Seedream 5.0 Lite Edit Sequential

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

Seedream 5.0 Lite Edit Sequential performs multi-image editing while locking character and object identity across shots. It detects main subjects, preserves continuity, and applies controlled edits with up to 4K output. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Examples

Seedream 5.0 Lite Edit Sequential example 1

Parameters

NameTypeDefaultConstraintsDescription
images *Imagesimage_uploadimage/* · 1–10 itemsThe images to edit. A maximum of 10 reference images can be uploaded.
prompt *Prompttextarea≤ 5000 charsThe positive prompt for the generation.
sizeSizetext2048x2048≤ 500 charsSpecify the width and height pixel values of the generated image.
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/image-to-image-sequential" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "input": {
    "images": [
      "https://assets-public.namifusion.com/uploads/images/2026-04-21/958d27011a3d.png"
    ],
    "prompt": "A futuristic cityscape at sunset with flying cars and neon-lit buildings, featuring a central character standing on a balcony. Please generate a set of 5 images.",
    "size": "2048x2048",
    "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/image-to-image-sequential",
    headers=HEADERS,
    json={
        "input": {
            "images": [
                "https://assets-public.namifusion.com/uploads/images/2026-04-21/958d27011a3d.png"
            ],
            "prompt": "A futuristic cityscape at sunset with flying cars and neon-lit buildings, featuring a central character standing on a balcony. Please generate a set of 5 images.",
            "size": "2048x2048",
            "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/image-to-image-sequential", {
  method: "POST",
  headers: { ...HEADERS, "Content-Type": "application/json" },
  body: JSON.stringify({
    "input": {
      "images": [
        "https://assets-public.namifusion.com/uploads/images/2026-04-21/958d27011a3d.png"
      ],
      "prompt": "A futuristic cityscape at sunset with flying cars and neon-lit buildings, featuring a central character standing on a balcony. Please generate a set of 5 images.",
      "size": "2048x2048",
      "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 Edit Sequential

Effortless multi-image editing with identity preservation

Seedream 5.0 Lite Edit Sequential is a cutting-edge text-to-image model designed for seamless multi-image editing. It excels at maintaining subject identity and continuity across multiple images, making it ideal for campaigns, product series, and character design. With support for up to 4K resolution, no cold starts, and affordable pricing, this model is optimized for high-quality, scalable editing tasks.


🚀 Key Features

  • Multi-image subject tracking: Automatically detects and locks onto the main subject across all input images.
  • Character consistency lock: Preserves facial structure, proportions, and overall identity across edited outputs.
  • High reference fidelity: Maintains lighting, color balance, and visual details while applying edits.
  • Controlled, repeatable edits: Apply consistent transformations across entire image batches using a single prompt.
  • Multiple style variations: Generate diverse outputs from a single reference image.
  • Built-in Prompt Enhancer: Automatically refines your edit descriptions for better results.

🛠️ Technical Specifications

ParameterDescriptionRange/Options
imagesSource images to edit (max: 10 images).1–10 items
promptPositive prompt describing the desired edit.String
sizeSpecify width and height of the output image.512–8192 pixels per side
max_imagesMaximum number of images to generate.1–15 (default: 1)
output_formatFormat of the output image.jpeg, png

Sample Prompts

  1. Prompt: "Apply a cyberpunk neon style to all images."
  2. Prompt: "Generate 3 images with a winter outfit and snow ambience."

💰 Pricing

Max ImagesTotal Price
1$0.035
2$0.07
4$0.14
8$0.28
15$0.525

Billing Formula: Base price of $0.035 per output image.


💡 Best Use Cases

  • Batch Portrait Editing: Apply consistent styles across multiple portraits.
  • Product Series: Create coherent product images for catalogs or campaigns.
  • Brand Campaigns: Iterate on hero products with diverse styles.
  • Character Design: Generate variations in outfits, moods, or lighting.
  • E-commerce Catalogs: Refresh seasonal updates with consistent styling.
  • Social Media Series: Create visually cohesive series for platforms.

🔗 Related Models

  • Seedream V5.0 Lite Edit: Single-image editing with style transfer.
  • Seedream V5.0 Lite Text-to-Image: Generate images directly from text prompts.
  • Qwen Image Edit Plus: Advanced single-image editing with semantic understanding.

Pro Tips

  • Use clear, global instructions in your prompt (e.g., "add winter outfit and snow ambience") for better results.
  • Ensure input images have consistent framing and lighting.
  • Place the clearest reference image first for optimal identity tracking.
  • Start with smaller batches (2–4 images) for stability.

Note: Maximum reference images: 10. Maximum output images per run: 15.


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Seedream 5.0 Lite Edit Sequential API — Pricing, Playground & Docs | NamiFusion