ChatGPT への良い指示は、役割、実際の目的、文脈、制約、出力形式、修正ルールを渡すことです。画像制作では、生成前に production brief を作らせます。
TL;DR
- 用途、掲載先、固定したい要素から始めます。
- 最終 prompt の前に不足質問を出してもらいます。
- 構図、参考画像、文字ルール、比率、光、確認順を指定します。
- 弱い prompt を Vogue AI 用の安定したブロックに書き換えます。
- Vogue AI で生成し、最大の失敗だけを直します。
良い ChatGPT prompt は回答の契約です。役割、文脈、タスク、制約、例、反復ルールを含めます。
良い ChatGPT prompt は回答の契約です。役割、文脈、タスク、制約、例、反復ルールを含めます。
| Part | What to give ChatGPT | Image prompt example |
|---|---|---|
| Role | The expert lens it should use. | Act as an image creative director. |
| Context | The product, audience, channel, and goal. | This is for a product page and launch post. |
| Constraints | Ratio, reference, text policy, fixed details. | 4:5, no text, preserve product shape. |
| Example | The structure or style of answer you need. | Return one prompt plus one review checklist. |
| Iteration rule | How it should revise after a result. | Change only the largest visible failure. |
Workflow
流れは brief、質問、目標確認、構造化 prompt、生成、優先修正です。
| Step | ChatGPT instruction | Result you want |
|---|---|---|
| 1 | Ask clarifying questions before writing. | Missing context appears before the prompt. |
| 2 | Write one structured image prompt. | A paste-ready production brief. |
| 3 | Create channel variations. | Product, campaign, and social versions. |
| 4 | Diagnose the first generation. | One visible failure named clearly. |
| 5 | Revise one control. | A comparable second prompt. |
Copyable prompts
The public prompt blocks stay in English so they remain copyable in ChatGPT and Vogue AI.
- Act as an image creative director. I need a [channel] visual for [product or subject]. Ask me up to three missing questions first. Then write one production-ready prompt with subject, context, composition, lighting, style, reference-image instructions, aspect ratio, and a first-result review checklist.
- Rewrite this weak image prompt into a controlled Vogue AI prompt: "[paste weak prompt]". Keep the goal, remove vague filler, add concrete subject details, camera/framing, material or wardrobe, lighting, output rules, and one sentence explaining what to inspect after generation.
- Create three prompt variations for the same visual brief: one product-page version, one campaign-poster version, and one social-feed version. Keep the core subject stable, change only composition, channel ratio, background, and energy level.
- Use this uploaded image as reference. State exactly what the reference must control: [face identity/product shape/UI hierarchy/palette]. Then write a prompt that changes only [background, lighting, wardrobe, camera angle, or mood] while preserving those fixed details.
Reference-image handoff
- Say what the reference controls.
- Say what may change.
- Name what to inspect first after generation.
- Do not rely on style words to preserve identity.
Prompt variations
- Keep subject and fixed details stable.
- Change one channel variable at a time.
- Label each version by job, not by mood.
- Save the version that solved the visible failure.
Worked example
Weak request
Make a cool ad image for my jacket, cinematic and premium.
Better ChatGPT request
Act as an image creative director. Turn this into a Vogue AI GPT Image 2 prompt for a 4:5 launch visual. Ask only if product material, audience, or fixed logo placement is missing. The prompt must include subject, composition, lighting, reference-image handoff, no-text rule, and a review checklist.
Why it works
流れは brief、質問、目標確認、構造化 prompt、生成、優先修正です。
Mistakes and fixes
| Mistake | Fix first | Avoid |
|---|---|---|
| Prompt is vague | Add audience, channel, subject, and output format. | More impressive adjectives. |
| Result ignores identity | Add reference handoff and fixed details. | Changing style before identity is stable. |
| ChatGPT answer is too broad | Specify answer format and ask for one prompt. | Asking for a long brainstorm first. |
| Revision gets worse | Change one control only. | Rewriting the whole prompt after each result. |
Model choice
- Use GPT Image 2 for close instruction following and reference-sensitive image prompts.
- Use Nano Banana for fast visual branches after the brief is stable.
- Use Midjourney when mood and stylized exploration matter more than exact structure.
- Keep the ChatGPT brief stable before comparing models.
FAQ
ChatGPT への最適な指示方法は？
役割、文脈、タスク、制約、形式、修正ルールを渡します。
画像用 prompt はどう頼む？
subject、composition、lighting、style、reference handoff、ratio、確認項目を含めます。
ChatGPT に生成させるべき？
まず prompt を整理し、適した画像 workspace で生成します。
なぜ generic になる？
audience、channel、固定 detail、出力 rule、形式例が不足しています。
長い prompt が良い？
必要な制約が入る長さで十分です。曖昧な形容詞は増やしません。
悪い prompt を改善できる？
失敗内容を示し、一つの control だけ直すよう依頼します。
Vogue AI は何に使う？
モデル選択、参考画像、生成、比較に使います。