ByteDance

bytedance/seedream-5-lite/text-to-image

文生图
更多设置(2 项)
生成结果演示示例登录后试用

$0.035 / 张 · 约 28 张/$1

Seedream 5.0 Lite 文生图示例

价格

单价 $0.035 / 张

按实际生成张数结算。

约 28 张/$1

每次请求会先临时冻结 $0.035,按实际用量扣费,通常在一分钟内完成:多余部分退回,超出部分从余额扣除,余额可能因此变为负数;余额为负时新请求暂停,充值后先抵扣欠款。

生成失败不收费。

API 接入

用这个模型 ID 提交生成请求。

POST/v1/model-tasks
bytedance/seedream-5-lite/text-to-image
请求体
{
  "model": "bytedance/seedream-5-lite/text-to-image",
  "input": {
    "prompt": "Design a premium editorial poster for an imaginary botanical exhibition. A luminous apricot glass butterfly rests on a folded ivory porcelain fan, surrounded by three delicate fern fronds and a small polished pebble. Pale sage green background, warm side lighting, realistic glass caustics, crisp porcelain ridges, elegant negative space. At the top, render the exact large headline \"SMALL WONDERS\" in beautifully spaced dark green serif letters. Below it, render the exact small subtitle \"A STUDY OF LIGHT AND NATURE\". Balanced vertical composition, refined art direction, highly detailed materials. No other text, logos, signatures or watermarks.",
    "image_size": "auto_2K",
    "max_images": 1,
    "num_images": 1
  }
}

输入 Schema

参数类型是否必填默认值
promptstring必填—
image_sizeobject | string可选auto_2K
max_imagesinteger可选1
num_imagesinteger可选1

返回结果

接口会返回生成结果,或返回可轮询的异步任务;具体响应方式与结果字段见下方示例和 Schema。

异步任务
提交响应
HTTP 202
/v1/model-tasksapplication/json
{
  "id": "task_example",
  "model": "bytedance/seedream-5-lite/text-to-image",
  "status": "queued"
}
状态响应
HTTP 200
/v1/model-tasks/{id}application/json
{
  "id": "task_example",
  "model": "bytedance/seedream-5-lite/text-to-image",
  "status": "completed",
  "output": {
    "images": [
      {
        "url": "https://api.musespan.com/v1/model-tasks/task_example/artifacts/0"
      }
    ]
  }
}
文件下载
HTTP 200
/v1/model-tasks/{id}/artifacts/{index}生成的图片(如 image/png)

任务完成后,output 里的文件地址就指向此接口,序号从 0 开始。下载时要带上同一个 API Key(Authorization 请求头)。

错误响应
HTTP 400
/v1/model-tasksapplication/json
{
  "error": {
    "code": "invalid_input",
    "message": "The input does not match this model's input schema. Check the model's API documentation.",
    "type": "invalid_request_error"
  }
}

调用示例

异步任务提交后返回任务 ID,轮询至 status 为 completed 后,按返回结果获取生成内容。API Key 在控制台获取。

# Use a new directory for each new generation. Rerunning here continues this task.
set -eu
test -s model-task-id.txt || python3 -c "import uuid; print(uuid.uuid4())" > model-task-id.txt
REQUEST_ID=$(cat model-task-id.txt)
# Idempotent: resending the same bytes with the same ID never charges twice.
curl --fail-with-body --retry 3 --retry-connrefused --request POST 'https://api.musespan.com/v1/model-tasks' \
  --header "Authorization: Bearer $MUSESPAN_API_KEY" \
  --header "X-Request-Id: $REQUEST_ID" \
  --header "Content-Type: application/json" \
  --data '{"model":"bytedance/seedream-5-lite/text-to-image","input":{"prompt":"Design a premium editorial poster for an imaginary botanical exhibition. A luminous apricot glass butterfly rests on a folded ivory porcelain fan, surrounded by three delicate fern fronds and a small polished pebble. Pale sage green background, warm side lighting, realistic glass caustics, crisp porcelain ridges, elegant negative space. At the top, render the exact large headline \"SMALL WONDERS\" in beautifully spaced dark green serif letters. Below it, render the exact small subtitle \"A STUDY OF LIGHT AND NATURE\". Balanced vertical composition, refined art direction, highly detailed materials. No other text, logos, signatures or watermarks.","image_size":"auto_2K","max_images":1,"num_images":1}}'
# Poll every 5 seconds for up to 25 minutes until status is completed or failed.
# Still queued (with queue_position) 5 minutes after submission: failed with queue_timeout, not charged.
# No result 15 minutes after acceptance (or no confirmation 15 minutes after submission): failed with generation_timeout, not charged.
# Any failure is final: generate again in a new directory (a new X-Request-Id).
# A 404 means the POST did not arrive: rerun this script to resend it with the same ID.
curl --fail-with-body 'https://api.musespan.com/v1/model-tasks/'"$REQUEST_ID"'' --header "Authorization: Bearer $MUSESPAN_API_KEY"

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