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Documentation Index

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Seedream 4.0 T2I is ByteDance’s new-generation image creation model that integrates both generation and editing capabilities within a unified architecture. It produces high-quality images with excellent prompt adherence.

Try in playground

Test Seedream 4.0 T2I in the Runpod Hub playground.
Endpointhttps://api.runpod.ai/v2/seedream-v4-t2i/runsync
Pricing$0.027 per image
TypeImage generation

​
Request

All parameters are passed within the input object in the request body.
​
input.prompt
string
required
Text description of the desired image.
​
input.negative_prompt
string
Elements to exclude from the generated image.
​
input.size
string
default:"1024*1024"
Image dimensions in format “width*height”.
​
input.seed
integer
default:"-1"
Seed for reproducible results. Set to -1 for random.
​
input.enable_safety_checker
boolean
default:"true"
Enable content safety checking.
curl -X POST "https://api.runpod.ai/v2/seedream-v4-t2i/runsync" \
  -H "Authorization: Bearer $RUNPOD_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "input": {
      "prompt": "American retro 1950s illustration style, diner scene",
      "negative_prompt": "",
      "size": "2048*2048",
      "seed": -1,
      "enable_safety_checker": true
    }
  }'

​
Response

​
id
string
Unique identifier for the request.
​
status
string
Request status. Returns COMPLETED on success, FAILED on error.
​
delayTime
integer
Time in milliseconds the request spent in queue before processing began.
​
executionTime
integer
Time in milliseconds the model took to generate the image.
​
workerId
string
Identifier of the worker that processed the request.
​
output
object
The generation result containing the image URL and cost.
​
output.image_url
string
URL of the generated image. This URL expires after 7 days.
​
output.cost
float
Cost of the generation in USD, calculated based on the output megapixels.
{
  "id": "sync-a1b2c3d4-e5f6-7890-abcd-ef1234567890-u1",
  "status": "COMPLETED",
  "delayTime": 16,
  "executionTime": 5234,
  "workerId": "oqk7ao1uomckye",
  "output": {
    "image_url": "https://image.runpod.ai/abc123/output.png",
    "cost": 0.113246
  }
}
Image URLs expire after 7 days. Download and store generated images immediately if you need to keep them.

​
Cost calculation

Seedream 4.0 T2I charges $0.027 per image generated.