Seedream 5.0 Flash API reference
Quick Seedream images, edits and layer splits up to 2K
Call Seedream 5.0 Flash from your own code with one PopNow API key. Below are the exact model IDs to send, every input field the model accepts, what each request costs in credits, and a request you can paste into a terminal.
At a glance
- Made by
- ByteDance
- Output
- Image
- From
- 3.9 credits per image ($0.039)
- Typical time
- about 31 s
1 credit = $0.01. A task holds the highest possible charge when it is accepted and settles the real amount when it finishes, rounded up to whole credits; failed tasks are not charged. Ask POST /api/v1/jobs/quote for the exact figure before you run.
Create Image
bytedance/seedream-5.0-flash/text-to-image
Price
| Option | Credits (per image) | US dollars |
|---|---|---|
Default | 4.35 | $0.0435 |
Parameters
| Field | Type | Default | Allowed | What it does |
|---|---|---|---|---|
promptRequired | string | — | up to 5,000 characters | Describe the image to generate: subject, composition, style, lighting and any exact text. |
aspect_ratioOptional | string | 1:1 | 1:1, 4:3, 3:4, 16:9, 9:16, 3:2, 2:3, 4:5, 5:4, 21:9, 9:21, 2:1, 1:2, 3:1, … (+1) | Output aspect ratio. |
resolutionOptional | string | 2k | 1k, 1.5k, 2k | Output resolution tier. All three tiers cost the same. |
output_formatOptional | string | jpeg | jpeg, png | File format of the returned image. |
Example request
This request runs as it is; any field you leave out uses its default. Put your key in POPNOW_API_KEY first.
curl -X POST "https://api.popnow.ai/api/v1/jobs/createTask?wait=60" \
-H "Authorization: Bearer $POPNOW_API_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: $(uuidgen)" \
-d '{
"model": "bytedance/seedream-5.0-flash/text-to-image",
"input": {
"prompt": "A cozy reading nook beside a rain-streaked window, warm lamp light, a sleeping orange cat on a knitted blanket, soft film grain"
}
}'The response carries a taskId straight away. Read the result with GET /api/v1/jobs/recordInfo, or add callBackUrl to be notified.
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=TASK_ID_FROM_CREATE_TASK" \
-H "Authorization: Bearer $POPNOW_API_KEY"Edit Image
bytedance/seedream-5.0-flash/edit
Price
| Option | Credits (per image) | US dollars |
|---|---|---|
Default | 4.35 | $0.0435 |
Parameters
| Field | Type | Default | Allowed | What it does |
|---|---|---|---|---|
promptRequired | string | — | up to 5,000 characters | Describe the image to produce from the references, and what each reference contributes. |
image_urlsRequired | array<string (uri)> | — | up to 10 items | One to ten reference images that you are authorised to process. |
aspect_ratioOptional | string | auto | auto, 1:1, 4:3, 3:4, 16:9, 9:16, 3:2, 2:3, 4:5, 5:4, 21:9, 9:21, 2:1, 1:2, … (+2) | Output aspect ratio. auto keeps the shape of the first reference image. |
resolutionOptional | string | 2k | 1k, 1.5k, 2k | Output resolution tier. All three tiers cost the same. |
output_formatOptional | string | jpeg | jpeg, png | File format of the returned image. |
backgroundOptional | string | opaque | opaque, transparent | Opaque image, or a PNG with a transparent background (png output, one PNG input with alpha). |
Example request
This request runs as it is; any field you leave out uses its default. Put your key in POPNOW_API_KEY first.
The example uses PopNow sample files in image_urls. Replace them with your own public HTTPS links, uploads or saved assets.
curl -X POST "https://api.popnow.ai/api/v1/jobs/createTask?wait=60" \
-H "Authorization: Bearer $POPNOW_API_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: $(uuidgen)" \
-d '{
"model": "bytedance/seedream-5.0-flash/edit",
"input": {
"prompt": "Change the orange jacket to deep forest green and add soft golden-hour light; keep the face, pose and background unchanged",
"image_urls": [
"https://media.popnow.ai/influencer/examples/marco.webp"
]
}
}'The response carries a taskId straight away. Read the result with GET /api/v1/jobs/recordInfo, or add callBackUrl to be notified.
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=TASK_ID_FROM_CREATE_TASK" \
-H "Authorization: Bearer $POPNOW_API_KEY"Split Layers
bytedance/seedream-5.0-flash/layer-decomposition
Price
| Option | Credits (per image) | US dollars |
|---|---|---|
Default | 3.9 | $0.039 |
Parameters
| Field | Type | Default | Allowed | What it does |
|---|---|---|---|---|
image_urlRequired | string (uri) | — | — | The finished image to split into layers. |
promptOptional | string | — | up to 5,000 characters | Optional: name the elements to separate. Leave empty to let the model pick the main elements. |
resolutionOptional | string | auto | auto, 1k, 1.5k, 2k | Output resolution tier. auto follows the size of the source image. |
output_formatOptional | string | jpeg | jpeg, png | File format of the base image. Layers are always transparent PNG. |
Example request
This request runs as it is; any field you leave out uses its default. Put your key in POPNOW_API_KEY first.
The example uses PopNow sample files in image_url. Replace them with your own public HTTPS links, uploads or saved assets.
curl -X POST "https://api.popnow.ai/api/v1/jobs/createTask" \
-H "Authorization: Bearer $POPNOW_API_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: $(uuidgen)" \
-d '{
"model": "bytedance/seedream-5.0-flash/layer-decomposition",
"input": {
"prompt": "A bright, cheerful scene with soft natural light",
"image_url": "https://media.popnow.ai/influencer/examples/marco.webp"
}
}'The response carries a taskId straight away. Read the result with GET /api/v1/jobs/recordInfo, or add callBackUrl to be notified.
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=TASK_ID_FROM_CREATE_TASK" \
-H "Authorization: Bearer $POPNOW_API_KEY"