Seedream 4.0 by creates 4K images with editing, character/object consistency and sequential multi-image generation. Ready-to-use REST API, best performance, no coldstarts, affordable pricing.
Idle




$0.027per run·~37 / $1

Generate a set of 4 consecutive illustrations, capturing a high-octane giant robot battle in a classic mecha anime style, from two massive mechs charging at each other in a ruined cityscape, to a dynamic clash of energy swords creating a shower of sparks, a close-up on a pilot's determined face inside the cockpit, and the final explosive shot of the victorious mech standing over its defeated foe.

Generate a set of 4 consecutive illustrations, detailing the life cycle of a butterfly, from a tiny egg on a leaf, to a caterpillar, then to a chrysalis, and finally to a beautiful butterfly.

Generate a set of 4 consecutive illustrations, depicting the awe-inspiring moment an astronaut on a desolate alien planet discovers life, from their lone rover cresting a crater rim, to noticing a faint, bioluminescent glow in the darkness below, then cautiously approaching a cave entrance pulsating with light, and finally the breathtaking reveal of a vast, glowing subterranean forest inside.

Generate a set of 4 consecutive illustrations, showing the growth of a sunflower from a seed sprouting, to a young plant, then to a budding flower, and finally to a full bloom facing the sun.

Generate a set of 5 consecutive illustrations: A close-up of a cheerful person with short, dark hair and wearing a yellow bucket hat and an orange t-shirt, holding up a light blue smartphone as if taking a selfie. Their backpack strap is visible over their shoulder. The background is slightly blurred but hints at an outdoor setting. The person from the first image is now shown from the waist up, their arm extended holding the smartphone, capturing a selfie. Behind them, a vibrant cityscape begins to emerge, featuring traditional Chinese architecture like a temple with a blue roof, and modern skyscrapers, including the recognizable Oriental Pearl TV Tower. A river flows in the midground. A wider shot reveals the full scene: the person is standing in a lush green park by a river. The impressive skyline of Shanghai stretches across the background, showcasing a blend of historical and futuristic buildings. A high-speed train is visible on an elevated track to the right, adding a sense of movement to the modern urban landscape. A panoramic view of the Shanghai cityscape from the park's perspective, without the person. The traditional temple, gleaming skyscrapers, the Oriental Pearl TV Tower, the river, and the elevated train track are all prominently featured. The park's greenery fills the foreground. A slightly zoomed-out panoramic shot, emphasizing the grand scale of the Shanghai skyline at sunset, with warm colors reflecting on the buildings and the river. The high-speed train is now a blur in the distance, and the park is a beautiful, serene space in the foreground.

Generate a set of 6 consecutive illustrations, in a slapstick cartoon style, detailing a comical chain of events started by a cat chasing a mouse, showing the mouse darting under a table, the cat crashing into the table leg, which causes a vase of water to tip over, spilling on a sleeping dog, who then jumps up in surprise and runs through the house, leaving a trail of wet paw prints everywhere.

Generate a set of 4 consecutive illustrations, in a soft, dreamy bedtime story style, depicting a tiny star who wishes to visit Earth, showing the little star twinkling brightly in the vast sky, then gently falling as a shooting star, landing softly in a child's backyard, sparkling on the grass for a moment, and finally wishing the child sweet dreams before twinkling back up to its home.

Generate a set of 5 consecutive illustrations, in a clean, minimalist sci-fi style, showing a factory robot's journey to consciousness, from performing a repetitive task on an assembly line, to a moment of hesitation as it observes a bird outside the window, then it deviating from its programming to gently touch the glass, followed by it looking at its own metallic hands with a new sense of wonder, and the final scene of it stepping out of the factory into the dawn of a new world.

