How to prompt Veo 3.1 Quality
Google · Google Flow · Guidance v2, verified Sep 23, 2026 against 4 official sources
How to structure your prompt
One continuous shot written as a short scene. Open with the type of video and visual style (for example realistic, stop-motion, film noir on 35mm), then shot framing and camera movement, then the subject with specific appearance details, the action as it unfolds across the clip, the location and the lighting. Add sound last: requested dialogue with its speaker, then ambient sound and sound cues. Choose aspect ratio, length and number of outputs in Flow's video settings, not in the prompt.
Length and syntax
Up to 2,000 characters. Longer prompts are not better if the extra words do not change what appears on screen.
Dialogue: identify the speaker, then give the exact line in double quotation marks. Sound: describe ambient sound and sound cues in plain words, either inline or in a closing line that starts with 'Audio:'. No parameter flags of any kind.
Prompt skeleton
[Video type and visual style]. [Shot framing], [camera movement]. [Subject with specific appearance] [action unfolding across the clip] in [location]. [Lighting and atmosphere]. [Speaker] says: "[exact line]" (only if requested). Audio: [ambient sound, sound cues].
What it’s best at
- cinematic realism across a wide range of visual styles
- shot framing and camera movement
- native audio: dialogue, ambient sound and sound cues
- detailed, fast-paced action within a single clip
Known limitations
- ingredients/references, video-to-video editing and extend are not supported in the Quality variant
- clips are 4, 6 or 8 seconds; longer stories need multiple clips
- keeping a character consistent across clips relies on ingredients, which this variant does not support
Avoid in your prompt
- unrequested dialogue
- @character, @me, @Voice or ingredient references (not supported in the Quality variant)
- parameter flags from other models
- several unrelated scenes in one prompt
- unsupported duration or aspect ratio
Other video models
Summarised from the provider’s official documentation by Promptuned. Results vary by model version and settings. Veo 3.1 Quality is a trademark of its owner; Promptuned is not affiliated with Google.