Restyle the scene
Move a clip from an office to a moonlit street or a minimal studio while keeping the performance and camera movement.
Video editing · Workflow guide
AI Video Editor: Edit Clips With Text Prompts
Text-based video editing is not a re-generation button. It works best when you name the layer to change and the layers to protect. The model needs a clear contract: what stays identical, what changes once, and what must never appear.
- Independent guide
- No sign-in here
- Prompt runs locally
- Generator opens flashomni.ai
Quick answer
Upload a clip, state what must stay identical (identity, motion, timing, camera), then describe one change (object, background, light, or style). Review the result before stacking another edit. If the clip has fast motion, simplify the change or cut around it.
At a glance
Best input
A short clip with stable motion and a clear subject
Best output
The same performance with one controlled change
Video models
Gemini Omni Flash, Kling 3.0, Veo 3.1, Sora 2
Next step
Export the best take and edit sound separately
Build your prompt
Pick a preset, adjust the subject and scene, then copy the prompt. The optional photo preview stays in your browser: this page does not upload it. The generator is a separate site with its own terms and pricing.
1. Choose a starting point
No file selected
2. Copy the prompt
Copying the prompt does not create an account or charge credits. The hosted generator opens a separate site with its own terms and pricing.
What you can make
Swap a background
Replace a distracting room with a clean set. Protect hair edges and the way the subject meets the new background.
Relight a shot
Change the time of day or the key direction. Useful when the performance is right but the light is flat.
Change one object
Turn a plain cup into a branded product or replace a prop. Keep the hand interaction and timing intact.
How it works
Start with stable motion
Fast action, crowds, and quick camera moves give the model too many things to preserve. Use a clip with a clear subject and steady framing.
Write the protect list
Name identity, wardrobe, timing, camera movement, and the number of people. These are the constraints that keep the edit from becoming a remake.
Request one change
One layer per pass: background, light, object, or style. If the result is close, refine it with a follow-up instead of starting over.
Check continuity
Watch hands, hair, shadows, and the contact point between the subject and the new scene. Then check the first and last frame.
Video edit formula
Use this structure as a checklist. Replace the bracketed fields, keep the protection lines, and remove anything that does not apply to your shot.
Use the uploaded clip as the exact motion, framing, and timing reference.
Keep: [identity, wardrobe, performance, camera movement, number of people].
Edit request: [one change].
Add atmosphere: [light, weather, set detail].
Camera: [preserve or adjust one thing].
Do not change identity, add characters, or introduce sudden cuts.
No text, no logos, no watermarks.- Say “exact motion and timing reference” so the model does not reinterpret the performance.
- One change per pass. Stacking background, wardrobe, and light makes failures impossible to diagnose.
- Preserve the number of people. Group clips often gain an extra background figure.
- If the clip is shaky, fix stabilization first. Editing a shaky clip usually makes it worse.
Model notes
These notes describe where each model tends to fit. They are not a ranking. Model availability changes by provider: WaveSpeed, SeeAPI, FAL, Replicate, and Kie all serve image and video models in this class. The hosted generator shows the available models and credit cost before you run a job.
- WaveSpeed
- SeeAPI
- FAL
- Replicate
- Kie
| Model | Best fit |
|---|---|
| Gemini Omni Flash | Multi-turn conversational editing when the first result needs several small refinements. |
| Kling 3.0 | Motion-heavy clips where the performance and camera move must survive the edit. |
| Veo 3.1 | Scene-level changes with coherent lighting and detailed environments. |
| Sora 2 | Atmosphere and physically believable object interaction. |
Three prompts you can adapt
Move a talking-head clip into a studio
The performance is the asset. Protect timing and mouth movement, then change the room.
Use the uploaded clip as the exact motion, framing, and timing reference. Keep the person's identity, wardrobe, performance, and camera movement. Replace the background with a minimal charcoal studio and a soft floor shadow. Preserve the contact shadow and hair edges. Do not change the face, mouth movement, or timing. No text, no logos, no watermarks.Relight a flat product demo
A lighting edit can rescue a usable demo without regenerating the hand interaction.
Use the uploaded clip as the exact motion and timing reference. Keep the product, hand position, and camera movement. Relight the shot with warm low sun from camera left and a cool ambient fill. Add a soft rim light on the product edge. Do not change the label, shape, or hand interaction. No text, no logos, no watermarks.Change the prop, keep the hand
Object swaps fail at the fingers. Protect the hand shape and the motion path explicitly.
Use the uploaded clip as the exact motion and timing reference. Replace the object in the person's hand with a matte black cylindrical product. Keep the hand shape, finger positions, wrist angle, and motion path unchanged. Keep the original room and light. Do not add text or logos. No watermarks.Common mistakes
“Make it cinematic”
This gives the model permission to change framing, color, motion, and performance. Name the specific layer.
Changing identity
If identity is not protected, a background edit can quietly become a face replacement. Put preservation first.
Editing fast motion
Fast action has too little information between frames. Simplify the change or use a calmer take.
Stacking edits
Each pass adds drift. Finish one change, export it, and start the next pass from the exported clip.
FAQ
Does AI video editing keep the original timing?
It can when you name the clip as the exact motion and timing reference and avoid instructions that imply a new performance. Fast or complex motion is harder to preserve.
Can I edit a phone video?
Yes, if the subject is clear and the clip is stable. Use a short segment, protect identity, and change one layer at a time.
What happens to the audio?
Video edits usually focus on the image. Keep the original audio in your editor, or replace it with music or voice-over after exporting.
How many edits can I stack?
As few as possible. Each pass can introduce drift. Export after a clean change and start the next pass from that export.
Is AI video editing destructive?
Treat every generation as a new take. Keep the original clip and export each version so you can roll back.
Which model is best for video editing?
Use a model that supports video references and multi-turn editing. Gemini Omni Flash is built around conversational edits; the generator shows which models are available for your clip.
Related workflows
Turn the prompt into a clip
Open the hosted generator, paste the prompt, and run one short test. Keep the first generation small; a clean five-second clip is easier to judge than a long one.
Flash Omni is an independent guide and is not affiliated with Google. The hosted generator is a separate product with its own terms and pricing.