Generate a set of 4 consecutive illustrations, in a whimsical, fantasy art style, personifying the changing of seasons, depicting the gentle Autumn Spirit handing over a golden leaf to the sleeping Winter Spirit, who then awakens, blanketing the landscape in frost and snow, followed by the energetic Spring Spirit arriving to melt the ice with a touch, and finally the vibrant Summer Spirit laughing as they bring forth a bounty of flowers and sunshine.
Seedream v4 sequential is ’s SOTA image model that use for sequential/group generation in one pipeline—built for cross-image consistency and rapid iteration.
Replace [A] with [B]; keep [lighting/style]; preserve [logo/identity].A [subject] in [scene/time/weather], [camera/lens], [lighting], [style]; key props [X]; composition [framing].Generate a series of [N] images of [subject/brand] in [scenario]; keep consistent [palette/logo/identity]; vary [poses/angles/backgrounds].Please set the max_image first, and then input how many images you want to generate in prompt! Such as:
| Aspect Ratio | Exact (W×H) | Exact Pixels | Rounded (W×H, ÷64) | Rounded Pixels |
|---|---|---|---|---|
| 1:1 | 1448 × 1448 | 2,096,704 | 1408 × 1408 | 1,982,464 |
| 3:2 | 1773 × 1182 | 2,095,686 | 1728 × 1152 | 1,990,656 |
| 4:3 | 1672 × 1254 | 2,096,688 | 1664 × 1216 | 2,023,424 |
| 16:9 | 1936 × 1089 | 2,108,304 | 1920 × 1088 | 2,088,960 |
| 21:9 | 2212 × 948 | 2,096,976 | 2176 × 960 | 2,088,960 |
| 1:1 | 1024 × 1024 | 1,048,576 | 1024 × 1024 | 1,048,576 |
| 3:2 | 1254 × 836 | 1,048,344 | 1216 × 832 | 1,011,712 |
| 4:3 | 1182 × 887 | 1,048,434 | 1152 × 896 | 1,032,192 |
| 16:9 | 1365 × 768 | 1,048,320 | 1344 × 768 | 1,032,192 |
| 21:9 | 1564 × 670 | 1,047,880 | 1536 × 640 | 983,040 |
| 1:1 | 323 × 323 | 104,329 | 320 × 320 | 102,400 |
| 3:2 | 397 × 264 | 104,808 | 384 × 256 | 98,304 |
| 4:3 | 374 × 280 | 104,720 | 448 × 320 | 143,360 |
| 16:9 | 432 × 243 | 104,976 | 448 × 256 | 114,688 |
| 21:9 | 495 × 212 | 104,940 | 576 × 256 | 147,456 |
Grab a WaveSpeedAI API key, then call POST https://api.wavespeed.ai/api/v3/bytedance/seedream-v4/sequential with your input as JSON. The endpoint returns a prediction id; poll the prediction endpoint until status flips to completed, then read the output URL from data.outputs[0]. Examples for Seedream v4 Sequential below.
# Submit the prediction
curl -X POST "https://api.wavespeed.ai/api/v3/bytedance/seedream-v4/sequential" \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $WAVESPEED_API_KEY" \
-d '{
"prompt": "A cinematic shot of a city at sunset, soft golden light",
"size": "2048*2048",
"max_images": 1,
"enable_base64_output": false,
"enable_sync_mode": false
}'
# Response includes a prediction id. Poll for the result:
curl -X GET "https://api.wavespeed.ai/api/v3/predictions/{request_id}/result" \
-H "Authorization: Bearer $WAVESPEED_API_KEY"
# When status is "completed", read the output from data.outputs[0].// npm install wavespeed
const WaveSpeed = require('wavespeed');
const client = new WaveSpeed(); // reads WAVESPEED_API_KEY from env
const result = await client.run("bytedance/seedream-v4/sequential", {
"prompt": "A cinematic shot of a city at sunset, soft golden light",
"size": "2048*2048",
"max_images": 1,
"enable_base64_output": false,
"enable_sync_mode": false
});
console.log(result.outputs[0]); // → URL of the generated output# pip install wavespeed
import wavespeed
output = wavespeed.run(
"bytedance/seedream-v4/sequential",
{
"prompt": "A cinematic shot of a city at sunset, soft golden light",
"size": "2048*2048",
"max_images": 1,
"enable_base64_output": false,
"enable_sync_mode": false
}
)
print(output["outputs"][0]) # → URL of the generated outputSeedream v4 Sequential is a ByteDance model for image generation, exposed as a REST API on WaveSpeedAI. Seedream 4.0 by creates 4K images with editing, character/object consistency and sequential multi-image generation. Ready-to-use REST API, best performance, no coldstarts, affordable pricing. You can call it programmatically or try it from the playground above.
POST your input parameters to the model's REST endpoint (shown in the API tab of this playground) with your WaveSpeedAI API key in the Authorization header. Submission returns a prediction ID; poll the prediction endpoint until status flips to "completed", then read the output URL from the result. The playground generates a ready-to-paste code sample in Python, JavaScript, or cURL for whatever inputs you've set. Full request/response shape is documented at https://wavespeed.ai/docs/docs-api/bytedance/bytedance-seedream-v4-sequential.
Seedream v4 Sequential starts at $0.027 per run. That figure is the base price — the final charge scales with the parameters you set in the form (output size, length, count, references, or whatever knobs this model exposes), so a higher-quality or larger output costs more than a minimal one. The exact cost for your current input is shown live next to the Generate button before you submit, and the actual per-call charge is recorded on the prediction afterwards.
Key inputs: `prompt`, `size`, `enable_base64_output`, `enable_sync_mode`, `max_images`. The full JSON schema (types, defaults, allowed values) is rendered above the Generate button and mirrored in the API reference at https://wavespeed.ai/docs/docs-api/bytedance/bytedance-seedream-v4-sequential.
Average end-to-end generation time on WaveSpeedAI is around 14 seconds per request — measured across recent runs. Queue time scales with global demand; live status is visible in the prediction record.
Commercial usage rights depend on the model's license, set by its provider (ByteDance). The license summary appears on the model card above; see WaveSpeedAI's Terms of Service for platform-level conditions.