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bytedance · Image

Seedream 5.0 Flash

Image model · Available upstream

Fast, cost-efficient image generation and multi-reference editing with layer decomposition

API documentationView pricing

Generation is available through the published Meldport configurations below. Review the exact quote before submitting.

Model ID
bytedance-seedream-5-0-flash
Released
Sep 28, 2026
Billing unit
Generated output

Meldport generation prices

Seedream 5.0 Flash

API configuration IDd6ee6706-33d1-4613-8723-cc9a4f65ba71

text to image

Generation$0.023112/ generation

1 output

API request and parameters

Use images:generate on your API key. This configuration runs text to image and returns image/jpeg.

This configuration does not require an uploaded image. Choose a different configuration ID to change the workflow or output settings. Send only options listed below.

These output settings are included in this configuration. Select another configuration ID to change them. Do not add them to options.

generation_parametersJSON
{
  "width": 2048,
  "height": 2048
}

This configuration has no additional request options.

Replace the prompt and set a unique MELDPORT_IDEMPOTENCY_KEY for this operation. The example quotes the request and then creates one paid job. Read the billing rules before accepting variable charges.

generate.mjsJavaScript
const api = "https://api.meldport.com";
const key = process.env.MELDPORT_API_KEY;
const idempotencyKey = process.env.MELDPORT_IDEMPOTENCY_KEY;
if (!key || !idempotencyKey) throw new Error("Set your API key and a unique operation ID first.");

async function post(path, body) {
  const response = await fetch(api + path, {method: "POST",
    headers: {Authorization: `Bearer ${key}`, "Content-Type": "application/json"},
    body: JSON.stringify(body)});
  const result = await response.json();
  if (!response.ok) throw new Error(JSON.stringify(result.error));
  return result;
}

const request = {
  "configuration_id": "d6ee6706-33d1-4613-8723-cc9a4f65ba71",
  "prompt": "Replace with your prompt or speech script.",
  "options": {},
  "input_asset_ids": []
};
const {data: quote} = await post("/v1/media/quotes", request);
console.log("Quote:", quote);
const result = await post("/v1/media/jobs", {
  ...request, idempotency_key: idempotencyKey,
  accepted_customer_price_microusd: quote.customer_price_microusd,
  accepted_maximum_reservation_microusd: quote.maximum_reservation_microusd,
  ...(quote.billing_policy_version === "actual-cost-v1"
    ? {billing_policy_version: "actual-cost-v1"} : {}),
});
console.log(result.job);
// Poll GET /v1/media/jobs/<job.id> with the same API key.
// Keep this operation ID for retries. A new ID requests another generation.

Poll the returned job ID. Download only after state is succeeded and billing_state is settled. Polling and download example.

Seedream 5.0 Flash

API configuration IDc27081fd-17e1-4d88-a8e3-2d0e2a935bec

text to image

Generation$0.023112/ generation

1 output

API request and parameters

Use images:generate on your API key. This configuration runs text to image and returns image/jpeg.

This configuration does not require an uploaded image. Choose a different configuration ID to change the workflow or output settings. Send only options listed below.

These output settings are included in this configuration. Select another configuration ID to change them. Do not add them to options.

generation_parametersJSON
{
  "width": 1024,
  "height": 1024
}

This configuration has no additional request options.

Replace the prompt and set a unique MELDPORT_IDEMPOTENCY_KEY for this operation. The example quotes the request and then creates one paid job. Read the billing rules before accepting variable charges.

generate.mjsJavaScript
const api = "https://api.meldport.com";
const key = process.env.MELDPORT_API_KEY;
const idempotencyKey = process.env.MELDPORT_IDEMPOTENCY_KEY;
if (!key || !idempotencyKey) throw new Error("Set your API key and a unique operation ID first.");

async function post(path, body) {
  const response = await fetch(api + path, {method: "POST",
    headers: {Authorization: `Bearer ${key}`, "Content-Type": "application/json"},
    body: JSON.stringify(body)});
  const result = await response.json();
  if (!response.ok) throw new Error(JSON.stringify(result.error));
  return result;
}

