Writing a good brief
The brief decides most of the quality. The model can see your photo already, so tell it what should happen, not just what's there.
What a good brief covers
| Part | Weak | Strong |
|---|---|---|
| The idea | "Show the product" | "She realises she hasn't needed a wallet all week" |
| What must not change | nothing | "Keep the tan leather and the brass snap exactly as in the photo" |
| The shots, in order | "Nice shots" | "0-2s phone comes out of a pocket, 2-5s thumb opens the card slot" |
| The look | "Cinematic" | "Handheld, morning daylight, real skin texture" |
| The words | "Talk about the benefits" | "I stopped carrying a wallet in March." |
Write with AI
Write with AI studies your photo, your brand voice and the persona you picked, and writes a complete brief paced to the length you chose. Treat it as a strong first draft and edit it.
It's free, with three limits so it stays fast for everyone:
- Your account needs enough credits for at least one video on the version you picked. The AI writes briefs for videos you can actually make.
- Each photo gets 10 briefs a day. If you've used them, edit your favourite by hand or upload another photo.
- There's a daily limit per account across all AI writing.
Writing or editing a brief yourself is never limited.
Test three angles at once
3 angles writes three different briefs from the same photo: a problem and solution, a social proof moment and a before and after. Make all three and run them side by side. It uses three of the photo's ten daily briefs.
Add product details (optional)
Open Product context and add the product's name or its page on your store. The AI then works from your real product copy instead of guessing from the photo. For the brand as a whole, set up Brand voice once.
Character limits
Seedance 2.0 reads up to 2,000 characters, Seedance 2.5 up to 5,000. The counter under the brief shows your limit. If you switch to a version with a smaller limit, a long brief is trimmed at the end of a sentence and you're told.
Language and tone
- Pick a language chip to have the creator speak in that language. Choose None for music only.
- The tone slider makes one brief more serious or more playful. The middle is your normal brand voice.
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