AI 影片生成：JSON 提示詞真的比自然語言更好嗎？

隨著 Google Veo 3 熱度不斷提升，許多用戶開始轉向以 JSON 格式撰寫提示詞。有些人聲稱這種「結構化」方式比傳統的自然語言提示詞能產出更好的影片，引發了不少討論。那麼，什麼是 JSON？它真的比較優秀嗎？

什麼是 JSON？

JSON（JavaScript Object Notation）是一種輕量級的資料交換格式，使用鍵值對，例如：

{
  "scene": "Neo-Tokyo 2077, neon-lit skyscrapers with holographic billboards, flying cars zipping through rain-slicked streets. A cybernetic detective chases a rogue AI through an abandoned data hub.",
  "style": "Cyberpunk 2077 meets Blade Runner, high-contrast neon lighting, gritty textures, glitch effects",
  "length": "45 seconds",
  "resolution": "4K",
  "camera": {
    "shots": [
      {"type": "dolly", "direction": "forward", "duration": "8s", "focus": "detective's cybernetic eye"},
      {"type": "360_spin", "speed": "fast", "duration": "6s", "focus": "rogue AI's glowing core"},
      {"type": "split_screen", "layout": "left-right", "duration": "10s", "content": ["detective's HUD", "AI's data trail"]}
    ]
  },
  "special_effects": {
    "glitch": {
      "intensity": "0.7",
      "frequency": "high",
      "color": "#FF00FF"
    },
    "neon_glow": {
      "radius": "20px",
      "blend_mode": "screen"
    }
  },
  "sound": {
    "background_music": "industrial techno with heavy bass drops",
    "ambient_sound": "rain pattering, hologram hums, distant sirens",
    "voice_over": "A world where humans and code blur. Find the truth before it deletes you."
  }
}

{
  "scene": "A medieval castle under siege, with fireballs and arrows flying. The camera moves through the battlefield, allowing viewers to interact with objects.",
  "style": "Unreal Engine 5 realism, dynamic lighting, particle-rich combat. Inspired by The Witcher 3 and Game of Thrones.",
  "length": "90 seconds",
  "resolution": "8K",
  "camera": {
    "shots": [
      {"type": "first-person", "movement": "free", "duration": "30s"},
      {"type": "third-person", "distance": "10m", "angle": "45°", "duration": "30s"},
      {"type": "vr_360", "interactivity": ["pick-up sword", "block arrow"], "duration": "30s"}
    ]
  },
  "special_effects": {
    "physics_engine": {
      "gravity": "0.8",
      "collision": "true",
      "ragdoll": "soldiers"
    },
    "weather_system": {
      "type": "thunderstorm",
      "wind_speed": "20m/s",
      "rain_intensity": "high"
    }
  },
  "sound": {
    "background_music": "epic orchestral battle theme",
    "ambient_sound": "sword clashes, war cries, thunder rumbles",
    "interactive_sound": {
      "pick-up": "metal clang",
      "block": "shield impact"
    }
  }
}

