專為香港 Marketers 整理嘅實戰指南
唔知點開始寫 Prompt？呢篇指南會分享我哋嘅經驗同 OpenAI 官方建議，幫你快速上手。
| 用途 | 建議尺寸 | Quality | 小貼士 |
|---|---|---|---|
| 社交媒體貼文 | 1080×1080 或 1080×1350 | medium | 加入品牌色和 CTA |
| 資訊圖表 | 1080×1350 或 1080×1920 | high | 文字多時用 high quality |
| 產品攝影 | 1024×1024 或 1024×1536 | medium | 加入 'photorealistic' |
| 廣告橫幅 | 1200×628 或 1080×1080 | medium | CTA 按鈕要高對比 |
| 海報傳單 | 1080×1920 或 1240×1754 | high | 文字層次要清晰 |
| Logo 設計 | 1024×1024 或 1536×1024 | high | 要求 vector-like、flat |
| 簡報封面 | 1920×1080 | medium | 16:9 比例、非對稱佈局 |
| 電郵 Header | 600×300 | medium | 中心 80% 安全區域 |
以下係一個完整嘅 Prompt 範例，結合咗以上所有技巧。你可以直接複製去 ChatGPT 試用，或者用我哋嘅模板庫自動生成。
Create a professional Instagram product promotion post in 1080x1080 square format. Scene and background: a soft pink and gold gradient background with diffused studio lighting and a subtle marble texture surface. Subject: a photorealistic hero shot of a luxury moisturizer jar labeled "玫瑰精華保濕面霜", placed slightly off-center using the rule of thirds. The jar has a frosted glass body with a rose-gold cap. Render accurate glass reflections, subtle light refractions, and a gentle shadow beneath. Layout and composition: - Top-left: "HK Beauty Lab" logo in small, elegant sans-serif typography - Top-right: an eye-catching promotional badge reading "限時 8 折" in bold white text on a pink badge - Center: the product hero shot occupying roughly 60% of the frame - Bottom: "玫瑰精華保濕面霜" in refined serif typography, with a "SHOP NOW" CTA button in rose-gold Style: clean minimal, high-end commercial photography aesthetic with soft shadows and professional studio lighting. Text requirements: All text "限時 8 折", "HK Beauty Lab", and "玫瑰精華保濕面霜" must be rendered exactly as written in quotes. Chinese text in Traditional Chinese with pixel-perfect clarity. Use medium quality for crisp text. Constraints: No watermarks, no extra text beyond what is specified, no generic clip art. The image should feel scroll-stopping and aspirational.
本指南內容參考自 OpenAI GPT Image Generation Models Prompting Guide（2026 年 4 月 21 日）