🎬 AI Video Tools
Video content is king, và AI makes it accessible cho everyone.
AI Video Tools Overview
| Tool | Best For | Starting Price |
|---|---|---|
| ✂️ Descript | Editing, transcription | Free / $12/mo |
| ✨ Runway | Creative effects, gen | $12/mo |
| 📝 Pictory | Blog → Video | $19/mo |
| 🎬 InVideo | Templates, quick | Free / $15/mo |
| 📱 CapCut | Social media, free | Free |
Descript
What It Does
- 📝 Transcription (auto)
- ✂️ Edit video by editing text
- 🗑️ Remove filler words
- 🎙️ Overdub (voice clone)
- 🖥️ Screen recording
Key Features
Video transcript: "Today we're going to um talk about uh marketing strategies for small businesses"
👆 Delete "um" và "uh" in text → Video automatically cuts those parts
Remove Filler Words:
- Upload video
- Wait for transcription
- Click "Remove filler words"
- Done - all "um", "uh", "like" removed
- 🎙️ Clone your voice
- ✍️ Type new text
- 🔊 AI speaks in your voice
- 🔧 Fix mistakes without re-recording
📋 Workflow
- 🎥 Record (in Descript hoặc upload)
- 📝 Auto-transcribe (wait 1-2 min)
- ✂️ Edit transcript = edit video
- 🗑️ Remove filler words
- 💬 Add captions
- 📤 Export
Runway
What It Does
- 🎬 Video generation từ text/image
- ✨ Creative video effects
- 🖼️ Background removal
- 🟢 Green screen
- 🧹 Inpainting (remove objects)
Key Features
"Aerial view of ocean waves, golden hour lighting, cinematic, slow motion, 4K quality"
→ Generates 4-second clip
Image to Video:
- Upload still image
- AI adds motion
- Great cho product shots
Gen-2 Effects:
- Change video style
- Add motion to photos
- Create transitions
✅ Use Cases
- B-roll footage
- Intro/outro clips
- Product animations
- Creative transitions
Pictory
What It Does
- 📝 Blog → Video automatically
- ✍️ Script → Video
- ✂️ Edit video với text
- 💬 Auto-captions
- 🖼️ Stock footage matching
📝 Blog to Video
- 📋 Paste blog URL or text
- 🤖 Pictory extracts key points
- 🎬 Matches stock footage
- 💬 Adds text overlays
- 🎙️ Generates voiceover (optional)
- 📤 Export video
✍️ Script to Video
- ✍️ Write/paste script
- 🎨 Choose template
- 🤖 AI matches visuals to script
- ✏️ Customize scenes
- 🏷️ Add branding
- 📤 Export
Workflow Examples
📺 YouTube Video Workflow
📝 SCRIPT - AI write script (ChatGPT) ↓ 🎥 RECORD - Screen record / talking head ↓ ✂️ EDIT - Descript (text-based editing) ↓ ✨ ENHANCE - Runway (B-roll, effects) ↓ 📤 EXPORT - Add captions, export
📱 Social Media Clips Workflow
📄 CONTENT - Blog post or long video ↓ 🤖 CONVERT - Pictory (auto-extract highlights) ↓ ✂️ EDIT - CapCut (trim, effects) ↓ 📱 RESIZE - Vertical for TikTok/Reels ↓ 📤 POST - Multiple platforms
📦 Product Video Workflow
📸 PHOTO - Product images ↓ 🎬 ANIMATE - Runway (add motion) ↓ ➕ COMBINE - CapCut/Descript ↓ 🎵 ADD - Music, text, CTA ↓ 📤 EXPORT
Quick Comparison
For Different Needs
| Need | Best Tool |
|---|---|
| 🎤 Edit talking head | Descript |
| ✨ Creative effects | Runway |
| 📝 Repurpose blog | Pictory |
| 📱 Quick social clips | CapCut |
| 🎨 Template-based | InVideo |
Free Options
- 📱 CapCut: Full-featured, free
- ✂️ Descript: Limited free tier
- 🎬 InVideo: Watermarked free
- 🎨 Canva Video: Basic free
Tips for Better AI Videos
✅ Quality Tips
✅ Start with good source material
✅ Use HD resolution
✅ Good lighting for talking head
✅ Clear audio
✅ Match music to mood
✅ Keep it concise
🎯 Engagement Tips
✅ Hook in first 3 seconds
✅ Add captions (85% watch muted)
✅ Use text overlays
✅ Change scenes every 3-5 seconds
✅ End with clear CTA
Bài Tập
- ✍️ Sign up Descript free
- 🎥 Record 2-minute video
- ✂️ Edit using transcript
- 🗑️ Remove filler words
- 💬 Add captions
- 📤 Export và share
Tiếp theo: Bài 8 - Script to Video với AI Avatars