const request = {
  "configuration_id": "c27081fd-17e1-4d88-a8e3-2d0e2a935bec",
  "prompt": "Replace with your prompt or speech script.",
  "options": {},
  "input_asset_ids": []
};
const {data: quote} = await post("/v1/media/quotes", request);
console.log("Quote:", quote);
const result = await post("/v1/media/jobs", {
  ...request, idempotency_key: idempotencyKey,
  accepted_customer_price_microusd: quote.customer_price_microusd,
  accepted_maximum_reservation_microusd: quote.maximum_reservation_microusd,
  ...(quote.billing_policy_version === "actual-cost-v1"
    ? {billing_policy_version: "actual-cost-v1"} : {}),
});
console.log(result.job);
// Poll GET /v1/media/jobs/<job.id> with the same API key.
// Keep this operation ID for retries. A new ID requests another generation.

Poll the returned job ID. Download only after state is succeeded and billing_state is settled. Polling and download example.

Seedream 5.0 Flash

API configuration IDe0d9d560-d4b4-497b-9e3c-dc7e74b5ade6

image to image

Generation$0.023112/ generation

1 output

API request and parameters

Use images:generate on your API key. This configuration runs image to image and returns image/jpeg.

Upload an image using the same API key, then replace YOUR_UPLOADED_ASSET_ID. Input upload example. Choose a different configuration ID to change the workflow or output settings. Send only options listed below.

These output settings are included in this configuration. Select another configuration ID to change them. Do not add them to options.

generation_parametersJSON
{
  "width": 1024,
  "height": 1024
}

This configuration has no additional request options.

Replace the prompt and set a unique MELDPORT_IDEMPOTENCY_KEY for this operation. The example quotes the request and then creates one paid job. Read the billing rules before accepting variable charges.

generate.mjsJavaScript
const api = "https://api.meldport.com";
const key = process.env.MELDPORT_API_KEY;
const idempotencyKey = process.env.MELDPORT_IDEMPOTENCY_KEY;
if (!key || !idempotencyKey) throw new Error("Set your API key and a unique operation ID first.");

async function post(path, body) {
  const response = await fetch(api + path, {method: "POST",
    headers: {Authorization: `Bearer ${key}`, "Content-Type": "application/json"},
    body: JSON.stringify(body)});
  const result = await response.json();
  if (!response.ok) throw new Error(JSON.stringify(result.error));
  return result;
}

const request = {
  "configuration_id": "e0d9d560-d4b4-497b-9e3c-dc7e74b5ade6",
  "prompt": "Replace with your prompt or speech script.",
  "options": {},
  "input_asset_ids": [
    "YOUR_UPLOADED_ASSET_ID"
  ]
};
const {data: quote} = await post("/v1/media/quotes", request);
console.log("Quote:", quote);
const result = await post("/v1/media/jobs", {
  ...request, idempotency_key: idempotencyKey,
  accepted_customer_price_microusd: quote.customer_price_microusd,
  accepted_maximum_reservation_microusd: quote.maximum_reservation_microusd,
  ...(quote.billing_policy_version === "actual-cost-v1"
    ? {billing_policy_version: "actual-cost-v1"} : {}),
});
console.log(result.job);
// Poll GET /v1/media/jobs/<job.id> with the same API key.
// Keep this operation ID for retries. A new ID requests another generation.

Poll the returned job ID. Download only after state is succeeded and billing_state is settled. Polling and download example.

Seedream 5.0 Flash

API configuration IDcdc7dc3a-cb55-4e3c-aa71-a6615cc9df95

image to image

Generation$0.023112/ generation

1 output

API request and parameters

Use images:generate on your API key. This configuration runs image to image and returns image/jpeg.

Upload an image using the same API key, then replace YOUR_UPLOADED_ASSET_ID. Input upload example. Choose a different configuration ID to change the workflow or output settings. Send only options listed below.

These output settings are included in this configuration. Select another configuration ID to change them. Do not add them to options.

generation_parametersJSON
{
  "width": 2048,
  "height": 2048
}

This configuration has no additional request options.

