Guide
How to write dialogue prompts for Seedance and Kling
Five rules for AI video dialogue prompts that keep the exact words, the right speaker and better lip sync.
Why dialogue goes wrong in prompts
AI video models often change words, invent extra lines or give a line to the wrong character. Most of the time the prompt didn't make it clear what exactly should be said, and by whom.
Five rules for dialogue prompts
- Put the exact words in quotes. Quotes tell the model this is speech, not description.
- Say who speaks.
Jane: "Who sent this letter?"works better than a line floating on its own. - Keep it to one or two speakers per clip. More voices in a short clip means more mistakes.
- Put actions on their own line, in parentheses, in the order they happen.
- End with a clear instruction: "Say the lines exactly as written. No extra dialogue."
A prompt that works
Cinematic, realistic, 8 seconds.
(Jane turns and walks toward the window)
Jane: "Who sent this letter?"
Mr. Hale: "I found it in your coat."
Say the lines exactly as written. No extra dialogue.
Cut Maker's Prompts button builds this format for every cut, with the clip length and your style already filled in.
Lip sync tips
- Short sentences sync better than long ones.
- Avoid numbers and abbreviations; write them as words.
- Give the speaking character a clear, front-facing shot when the line matters.
Check your own scriptPaste it in. See which cuts are too long before you generate.
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