Reference & editing prompt tool

AI Video Extension Prompt Generator

An extension prompt should begin from the exact visible end state and add only the next action beat.

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.

Use-case playbook

How to build this type of AI video prompt

An extension prompt should begin from the exact visible end state and add only the next action beat.

State which visual properties are locked before describing what changes.
Separate subject motion, camera motion and environment changes into distinct instructions.
End with a stable final state so the output is easier to edit or continue.

Next steps

Turn the prompt into a workflow

Compare across models Expand into multiple scenes Estimate production cost Reference workflow guides

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: Continue the same subject exactly from the previous last frame.
Action: Continue the existing action for one new beat without resetting pose or direction.
Environment: Keep the same environment, weather and lighting unless the story intentionally transitions.
Camera: Continue the existing camera trajectory or settle before introducing a new move.
Shot: Continuation shot matched to the previous ending.
Lighting: Preserve exposure and light direction.
Style: Seamless clip extension.
Audio: Continue ambience/audio bed when supported.
Avoid: No identity drift, no unintended subject replacement, no geometry warping, no environment reset, no random camera jump, no flicker, no unwanted text. No teleportation, no pose reset, no unexplained scene change..

Why this structure is useful

The subject is explicit, so identity or product geometry has a clear anchor.
The action is written as a visible event rather than an abstract creative goal.
Framing and camera behavior are separated from subject motion.
Visual treatment is added after the physical shot logic, reducing conflicting instructions.
Audio direction is isolated as its own layer so it can be kept, removed or adapted per model.

Check before rendering

State which visual properties are locked before describing what changes.
Separate subject motion, camera motion and environment changes into distinct instructions.
End with a stable final state so the output is easier to edit or continue.
Model-specific structure: Use coherent natural-language direction with explicit temporal flow from start state to end state. Describe subject action, camera behavior, lighting and environmental motion. When relevant, integrate dialogue, ambience and sound effects because this model family supports native audiovisual generation. Avoid conflicting camera moves and keep continuity physically plausible.

Common failure patterns

Re-describing the reference in a way that contradicts the visible starting image.
Failing to distinguish what must stay locked from what is allowed to transform.
Requesting abrupt identity, geometry or environment changes without an intermediate transition.

Search intent

What this page is meant to answer

AI Video Extension Prompt Generator is a workflow-first tool: use it when this creative or production task matters more than the model. The preset starts with the task intent and lets you choose the target model afterward.

Workflow-first prompt structureModel can be changed in the toolA reusable brief before model-specific adaptation

Scope boundary: This is not a model-specific landing page. Choose a model-specific prompt page when you already know exactly which generator you will use.