Prompt tool

FLUX 3 Video Prompt Generator

Build a prompt specifically structured for FLUX 3 Video. The tool applies the current model prompt profile while keeping your subject, action, camera and continuity requirements explicit.

AI model

Duration

Aspect ratio

Subject

What should happen?

Environment

Camera movement

Shot type

Lighting

Visual style

Audio / dialogue

Avoid / negative instructions

Generated prompt

Fill in the form and generate your prompt.

This tool prepares model-specific prompts for current AI video generators. It does not render video and does not require paid generation APIs.

Black Forest Labs prompting

How to prompt FLUX 3 Video

FLUX 3 video generation with synchronized audio, text-to-video, image/keyframe control and video continuation; the related FLUX Video Edit tool handles source-preserving edits.

Prompt strategy: Treat FLUX 3 video workflows as controlled transitions or source-preserving edits. For keyframes and first/last-frame generation, describe the motion path between anchors and explicitly lock identity, geometry and scene elements that must remain stable. For video editing, describe the requested delta from the source and state what must remain unchanged.

Capabilities

Text → video Image → video Native audio Keyframes First / last frame Video → video Extension Editing

Reference price snapshot

$0.17 / second · HD · text/image to video

Pricing source

Image → Video prompt Cost calculator Model guide

Production-ready structure

Prompt anatomy and pre-render checks

Use the working preset as a starting point, then simplify it around the exact shot you need. These checks are generated from this page's workflow preset and the current model profile.

Starter prompt blueprint

Subject: define one clear subject and the visible starting state.\nAction: describe one readable action that can complete inside the clip.\nCamera: use one motivated camera move and state where the shot should finish.\nContinuity: lock only the identity, geometry, wardrobe, environment or lighting details that must remain stable.
Model strategy: Treat FLUX 3 video workflows as controlled transitions or source-preserving edits. For keyframes and first/last-frame generation, describe the motion path between anchors and explicitly lock identity, geometry and scene elements that must remain stable. For video editing, describe the requested delta from the source and state what must remain unchanged.

Why this structure is useful

It starts with the visible subject and action before adding style language.
It keeps camera direction separate from what the subject is doing.
It gives continuity constraints a dedicated place instead of hiding them inside descriptive prose.

Check before rendering

Keep the visible action achievable within the selected clip duration.
Separate subject motion from camera motion so the generator does not have to infer which element should move.
Describe the final framing or state when the ending composition matters.
Model-specific structure: Treat FLUX 3 video workflows as controlled transitions or source-preserving edits. For keyframes and first/last-frame generation, describe the motion path between anchors and explicitly lock identity, geometry and scene elements that must remain stable. For video editing, describe the requested delta from the source and state what must remain unchanged.

Common failure patterns

Using broad adjectives in place of visible subject action, camera behavior and timing.
Overloading one generation with several unrelated beats or transitions.
Leaving continuity constraints implicit when identity or product geometry must remain stable.

Search intent