Replace the prompt and set a unique MELDPORT_IDEMPOTENCY_KEY for this operation. The example quotes the request and then creates one paid job. Read the billing rules before accepting variable charges.

generate.mjsJavaScript
const api = "https://api.meldport.com";
const key = process.env.MELDPORT_API_KEY;
const idempotencyKey = process.env.MELDPORT_IDEMPOTENCY_KEY;
if (!key || !idempotencyKey) throw new Error("Set your API key and a unique operation ID first.");

async function post(path, body) {
  const response = await fetch(api + path, {method: "POST",
    headers: {Authorization: `Bearer ${key}`, "Content-Type": "application/json"},
    body: JSON.stringify(body)});
  const result = await response.json();
  if (!response.ok) throw new Error(JSON.stringify(result.error));
  return result;
}

const request = {
  "configuration_id": "cdc7dc3a-cb55-4e3c-aa71-a6615cc9df95",
  "prompt": "Replace with your prompt or speech script.",
  "options": {},
  "input_asset_ids": [
    "YOUR_UPLOADED_ASSET_ID"
  ]
};
const {data: quote} = await post("/v1/media/quotes", request);
console.log("Quote:", quote);
const result = await post("/v1/media/jobs", {
  ...request, idempotency_key: idempotencyKey,
  accepted_customer_price_microusd: quote.customer_price_microusd,
  accepted_maximum_reservation_microusd: quote.maximum_reservation_microusd,
  ...(quote.billing_policy_version === "actual-cost-v1"
    ? {billing_policy_version: "actual-cost-v1"} : {}),
});
console.log(result.job);
// Poll GET /v1/media/jobs/<job.id> with the same API key.
// Keep this operation ID for retries. A new ID requests another generation.

Poll the returned job ID. Download only after state is succeeded and billing_state is settled. Polling and download example.

Seedream 5.0 Flash

API configuration ID31759230-a0fe-4ecc-8bc9-7b0424698879

image to image

Generation$0.023112/ generation

1 output

API request and parameters

Use images:generate on your API key. This configuration runs image to image and returns image/jpeg.

Upload an image using the same API key, then replace YOUR_UPLOADED_ASSET_ID. Input upload example. Choose a different configuration ID to change the workflow or output settings. Send only options listed below.

This configuration has no additional request options.

Replace the prompt and set a unique MELDPORT_IDEMPOTENCY_KEY for this operation. The example quotes the request and then creates one paid job. Read the billing rules before accepting variable charges.

generate.mjsJavaScript
const api = "https://api.meldport.com";
const key = process.env.MELDPORT_API_KEY;
const idempotencyKey = process.env.MELDPORT_IDEMPOTENCY_KEY;
if (!key || !idempotencyKey) throw new Error("Set your API key and a unique operation ID first.");

async function post(path, body) {
  const response = await fetch(api + path, {method: "POST",
    headers: {Authorization: `Bearer ${key}`, "Content-Type": "application/json"},
    body: JSON.stringify(body)});
  const result = await response.json();
  if (!response.ok) throw new Error(JSON.stringify(result.error));
  return result;
}

const request = {
  "configuration_id": "31759230-a0fe-4ecc-8bc9-7b0424698879",
  "prompt": "Replace with your prompt or speech script.",
  "options": {},
  "input_asset_ids": [
    "YOUR_UPLOADED_ASSET_ID"
  ]
};
const {data: quote} = await post("/v1/media/quotes", request);
console.log("Quote:", quote);
const result = await post("/v1/media/jobs", {
  ...request, idempotency_key: idempotencyKey,
  accepted_customer_price_microusd: quote.customer_price_microusd,
  accepted_maximum_reservation_microusd: quote.maximum_reservation_microusd,
  ...(quote.billing_policy_version === "actual-cost-v1"
    ? {billing_policy_version: "actual-cost-v1"} : {}),
});
console.log(result.job);
// Poll GET /v1/media/jobs/<job.id> with the same API key.
// Keep this operation ID for retries. A new ID requests another generation.

Poll the returned job ID. Download only after state is succeeded and billing_state is settled. Polling and download example.

About this model

Seedream 5.0 Flash is the fast, cost-efficient model in ByteDance's Seedream 5.0 family for image generation and editing. It supports text-to-image and reference-guided editing with up to 10 input images, precise local edits targeted with point and bounding-box coordinates in the prompt, transparent-background output, and decomposition of an image into separate transparent layers. It outputs from 1K to 2K and suits high-volume workflows such as ad concepts, thumbnails, social visuals, and rapid design iteration.

  • text to image
  • image to image
  • op:edit
  • checkpoint