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    快速结论

    • flux-2-pro supports Text-to-Video, Image-to-Video, R2V, and Video Edit in one workflow.
    • Use this model guide page to validate parameters with minimal request/response examples.
    • Stabilize prompts here first, then move to production API integration.

    关键参数

    • model | string | 必填 | flux-2-pro | - | Model identifier. Use the fixed value `flux-2-pro`.
    • prompt | string | 必填 | - | - | Main instruction describing the subject, action, scene, and style.
    • aspect_ratio | string | 可选 | 16:9 | 16:9 | 9:16 | 1:1 | Video aspect ratio. Defaults to `16:9`; supports `16:9 | 9:16 | 1:1`.
    • duration | integer | 可选 | 6 | 5 | 10 | 15 | 20 | Output duration in seconds. Defaults to `6`; supports `5 | 10 | 15 | 20`.
    • resolution | string | 可选 | 720P | 720P | Output resolution. Defaults to `720P`; supports `720P`.

    常见错误

    • 400 invalid_request_error: 触发=Request payload misses required fields or has invalid field types.; 修复=Validate model, mode, and input schema before request.; 重试=Retry only after fixing payload; avoid blind retries.
    • 401 authentication_error: 触发=Missing Authorization header or invalid API key.; 修复=Verify Bearer token format and API key scope.; 重试=Retry after auth fix; rotate key if repeated failures continue.
    • 429 rate_limit_exceeded: 触发=Request rate, concurrency, or current quota hits upstream rate limiting.; 修复=Apply exponential backoff first, then review request rate, concurrency, and quota usage.; 重试=Use exponential backoff (e.g., 1s/2s/4s) with jitter; if it persists, reduce submission pressure.
    • 500 internal_error: 触发=Transient upstream error or internal processing failure.; 修复=Capture request id and trigger retry workflow.; 重试=Retry 2-3 times with short delays; escalate if persistent.

    flux-2-pro

    flux-2-pro is provided by Black Forest Labs (FLUX) with Image / Video capabilities. Current pricing reference: 5 積分 /request. This page helps you understand positioning, parameters, and production-ready use cases before integration.

    模型類型：
    價格： 5 積分 /request
    體驗區相關能力READMEAPI
    1

    描述你的圖片

    參考圖

    描述你想生成的圖片。44 / 1200

    進階選項

    範例參數
    2

    你的生成結果

    圖片結果會顯示在這裡

    登入後可直接提交生成任務。

    查看 API 文件取得 API Key

    生成需要一些時間，請稍等您可以離開此頁面，[ 任務日誌 ] 可直接檢查生成的內容

    請求預覽

    {
  "model": "flux-2-pro",
  "prompt": "使用 flux-2-pro 生成一张高质感产品广告图，主体清晰，光线自然，适合社媒投放。",
  "size": "1:1",
  "n": 1,
  "metadata": {
    "resolution": "1K",
    "orientation": "square"
  }
}

    透明計價

    flux-2-pro pricing

    Image usage is billed according to the current request and resolution rules. Final billing follows the current account quote.

    儲值積分
    5 積分 /request

    為什麼選擇 ToAPIs

    Why call flux-2-pro through ToAPIs?

    Keep image generation, API keys, billing, and usage management in one workflow.

    Unified multi-mode testing

    Switch across Text-to-Video, Image-to-Video, R2V, and Video Edit in one place.

    Parameter-first validation

    Iterate quickly on prompts, durations, and references before production rollout.

    Production-ready handoff

    Minimal request/response structure helps you move stable configs into API workflows.

    Connect in three steps

    Create a key, send an image request, and review the generated result.

    1. 1

      Step 1

      Fill prompt and key parameters.

    2. 2

      Step 2

      Run, inspect output structure, then iterate.

    3. 3

      Step 3

      Move stable settings into production API.

    When to use flux-2-pro

    Use case 1

    When you need fast iteration across multiple generation modes.

    Use case 2

    When you need to validate parameters and error handling before integration.

    常見問題

    flux-2-pro FAQ

    When should I use flux-2-pro?

    Use it to validate video concepts quickly, compare mode behavior, and converge prompts before API rollout.

    How do I choose Text-to-Video vs Image-to-Video?

    Use Text-to-Video when you only have instructions; use Image-to-Video when you already have key frames or composition.

    What is the difference between R2V and Video Edit?

    R2V focuses on reference-guided generation, while Video Edit focuses on modifying existing video assets.

    图像视频模型报错：invalid apitype: -1

    这类错误通常说明接口走错了。图像和视频模型一般不走 chat 接口，而是按对应文档发起 HTTP 任务请求，并通过任务状态接口轮询结果。排查时建议先看用户的实际请求代码、请求地址和请求体。

    用户进行生成图片/视频的任务时出现任务失败，但是扣款

    先让用户提供任务日志或截图，重点看是否出现了输入或输出 token 统计。如果有这类 token 记录，大概率是用户把图片/视频模型走成了 chat 接口；这不是正确用法。图片和视频模型通常是异步任务接口，需要通过 HTTP 请求先提交任务，再拿到任务 ID 轮询状态，详细以对应文档为准。

    flux-2-pro API

    Start building with flux-2-pro

    Test an image request here, then continue in the dashboard or API documentation.

    Start for freeView API Docs

    Try flux-2-pro with one ToAPIs key.

    Use one account and API surface for image generation workflows.

    Sign up to get free credits
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