Luma Modify Video

Modify Video – Generative Video Editing Model

What is Modify Video?

Modify Video is Luma AI’s state-of-the-art generative video editing model designed for high-fidelity transformations without reshooting. By leveraging advanced pose, facial and lip-sync tracking, it maintains full-body motion consistency while enabling scene swaps, environment retexturing and style restyling. Creators and developers can generate multiple variants from a single clip, each preserving natural temporal flow and actor performance signals.

Key Features

• •Full-Body & Facial Tracking: Retains original actor movements, expressions and lip-sync for seamless edits.
• •Temporal Consistency: Keeps frame-to-frame continuity, minimizing flicker and jitter in output.
• •Multiple Modes:
  • adhere_1/adhere_2/adhere_3 – faithful, subtle edits
  • flex_1/flex_2/flex_3 – balanced transformations
  • reimagine_1/reimagine_2/reimagine_3 – creative overhauls
• •Prompt-Driven Styles: Use natural-language instructions (e.g., “make it vintage”) to guide restyling.
• •First-Frame Guidance: Supply a custom first frame image URL to anchor the visual style.
• •Native Resolution Support: Outputs at the same resolution as the source clip (MP4).

Best Use Cases

• •Scene Replacement: Swap backgrounds or entire sets in short clips under 30 seconds.
• •Creative Restyling: Transform modern footage into vintage, cinematic or genre-specific looks.
• •Lip-Sync Corrections: Fix dialogue sync issues while preserving actor performance.
• •Color Grading & Lighting Adjustments: Apply consistent color palettes and dynamic lighting effects.
• •Director-Grade Edits: Iterate on multiple stylistic variants quickly for pre-visualization and dailies.

Prompt Tips and Output Quality

1. •Start Simple: Begin with clear prompts like “add neon lights” or “cinematic teal-orange grade.”
2. •Adjust Mode:
   • •For minimal adjustments, choose adhere_1.
   • •For bold, artistic changes, use reimagine_1.
3. •Leverage First Frame: Supply a stylized image via first_frame_url to guide overall look.
4. •Clip Length: Keep source videos under 30 seconds for optimal processing speed.
5. •Iterate Variants: Run the same prompt with different modes to compare subtle vs. dramatic effects.

# Guide to Using the Modify Video Model Effectively

Modify Video by Luma AI empowers creators with high-fidelity generative edits—no reshoots required. This guide walks you through selecting the right parameters for common tasks, crafting prompts, and leveraging first-frame guidance to unlock the model’s full potential.

## 1. Core Parameters
- **video_url** (required): Short MP4 under 30 s.  
- **mode** (optional): Controls edit strength.
  - adhere_1/2/3: Faithful, subtle edits  
  - flex_1/2/3: Balanced transformations  
  - reimagine_1/2/3: Creative, bold overhauls  
- **prompt** (optional): Natural-language instruction (e.g., “make it look like film noir”).  
- **first_frame_url** (optional): Stylized reference image to anchor overall look.

## 2. Parameter Sets by Use Case

1. **Scene Replacement**  
   - mode: `adhere_2` (preserves actor motion)  
   - prompt: “swap background to a neon cityscape”  
   - first_frame_url: A clean plate of target environment  

2. **Creative Restyling**  
   - mode: `reimagine_1` or `reimagine_2`  
   - prompt: “vintage 1970s film grain and warm tones”  
   - first_frame_url: High-contrast retro photo  

3. **Lip-Sync Corrections**  
   - mode: `adhere_1`  
   - prompt: “correct lip movements to match audio”  
   - (No first_frame_url needed unless regrading style)  

4. **Color Grading & Lighting**  
   - mode: `flex_2`  
   - prompt: “cinematic teal-orange grade with soft contrast”  
   - first_frame_url: Frame with ideal color palette  

## 3. Crafting Effective Prompts
- **Be Specific**: “add neon lights” vs. “brighten scene”  
- **Combine Attributes**: “cinematic lighting, high contrast, film grain”  
- **Iterate**: Tweak adjectives (“soft”, “warm”, “dramatic”) to refine mood.

## 4. Leveraging First-Frame Guidance
Supplying a custom first frame anchors the model’s style across the clip. Use a reference image that exemplifies:
- Target color palette  
- Texture (grain, brushstrokes)  
- Lighting quality  

Example:
```json
"first_frame_url": "https://.../vintage_frame.png"

5. Iterating Variants

Run multiple passes with different modes to compare results:

• •adhere_3 vs. flex_1 for side-by-side subtle vs. moderate
• •flex_3 vs. reimagine_1 to push creative limits
• •Keep prompt constant to isolate mode impact

6. Best Practices

• •Keep clips under 30 s for faster turnaround.
• •Start with default adhere_1 for safety, then push toward flex/reimagine.
• •Monitor temporal consistency—use shorter test clips before full renders.
• •Save parameter presets for repeatable workflows.

By following these guidelines, you can tailor Modify Video to any editing scenario—whether you need precise continuity or an artistic revolution. Happy editing!

What video formats are supported?

MP4 clips (under 30 seconds) are recommended for reliable ingestion and native resolution outputs.

How do I choose between adhere, flex, and reimagine modes?

Use adhere modes for faithful edits, flex for moderate stylizations, and reimagine for full creative overhauls.

Can I preserve lip-sync accuracy?

Yes—Modify Video’s facial tracking maintains lip-sync motion even when retexturing environments.

Is a custom first frame required?

No. It’s optional but highly effective for guiding strong stylistic changes.

How do I guide specific edits?

Set the prompt parameter with natural-language instructions (e.g., “make it look like film noir”) to direct the AI.