom output width in pixels. Total area must be in [0.92MP, 4.19MP], aspect must be in [1:16, 16:1], and dimensions must be multiples of 16. · Range: 16 – 8192
`custom_height`	number	no	-	Custom output height in pixels. Total area must be in [0.92MP, 4.19MP], aspect must be in [1:16, 16:1], and dimensions must be multiples of 16. · Range: 16 – 8192
`watermark`	boolean	no	false	When enabled, the generated image includes an AI-generated provenance watermark. EmpirioLabs does not add a separate watermark.
`output_format`	enum	no	`"png"`	Output image file format. · Allowed: `jpeg`, `png`
`response_format`	enum	no	`"url"`	Return signed image URLs by default, or include base64 image data when b64_json is requested. · Allowed: `url`, `b64_json`

Notes

Modes

Text to image
Single or multi-image to image

Limits

One output image per request
Up to 10 reference images
1K and 2K resolution tiers
PNG or JPEG output
No grouped-output, streaming, or web-search mode

Content safety

Generated images pass an automated content-safety check. An image flagged as explicit is not returned. Because the image is generated before the check runs, a flagged generation is still billed.

Machine-readable schema: GET https://api.empiriolabs.ai/v1/models/seedream-5-0-pro.