Seedream 4.5

Text-to-Image • ByteDance • Proxied

Seedream 4.5 builds on 4.0 with multi-reference image support, batch generation, and sequential image generation.

Model Info
More information	link ↗

Usage

const response = await env.AI.run(
  'bytedance/seedream-4.5',
  {
    prompt:
      'A cozy reading nook with floor-to-ceiling bookshelves and a comfortable armchair',
  },
  {
    gateway: { id: 'default' },
  }
)
console.log(response)

Input / Output JSON

Input
Output

{
    "prompt": "A cozy reading nook with floor-to-ceiling bookshelves and a comfortable armchair"
}

{
    "images": [
        "https://replicate.delivery/xezq/v9yfL5jL43WoPK3Cbac7MnfkO1YxGSbqea3rfOO06fOJIsGzC/tmp17mjrmct.jpg"
    ]
}

Examples

High Resolution — 4K quality image generation

const response = await env.AI.run(
  'bytedance/seedream-4.5',
  {
    prompt:
      'A hyperrealistic still life painting of fresh fruit on an antique wooden table with dramatic chiaroscuro lighting',
    size: '4K',
    aspect_ratio: '4:3',
  },
  {
    gateway: { id: 'default' },
  }
)
console.log(response)

Input / Output JSON

Input
Output

{
    "prompt": "A hyperrealistic still life painting of fresh fruit on an antique wooden table with dramatic chiaroscuro lighting",
    "size": "4K",
    "aspect_ratio": "4:3"
}

{
    "images": [
        "https://replicate.delivery/xezq/XgK4QxmepmyhMSOG0Jb05jAhIAxeIVleoxytNLjAQqeDFWjZB/tmp5vwo098k.jpg"
    ]
}

Image-to-Image — Edit using reference images

const response = await env.AI.run(
  'bytedance/seedream-4.5',
  {
    prompt:
      'Transform this scene into a winter wonderland with snow covering everything',
    image_input: [
      'https://replicate.delivery/xezq/0lxxNQSg3NabCZrDiQVAPGVmjP1Q2dd7TgYCOTfI9LpyZaMLA/tmp89gopylq.jpg',
    ],
    aspect_ratio: 'match_input_image',
  },
  {
    gateway: { id: 'default' },
  }
)
console.log(response)

Input / Output JSON

Input
Output

{
    "prompt": "Transform this scene into a winter wonderland with snow covering everything",
    "image_input": [
        "https://replicate.delivery/xezq/0lxxNQSg3NabCZrDiQVAPGVmjP1Q2dd7TgYCOTfI9LpyZaMLA/tmp89gopylq.jpg"
    ],
    "aspect_ratio": "match_input_image"
}

{
    "images": [
        "https://replicate.delivery/xezq/A8YsG3WmRgp5OV3XS47jJyMfrIMBIRRRYVYaWEUSicZy0aMLA/tmpgbcs879h.jpg"
    ]
}

Sequential Generation — Generate multiple related images

const response = await env.AI.run(
  'bytedance/seedream-4.5',
  {
    prompt:
      'A character design sheet for a fantasy warrior: front view, side view, and back view',
    sequential_image_generation: 'auto',
    max_images: 3,
    aspect_ratio: '16:9',
  },
  {
    gateway: { id: 'default' },
  }
)
console.log(response)

Input / Output JSON

Input
Output

{
    "prompt": "A character design sheet for a fantasy warrior: front view, side view, and back view",
    "sequential_image_generation": "auto",
    "max_images": 3,
    "aspect_ratio": "16:9"
}

{
    "images": [
        "https://replicate.delivery/xezq/GhUtCYpyffvUGkI5gyiHfG6XsgZKM47veek1eExlta8lWYNmF/tmpcv5bwg8h.jpg"
    ]
}

Multi-Image Edit — Combine multiple reference images

const response = await env.AI.run(
  'bytedance/seedream-4.5',
  {
    prompt:
      'Combine the style of the first image with the subject from the second image',
    image_input: [
      'https://replicate.delivery/xezq/TRYcLgNMrBpPJVq09ICKXWe4Z8d6olzpK5vtQPOB8O23ZaMLA/tmpaecga26m.jpg',
      'https://replicate.delivery/xezq/1SbAc0aXYXbVD9doyrdCW78hYufVefMsaJXBrETN7Lu2npxsA/tmphvkx7emy.jpg',
    ],
    size: '2K',
  },
  {
    gateway: { id: 'default' },
  }
)
console.log(response)

Input / Output JSON

Input
Output

{
    "prompt": "Combine the style of the first image with the subject from the second image",
    "image_input": [
        "https://replicate.delivery/xezq/TRYcLgNMrBpPJVq09ICKXWe4Z8d6olzpK5vtQPOB8O23ZaMLA/tmpaecga26m.jpg",
        "https://replicate.delivery/xezq/1SbAc0aXYXbVD9doyrdCW78hYufVefMsaJXBrETN7Lu2npxsA/tmphvkx7emy.jpg"
    ],
    "size": "2K"
}

{
    "images": [
        "https://replicate.delivery/xezq/jgYAANfEfZsrTE9p7mtEOssRRcZua7p3s1H6VWPRAey6TrxsA/tmpxntp4kc5.jpg"
    ]
}

prompt

stringrequired

▶image_input[]

arrayformat: uri

size

stringenum: 2K, 4K

aspect_ratio

stringenum: match_input_image, 1:1, 4:3, 3:4, 16:9, 9:16, 3:2, 2:3, 21:9

sequential_image_generation

stringenum: disabled, auto

max_images

integerminimum: 1maximum: 15

disable_safety_checker

boolean

▶images[]

arrayminItems: 1format: uri

API Schemas

Input
Output

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "prompt": {
      "type": "string"
    },
    "image_input": {
      "type": "array",
      "items": {
        "type": "string",
        "format": "uri"
      }
    },
    "size": {
      "type": "string",
      "enum": [
        "2K",
        "4K"
      ]
    },
    "aspect_ratio": {
      "type": "string",
      "enum": [
        "match_input_image",
        "1:1",
        "4:3",
        "3:4",
        "16:9",
        "9:16",
        "3:2",
        "2:3",
        "21:9"
      ]
    },
    "sequential_image_generation": {
      "type": "string",
      "enum": [
        "disabled",
        "auto"
      ]
    },
    "max_images": {
      "type": "integer",
      "minimum": 1,
      "maximum": 15
    },
    "disable_safety_checker": {
      "type": "boolean"
    }
  },
  "required": [
    "prompt"
  ],
  "additionalProperties": false
}

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "images": {
      "minItems": 1,
      "type": "array",
      "items": {
        "type": "string",
        "format": "uri"
      }
    }
  },
  "required": [
    "images"
  ],
  "additionalProperties": false
}