Seedream 4.5

Text-to-Image • ByteDance

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

Model Info
More information	link ↗
Pricing	View pricing in the Cloudflare dashboard ↗

Usage

TypeScript
cURL

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

curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run \
  --header "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
  --header "Content-Type: application/json" \
  --data '{
  "model": "bytedance/seedream-4.5",
  "input": {
    "prompt": "A cozy reading nook with floor-to-ceiling bookshelves and a comfortable armchair"
  }
}'

Output
Raw response

{
  "gatewayMetadata": {
    "keySource": "Unified"
  },
  "result": {
    "images": [
      "https://ark-content-generation-v2-ap-southeast-1.tos-ap-southeast-1.volces.com/seedream-4-5/0217764052077481386b9a8ed856c57501cfa946ce34c9865285c_0.jpeg"
    ]
  },
  "state": "Completed"
}

Examples

High Resolution — 4K quality image generation

TypeScript
cURL

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',
    aspect_ratio: '4:3',
    size: '4K',
  },
)
console.log(response)

curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run \
  --header "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
  --header "Content-Type: application/json" \
  --data '{
  "model": "bytedance/seedream-4.5",
  "input": {
    "prompt": "A hyperrealistic still life painting of fresh fruit on an antique wooden table with dramatic chiaroscuro lighting",
    "aspect_ratio": "4:3",
    "size": "4K"
  }
}'

Output
Raw response

{
  "gatewayMetadata": {
    "keySource": "Unified"
  },
  "result": {
    "images": [
      "https://ark-content-generation-v2-ap-southeast-1.tos-ap-southeast-1.volces.com/seedream-4-5/0217764052077581386b9a8ed856c57501cfa946ce34c985dabe3_0.jpeg"
    ]
  },
  "state": "Completed"
}

Image-to-Image — Edit using reference images

TypeScript
cURL

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

curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run \
  --header "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
  --header "Content-Type: application/json" \
  --data '{
  "model": "bytedance/seedream-4.5",
  "input": {
    "prompt": "Transform this scene into a winter wonderland with snow covering everything",
    "aspect_ratio": "match_input_image",
    "image_input": [
      "https://replicate.delivery/xezq/0lxxNQSg3NabCZrDiQVAPGVmjP1Q2dd7TgYCOTfI9LpyZaMLA/tmp89gopylq.jpg"
    ]
  }
}'

Output
Raw response

{
  "gatewayMetadata": {
    "keySource": "Unified"
  },
  "result": {
    "images": [
      "https://ark-content-generation-v2-ap-southeast-1.tos-ap-southeast-1.volces.com/seedream-4-5/0217764052176861386b9a8ed856c57501cfa946ce34c98846458_0.jpeg"
    ]
  },
  "state": "Completed"
}

Sequential Generation — Generate multiple related images

TypeScript
cURL

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',
    aspect_ratio: '16:9',
    max_images: 3,
    sequential_image_generation: 'auto',
  },
)
console.log(response)

curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run \
  --header "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
  --header "Content-Type: application/json" \
  --data '{
  "model": "bytedance/seedream-4.5",
  "input": {
    "prompt": "A character design sheet for a fantasy warrior: front view, side view, and back view",
    "aspect_ratio": "16:9",
    "max_images": 3,
    "sequential_image_generation": "auto"
  }
}'

Output
Raw response

{
  "gatewayMetadata": {
    "keySource": "Unified"
  },
  "result": {
    "images": [
      "https://ark-content-generation-v2-ap-southeast-1.tos-ap-southeast-1.volces.com/seedream-4-5/0217764052291261386b9a8ed856c57501cfa946ce34c98481db1_0.jpeg"
    ]
  },
  "state": "Completed"
}

Multi-Image Edit — Combine multiple reference images

TypeScript
cURL

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',
  },
)
console.log(response)

curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run \
  --header "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
  --header "Content-Type: application/json" \
  --data '{
  "model": "bytedance/seedream-4.5",
  "input": {
    "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"
  }
}'

Output
Raw response

{
  "gatewayMetadata": {
    "keySource": "Unified"
  },
  "result": {
    "images": [
      "https://ark-content-generation-v2-ap-southeast-1.tos-ap-southeast-1.volces.com/seedream-4-5/0217764052323791386b9a8ed856c57501cfa946ce34c98b2f132_0.jpeg"
    ]
  },
  "state": "Completed"
}

aspect_ratio

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

disable_safety_checker

boolean

▶image_input[]

arrayformat: uri

max_images

integermaximum: 15minimum: 1

prompt

stringrequired

sequential_image_generation

stringenum: disabled, auto

size

stringenum: 2K, 4K

▶images[]

arrayminItems: 1format: uri

API Schemas (Raw)

Input

Output