 {
  "brand": "Chronos Elite",
  "core_message": "Time is an art---crafted, precise, timeless",
  "style": "Hugo Boss meets A24 cinematography: warm golden hour lighting, ultra-smooth tracking shots, 120fps slow motion for detail",
  "total_length": "60 seconds",
  "resolution": "8K HDR",
  "aspect_ratio": "2.39:1 (cinematic widescreen)",
  "color_grading": {
    "primary_tone": "deep navy + gold accents",
    "contrast": "high",
    "saturation": "muted (70%)"
  },
  "scenes": [
    {
      "scene_id": "01_craftsmanship",
      "duration": "15s",
      "content": "Master watchmaker's hands assembling a chronograph movement---close-ups of gears, sapphire crystal, and 18k gold case",
      "camera": {
        "shots": [
          {"type": "macro", "focus": "tweezers placing a micro-gear", "duration": "5s"},
          {"type": "tracking", "direction": "left-to-right", "subject": "watch face engraving", "speed": "ultra-slow"}
        ]
      },
      "brand_elements": ["logo embossed on case back", "signature blue dial"],
      "sound": {
        "ambient": "soft ticking (amplified 300%)",
        "music": "cello solo (slow, melodic)"
      }
    },
    {
      "scene_id": "02_lifestyle",
      "duration": "20s",
      "content": "Business executive in tailored suit checking the watch during a sunset meeting on a rooftop---city skyline in background",
      "camera": {
        "shots": [
          {"type": "over-shoulder", "focus": "watch on wrist as hand gestures", "duration": "8s"},
          {"type": "wide_angle", "zoom": "out", "focus": "executive with watch catching golden light"}
        ]
      },
      "brand_elements": ["watch strap matching suit texture", "date window reflecting sunset"],
      "sound": {
        "ambient": "distant city buzz",
        "music": "piano + violin (building to crescendo)"
      }
    },
    {
      "scene_id": "03_legacy",
      "duration": "15s",
      "content": "Vintage Chronos Elite watch from 1960s placed next to 2024 model---both glowing under museum-like lighting",
      "camera": {
        "shots": [
          {"type": "top-down", "rotate": "360°", "speed": "slow", "focus": "side-by-side watches"},
          {"type": "close-up", "zoom": "in", "focus": "matching serial number engraving"}
        ]
      },
      "brand_elements": ["heritage logo (1960s) vs modern logo", "tagline: 'Timeless since 1948'"],
      "sound": {
        "ambient": "silence (emphasizing legacy)",
        "music": "orchestral swells (emotional peak)"
      }
    },
    {
      "scene_id": "04_call_to_action",
      "duration": "10s",
      "content": "Watch displayed in luxury boutique window---text overlay: 'Craft Your Legacy'",
      "camera": {
        "shots": [
          {"type": "dolly", "direction": "forward", "focus": "watch in window", "end_on": "logo animation"}
        ]
      },
      "brand_elements": ["full logo on screen", "website URL: www.chronoselite.com"],
      "sound": {
        "voice_over": "Chronos Elite: Where time becomes art.",
        "music": "fade to soft piano chord"
      }
    }
  ],
  "api_integration": {
    "dynamic_fields": ["[current_year]", "[limited_edition_name]"],
    "output_format": "MP4 + XML project file (for post-editing)"
  }
}

JSON vs. 自然語言：哪個更強？

AI 模型本身並不「偏好」任何一種格式。無論你輸入自然語言還是 JSON，模型都會將其轉成 tokens 並以類似方式處理。如果你的提示詞清楚且有條理，自然語言同樣可以很有效。

然而，JSON 在某些特定場景確實表現更佳：

JSON 的優勢：

• 更高的控制力：你可以明確設定場景、風格、長度等，降低 AI 出現不希望的「自由發揮」。
• 適合複雜任務：多場景劇本或產品規格影片適合使用結構化格式。
• 輕鬆批次與模板重用：用同一 JSON 模板能高效生成多種變體。
• 無縫整合：開發者可程式化生成與解析 JSON，完美支援自動化流程。

JSON 的缺點：

• 學習門檻較高：許多用戶不熟悉 JSON 語法且可能感到畏懼。
• 限制創意：其剛性結構可能抑制 AI 的想像力。
• 編輯麻煩：調整 JSON 比起直接修自然語言句子更費工且容易出錯。

提示詞：未來感 AI 影片工作室、全息影像、虛擬演員、人類+AI 編輯、分鏡腳本、電影光影、4K 細節。

何時使用 JSON 或自然語言

• 若你面對複雜、多步驟任務──品牌影片、多場景腳本、或需要 API 驅動流程，選用 JSON。
• 若是創意、表達性或對話場景──繪圖提示詞、故事敘述、或像 ChatGPT 一樣的對話輸出，用自然語言更適合。

最後結論

JSON 不是魔法般的升級——它只是幫你更清楚地結構提示詞。當你需要一致性、內容可控或自動化時，它非常合適。但給創作者尋求彈性與即興發揮時，精心設計的自然語言往往更有力。

真正的關鍵不是格式──而是清晰度。不論你用 JSON 還是純文字，最重要的是明確表達你的想法。格式只是工具，真正重要的是你的創意與組織思維。