Seedream 4.0 (4k)

Seedream 4.0 generates high-resolution, professional-grade visuals with superior text rendering for impactful design.

~20.55s
$0.035 per generation
PlaygroundAPI
Pricing
 1import requests
 2import json
 3
 4url = "https://api.segmind.com/v1/seedream-4"
 5headers = {
 6    "x-api-key": "YOUR_API_KEY",
 7    "Content-Type": "application/json"
 8}
 9
10data = {
11    "size": "2K",
12    "width": 2048,
13    "height": 2048,
14    "prompt": "Action hero into an apocalypse survivor zombie hunter, torn leather jacket with spikes, glowing red cybernetic eye, dual chainsaw weapons, burning city ruins background, blood splatter effects, horror movie aesthetic, badass energy, ultra-detailed gore",
15    "max_images": 1,
16    "image_input": [
17        "https://segmind-resources.s3.amazonaws.com/input/ee043397-b857-4bf2-9ad0-70258a286e96-504cf296-f8c3-40af-b200-9b52bdae240c.png"
18    ],
19    "sequential_image_generation": "disabled"
20}
21
22response = requests.post(url, headers=headers, json=data)
23
24if response.status_code == 200:
25    result = response.json()
26    print(json.dumps(result, indent=2))
27else:
28    print(f"Error: {response.status_code}")
29    print(response.text)

API Endpoint

POSThttps://api.segmind.com/v1/seedream-4

Parameters

promptrequired
string

Text describing the image to generate. Include subjects like 'sunset mountain view'.

Default: "Action hero into an apocalypse survivor zombie hunter, torn leather jacket with spikes, glowing red cybernetic eye, dual chainsaw weapons, burning city ruins background, blood splatter effects, horror movie aesthetic, badass energy, ultra-detailed gore"
aspect_ratiooptional
string

Determines image proportions. Select '16:9' for widescreen, '1:1' for square format.

Default: null
Allowed values :
"1:1""4:3""3:4""16:9""9:16""3:2""2:3""21:9"
heightoptional
integer

Defines height when size is 'custom'. Set 1024 for small images, 4096 for large posters.

Default: 2048Range: 1024 - 4096
image_inputoptional
string[]

List of image URLs to guide generation. Use for reference; add 1-3 URLs.

max_imagesoptional
integer

Sets image generation limit. Choose 1 for single outcome, 5 for multiple.

Default: 1Range: 1 - 15
sequential_image_generationoptional
string

Controls image creation order. Enable 'auto' for batch generation, 'disabled' otherwise.

Default: "disabled"
Allowed values :
"disabled""auto"
sizeoptional
string

Specifies image resolution. Use '2K' for standard images, '4K' for high-res, 'custom' for unique needs.

Default: "2K"
Allowed values :
"1K""2K""4K""custom"
widthoptional
integer

Defines width when size is 'custom'. Use 1024 for thumbnails, 4096 for detailed art.

Default: 2048Range: 1024 - 4096

Response Type

Returns: Image

Common Error Codes

The API returns standard HTTP status codes. Detailed error messages are provided in the response body.

400

Bad Request

Invalid parameters or request format

401

Unauthorized

Missing or invalid API key

403

Forbidden

Insufficient permissions

404

Not Found

Model or endpoint not found

406

Insufficient Credits

Not enough credits to process request

429

Rate Limited

Too many requests

500

Server Error

Internal server error

502

Bad Gateway

Service temporarily unavailable

504

Timeout

Request timed out