Seedream 5.0 Lite Sequential

doubao/seedream-5.0-lite/text-to-image-sequential

Seedream 5.0 Lite Sequential generates multi-image sets with consistent characters and objects, unifying palette, lighting, and style across all outputs. Supports up to 4K results for campaigns, storyboards, and product lines. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Examples

Seedream 5.0 Lite Sequential example 1

Parameters

NameTypeDefaultConstraintsDescription
prompt *Prompttextarea≤ 5000 charsThe positive prompt for the generation.
sizeSizetext2048x2048≤ 500 charsSpecify the width and height pixel values of the generated image.Total pixel value range: [2560*1440, 4096*4096]
max_imagesMax Imagesslider11 ~ 15 · step 1The maximum number of images that can be generated (up to 15). This value must align with the number of images specified in the prompt above.
output_formatOutput Formatselectjpeg | pngThe format of the output image.

API

Call this model through one unified REST API. Get a key on the API Keys page.

cURL
# 1) Submit — returns { "task_uuid": "..." }
curl -X POST "https://www.namifusion.com/api/v1/marketplace/run/doubao/seedream-5.0-lite/text-to-image-sequential" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "input": {
    "prompt": "A futuristic cityscape at sunset with flying cars and neon lights, rendered in a cinematic style. Please generate a set of 5 images.",
    "size": "3840x2160",
    "max_images": 5,
    "output_format": "png"
  }
}'

# 2) Poll until status is "completed", then read the output URLs
curl "https://www.namifusion.com/api/v1/marketplace/run/tasks/TASK_UUID" \
  -H "Authorization: Bearer YOUR_API_KEY"
Python
import time, requests

API_KEY = "YOUR_API_KEY"
HEADERS = {"Authorization": f"Bearer {API_KEY}"}

# 1) Submit
resp = requests.post(
    "https://www.namifusion.com/api/v1/marketplace/run/doubao/seedream-5.0-lite/text-to-image-sequential",
    headers=HEADERS,
    json={
        "input": {
            "prompt": "A futuristic cityscape at sunset with flying cars and neon lights, rendered in a cinematic style. Please generate a set of 5 images.",
            "size": "3840x2160",
            "max_images": 5,
            "output_format": "png"
        }
    },
)
resp.raise_for_status()  # 401/402/429/5xx stop here instead of polling a bad task
task = resp.json()

# 2) Poll until a terminal state (completed / failed / cancelled).
#    This model is allowed up to 300s server-side.
deadline = time.time() + 360
while task.get("status") not in ("completed", "failed", "cancelled"):
    if time.time() > deadline:
        raise TimeoutError(f"still {task.get('status')} — keep the task_uuid and poll later")
    time.sleep(3)
    poll = requests.get(f"https://www.namifusion.com/api/v1/marketplace/run/tasks/{task['task_uuid']}", headers=HEADERS)
    poll.raise_for_status()
    task = poll.json()

print(task["status"], task.get("output"))
JavaScript
const API_KEY = "YOUR_API_KEY";
const HEADERS = { Authorization: `Bearer ${API_KEY}` };

// 1) Submit
const resp = await fetch("https://www.namifusion.com/api/v1/marketplace/run/doubao/seedream-5.0-lite/text-to-image-sequential", {
  method: "POST",
  headers: { ...HEADERS, "Content-Type": "application/json" },
  body: JSON.stringify({
    "input": {
      "prompt": "A futuristic cityscape at sunset with flying cars and neon lights, rendered in a cinematic style. Please generate a set of 5 images.",
      "size": "3840x2160",
      "max_images": 5,
      "output_format": "png"
    }
  }),
});
if (!resp.ok) throw new Error(`submit failed: ${resp.status} ${await resp.text()}`);
let task = await resp.json();

// 2) Poll until a terminal state (completed / failed / cancelled).
//    This model is allowed up to 300s server-side.
const deadline = Date.now() + 360 * 1000;
while (!["completed", "failed", "cancelled"].includes(task.status)) {
  if (Date.now() > deadline) throw new Error(`still ${task.status} — keep the task_uuid and poll later`);
  await new Promise((r) => setTimeout(r, 3000));
  const poll = await fetch(`https://www.namifusion.com/api/v1/marketplace/run/tasks/${task.task_uuid}`, { headers: HEADERS });
  if (!poll.ok) throw new Error(`poll failed: ${poll.status}`);
  task = await poll.json();
}

console.log(task.status, task.output);

Documentation

Seedream 5.0 Lite Sequential

Generate coherent multi-image sequences with unmatched consistency and style.

Seedream 5.0 Lite Sequential is a state-of-the-art text-to-image model designed for generating multi-image sets with consistent characters, objects, and visual styles. Ideal for storytelling, campaigns, and product lines, this model supports resolutions up to 4K and offers flexible aspect ratios. With no cold starts and affordable pricing, it ensures seamless and efficient performance.

🚀 Key Features

  • Multi-Image Generation: Generate multiple related images in a single run with consistent style and character identity.
  • Character Consistency: Maintains character proportions, identity, and visual coherence across all images.
  • High Resolution Support: Customize resolutions from 1440×1440 to 8192×8192 pixels, perfect for professional-grade outputs.
  • Flexible Aspect Ratios: Choose from presets like 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, and 2:3, or define custom dimensions.
  • Built-in Prompt Enhancer: Automatically refine your descriptions for optimal results.
  • Affordable Pricing: Competitive rates starting at $0.035 per image.

🛠️ Technical Specifications

ParameterDescriptionDefault ValueRange/Options
PromptDescribe the images to generate, including the count.Required-
SizeSpecify width and height in pixels.2048×20481440–8192 per dimension
Max ImagesNumber of images to generate.11–15
Output FormatFormat of the output image.JPEGJPEG, PNG

Example Prompt

max_images = 2
Prompt: “2 images. First, a young princess in a torn royal dress sneaking through a dark castle corridor… Second, the princess and the cloaked figure riding together on horseback at dawn…”

💰 Pricing

Max ImagesTotal Price
1$0.035
2$0.07
4$0.14
8$0.28

Billing Formula: Total cost = $0.035 × max_images

💡 Best Use Cases

  • Visual Storytelling: Create sequential narratives with consistent characters and styles.
  • Storyboards: Generate scene-by-scene illustrations for film or project planning.
  • Comic & Manga: Produce multi-panel visual sequences with character continuity.
  • Marketing Campaigns: Design cohesive visual series for brand storytelling.
  • Social Media Content: Create carousel posts with narrative flow.

🔗 Related Models

  • Seedream V5.0 Lite Edit Sequential: Multi-image editing with consistent identity.
  • Seedream V5.0 Lite Text-to-Image: Single-image generation.
  • Seedream V5.0 Lite Edit: Single-image editing with style transfer.

For authentication details, please refer to the Authentication Guide.

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