影片提示思考邏輯｜由想法到優化提示

步驟 1：意圖 → 模型（官方 Picking flow 原文）skills-catalog

### Video — auto-pick

1. **All advertising / commercial video (UGC, unboxing, TV spot, product showcase, branded ad)** → Marketing Studio. See `marketing-modes.md`.
2. **Everything else** → Seedance 2.5 — multi-shot, consistent identity, motion-heavy, image-to-video (`--mode omni_reference --start-image`), editing, extension, 4–30s. Do not downgrade because another model's schema looks simpler.
3. **The user asks for 4K** → Seedance 2.0 (Seedance 2.5 tops out at 1080p). Say why you switched.

### Video — only when asked

- **Cheaper or faster:** Kling 3.0 Turbo, Veo 3.1 Lite, or Seedance 1.5 Pro.
- **Named by the user:** Cinema Studio 4.0, Cinema Studio 3.0, Kling 3.0, Kling 2.6, Veo 3.1, Veo 3, Minimax Hailuo, Wan 2.7, Wan 2.6, Gemini Omni Flash, Grok Video 1.5, Grok Imagine (video), the earlier Cinema Studio Video variants, and the unprofiled models listed above.

### Video analysis — pick this default

1. **Evaluate a finished clip's hook, virality potential, attention, retention, or distraction risk** → Virality Predictor (`brain_activity`). It takes `--video`, needs no prompt, and returns a text score/report plus an Open report link rather than generated media.

flowchart TD
  A[影片需求] --> B{廣告/商業?<br>UGC/開箱/TV spot/產品展示}
  B -->|是| MS[Marketing Studio Video]
  B -->|否| K{需要 4K?}
  K -->|是| S20[Seedance 2.0]
  K -->|否| S25[Seedance 2.5（預設）]
  A --> X{用戶指名或要更平/更快?}
  X -->|更平/更快| CHEAP[Kling 3.0 Turbo / Veo 3.1 Lite / Seedance 1.5 Pro]
  X -->|指名| NAMED[Cinema Studio 4.0、Kling 3.0、Veo 3.1、Gemini Omni Flash 等]
  A --> V{分析已完成的片?}
  V -->|是| VP[Virality Predictor]

步驟 2：寫分鏡式提示

按官方 6 步（見 通用原則）：場景與演員 → 走位 → 相機 → 分拍動作 → 物理與光線 → 聲音與收尾。blog:ai-video-prompt-mistakes

步驟 3：參數

• Seedance 2.5：4–30 秒，最高 1080p；需要 4K 改用 Seedance 2.0 並說明原因。skills-catalog
• Seedance 2.5 Preview Mode：先出 480p 草稿比較 take，再以 1080p 定稿。x:s25-preview-mode
• 只用平順單向運鏡；片段要短，以首尾幀串接。blog:how-to-avoid-distortions-ai-videos
• 不要因為其他模型的 schema 看似簡單而降級。skills-catalog

步驟 4：檢查與迭代

flowchart LR
  P[480p 預覽 / 短片測試] --> R{符合 brief?}
  R -->|否| F[只改一個變數：動作/相機/光線]
  F --> P
  R -->|是| FIN[定稿 1080p/4K]
  FIN --> VP[可選：Virality Predictor 評 hook]

本頁來源（存取日期 2026-10-08）