How to write a good AI poster prompt
Many people rewrite the same prompt ten times. The problem is rarely length: it is structure. Here is the order that gives the best results.
1. Say what we see
Start with the subject and what it is doing: “the cream bottle, alone in the center”. One concrete sentence beats vague adjectives like “beautiful” or “professional”, which the AI interprets its own way.
2. Describe the light and the background
Light changes everything: “soft glow behind the product”, “dark gradient background”, “late-afternoon light”. Pick one mood; mixing three styles gives an average result.
3. Plan room for the text
If the poster needs a title or a price, ask for “free space at the top” or “a plain band at the bottom”. Add the text yourself afterwards: AI still often gets letters wrong, so it is better not to ask it for any.
4. Say what must not be touched
“Keep the product perfectly identical: shape, colors, label. Do not add any text or price.” This sentence stops the AI from reinventing your product. SlashAtlas commands already include it.
5. Iterate with one correction at a time
- One request = one change: “lighter background”, then “softer shadow”.
- Keep the version that works and fix it instead of starting over.
- Note the wordings that work so you can reuse them.
Saving time
A ready-made command combines these five points. You copy it, paste it with your photo, and the only thing left to write is the product name. That is the idea behind SlashAtlas.