Free tool
AI Image Prompt Builder
Describe your subject, tap a style, lighting and camera, and get ready-to-paste prompts for Midjourney, ChatGPT and Stable Diffusion, sized for the platform you're posting on.
style
lighting
camera
mood
Aspect ratio
Midjourney
Studio product shot of a matte black water bottle, on a mossy rock beside a mountain stream, golden hour, 85mm portrait, calm and premium mood, colour palette: orange and teal accents, high detail, sharp focus --ar 4:5 --style raw --v 6 --no text, watermark, extra logos, blurry
ChatGPT / DALL·E
Create a 4:5 image (Instagram/Facebook feed). Studio product shot of a matte black water bottle, on a mossy rock beside a mountain stream, golden hour, 85mm portrait, calm and premium mood, colour palette: orange and teal accents, high detail, sharp focus. Do not include: text, watermark, extra logos, blurry.
Stable Diffusion / Flux
Prompt: Studio product shot of a matte black water bottle, on a mossy rock beside a mountain stream, golden hour, 85mm portrait, calm and premium mood, colour palette: orange and teal accents, high detail, sharp focus Negative prompt: text, watermark, extra logos, blurry Aspect ratio: 4:5
4:5 frame: Instagram/Facebook feed.
The anatomy of a strong prompt
Image models respond best to a simple structure: style of subject, in a setting, with lighting and camera details, a mood, and a short list of things to avoid.
Tips for product and ad images
- Name the material and colour of the product ("matte black aluminium").
- Leave empty space in the scene if you plan to add a headline.
- Generate several variations and test them as ads; let the data pick the winner.
FAQs
What makes a good AI image prompt?
A clear subject, a setting, a style, lighting and camera details, plus what to avoid. Specific words beat long lists of adjectives.
Which aspect ratio should I use?
Use 4:5 for Instagram and Facebook feed ads, 9:16 for Reels, Stories and TikTok, 16:9 for YouTube and banners, and 1:1 when you're unsure.
Can I use AI images in ads?
Generally yes, if the tool's licence allows commercial use. Check that products, logos and claims are accurate before you publish.
Can you create brand images for us?
Yes. PlanB Digital trains AI on your products and style to create consistent campaign visuals and product shots.
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