Veo 3 Negative Prompt Optimiser with AI
Use AI to improve Veo 3 prompts by adding stronger exclusions, clearer tests and safer negative prompt wording.

Prompt

Review the Veo 3 prompt below and improve it before generation. Focus on exclusions, clarity, consistency and likely video errors. Keep the improved prompt practical and easy to test.

Veo 3 prompt:
[PASTE PROMPT]

Video goal:
[GOAL]

Known risks:
[RISKS]

Please check for:
- subtitles, captions and lower thirds
- text overlays, typography and readable words
- watermarks, fake logos and interface clutter
- distorted faces or hands
- duplicate people or objects
- inconsistent character details
- flickering objects
- chaotic camera movement
- unclear action
- missing sound or timing notes

Return:
- improved prompt
- stronger negative prompt
- what changed
- what to test first
- quick quality checklist

Example Input

Prompt: a short product video for an AI prompt library. Goal: show a person finding a useful prompt quickly. Risks: fake website text, messy screens, unreadable UI, too much camera movement and generic technology visuals.

Example Output

An improved Veo 3 prompt with stronger exclusions, clearer action, a better negative prompt, change notes, test priorities and a quality checklist.

Before you ask

Add the current prompt, video goal and known risks. Say which mistakes would make the output unusable.

Check before use

Check that the negative prompt removes likely errors while the positive prompt still gives clear action and style.

Common mistakes

Adding a long negative prompt but leaving the main scene vague, so the model knows what to avoid but not what to create.

Useful for:

Video

Works well with:

Veo 3, Google Flow, Gemini
Nova9 Tools

Need an idea or a better prompt?

Generate fresh ideas first, or go straight to the Prompt Builder if you already know what you want to create.

Open Ideas Builder Open Prompt Builder