AI Video Generation
Creating Video from Text and Images
Generate video without cameras. Describe what you want, AI creates it.
How AI Video Generation Works
Text-to-Video
Write a prompt describing a scene. AI generates video matching the description.
Image-to-Video
Provide a still image. AI animates it into video.
Video-to-Video
Input existing video. AI transforms style or adds elements.
Major AI Video Tools
Runway
Industry leader for creative AI video.
Features:
- Gen-3: Text and image to video
- Motion brush for controlling movement
- Video-to-video style transfer
Best for: Creative projects, high quality
Pika
Fast, accessible video generation.
Features:
- Text-to-video
- Image-to-video
- Modify regions of existing video
Best for: Quick generation, iteration
Sora (OpenAI)
High-quality, longer-form generation.
Features:
- Complex scene understanding
- Multiple characters and actions
- Consistent video over longer duration
Best for: Cinematic quality, complex scenes
Kling, Luma, Minimax
Alternative platforms with different strengths.
Try multiple: Each has different aesthetics and capabilities.
HeyGen / Synthesia
AI avatar video generation.
Features:
- Realistic human presenters
- Text-to-speech synced to avatar
- Multiple languages
Best for: Training videos, presentations, localization
Writing Effective Prompts
Be Specific
Weak: "A dog running" Better: "A golden retriever puppy running through a sunlit meadow, slow motion, cinematic"
Include Key Elements
Subject: What's in the scene Action: What's happening Setting: Where it takes place Style: Visual treatment (cinematic, documentary, animated) Camera: Movement, angle, framing Lighting: Time of day, mood
Example Prompts
Product showcase:
A sleek smartphone rotating slowly on a white surface,
soft studio lighting, product photography style,
subtle reflections, 4K quality
Nature scene:
Aerial drone shot flying over a misty mountain forest
at sunrise, golden light filtering through trees,
cinematic color grading, smooth motion
Abstract/Creative:
Colorful paint splashing in slow motion against
black background, vibrant reds and blues mixing,
high-speed photography style
Best Practices
Start Simple
Complex prompts with many elements often fail. Build up gradually.
Generate Variations
Create multiple options. Pick the best.
Iterate
Refine your prompt based on what works.
Combine with Real Footage
AI video often works best as B-roll or specific shots, not entire videos.
Check Quality
Review for artifacts, inconsistencies, weird movements.
Limitations
Duration
Most tools generate 4-10 second clips. Longer requires stitching.
Consistency
Same prompt produces different results. Getting matching shots is challenging.
Fine Control
You can't precisely control every element. AI interprets prompts.
Quality Variation
Some generations are great, some are unusable. Generate multiple.
Artifacts
AI video can have visual glitches, especially with hands, text, faces.
Use Cases
B-Roll
Supporting footage to cover cuts or illustrate concepts.
Visualizing Abstract Concepts
Things that would be impossible or expensive to film.
Product Mockups
Showing products in various contexts.
Mood/Atmosphere
Establishing shots, transitions, ambiance.
When You Can't Film
Remote topics, historical scenes, dangerous situations.
Ethical Considerations
Disclosure
Consider disclosing AI-generated content when relevant.
Deepfakes
Never create deceptive video of real people.
Copyright
Understand terms of service. Who owns generated video?
Authenticity
Don't pass off AI video as real footage when that distinction matters.
What's Next
Putting it all together in the edit.
Next chapter: AI editing tools.