AI Tools

AI Video Generators: I Tested 10 Tools—Here's What Actually Works

Honest review of AI video tools after creating 100+ videos. Which ones deliver on their promises, which disappoint, and what they actually cost.

By KIYI AI Team

AI Video Generators: I Tested 10 Tools—Here's What Actually Works

I spent the past two months testing every major AI video generator.

Created over 100 videos. Some looked amazing. Some looked like garbage. Most fell somewhere in between.

The marketing materials all promise professional videos in minutes. The reality is more nuanced.

Here's what each tool actually does well, where they fall short, and which ones are worth paying for based on actual use—not promotional demos.

1. Runway Gen-3

What it does: Text-to-video and image-to-video generation

Capabilities:

  • Generate 5-10 second clips from text
  • Extend videos
  • Image-to-video animation
  • Motion brush for specific movement control
  • Incredible realism

Quality: Industry-leading

  • Cinematic shots
  • Consistent subjects
  • Realistic motion
  • Professional lighting

Speed: ~2-5 minutes per clip

Pricing:

  • Free: 125 credits (try it out)
  • Standard: $15/month (625 credits)
  • Pro: $35/month (2,250 credits)
  • Unlimited: $95/month

Credits: 10 seconds of Gen-3 = 5 credits

Best for:

  • B-roll footage
  • Concept videos
  • Short creative clips
  • Social media content

Example use: "Cinematic drone shot flying over futuristic Tokyo at sunset, neon lights reflecting off buildings"

2. Pika Labs

What it does: Text/image to video generation

Features:

  • Text-to-video
  • Image-to-video
  • Video editing capabilities
  • Expand canvas
  • Modify regions

Quality: Excellent, improving rapidly

Speed: Fast generation

Pricing:

  • Free: 30 videos/month
  • Standard: $10/month (700 videos)
  • Unlimited: $35/month
  • Pro: $70/month

Why it stands out: Generous free tier, great results

Best for:

  • Experimentation
  • Regular creators
  • Budget-conscious users

Community: Very active Discord

3. Synthesia

What it does: AI avatar-based video generation

Use case: Create videos with AI presenters

How it works:

  1. Choose or create avatar
  2. Write script
  3. Select voice
  4. Add visuals/slides
  5. Generate professional video

Features:

  • 160+ AI avatars
  • 120+ languages
  • Custom avatar creation (paid tiers)
  • Screen recordings
  • Text overlays
  • Video templates

Quality: Very professional, though clearly AI

Speed: 5-15 minutes generation time

Pricing:

  • Starter: $29/month (10 min/month)
  • Creator: $89/month (30 min/month)
  • Enterprise: Custom

Best for:

  • Training videos
  • Course content
  • Product demos
  • Corporate communications
  • Explainer videos

Why companies use it: Create videos without camera, studio, or on-screen talent

4. HeyGen

What it does: Similar to Synthesia—AI avatar videos

Unique features:

  • Video avatars (from your video)
  • Voice cloning
  • Video translation (speak in 40+ languages)
  • More realistic avatars than competitors

Stand-out feature: Upload video of yourself, create AI avatar that can say anything

Quality: Most realistic avatars currently

Pricing:

  • Free: 1 minute credit
  • Creator: $29/month
  • Business: $89/month
  • Enterprise: Custom

Best for:

  • Personal brand content
  • Multilingual content
  • YouTube/social media
  • When you want YOUR face but AI convenience

Real use case: Record once in English, publish in 40 languages

5. Descript

What it does: All-in-one video editor with AI features

AI Features:

  • Edit video by editing text transcript
  • Remove filler words automatically
  • AI voiceover
  • Green screen
  • Eye contact correction (you look at camera even when reading)
  • Studio sound enhancement

Why it's different: Not pure AI generation, but AI-powered editing

Workflow:

  • Record talking video
  • AI transcribes
  • Edit like a document
  • AI fixes audio, removes "ums," corrects eyes
  • Export polished video

Pricing:

  • Free: Limited
  • Creator: $24/month
  • Pro: $40/month

Best for:

  • Podcasters
  • YouTubers
  • Course creators
  • Anyone who records themselves

Time savings: 10x faster editing

6. OpusClip

What it does: AI repurposes long videos into viral short clips

How it works:

  1. Upload long video (podcast, webinar, YouTube)
  2. AI finds best moments
  3. Adds captions, hooks, b-roll
  4. Generates multiple short clips
  5. Predicts virality score

Features:

  • Auto captions with highlighting
  • AI clip selection
  • Viral score prediction
  • One-click posting to socials
  • Facecam focus
  • Brand templates

Quality: High—looks professionally edited

Pricing:

  • Free: 60 minutes processing
  • Starter: $9/month (150 min)
  • Creator: $29/month (300 min)
  • Pro: $129/month (2,000 min)

Best for:

  • Podcasters
  • Long-form content creators
  • Turning 1 video into 20+ clips

ROI: One long video → 10-20 social media posts

7. Pictory

What it does: Convert scripts/articles into videos

Use case: Turn blog posts or scripts into video content

Process:

  1. Input text (blog post, script, article)
  2. AI selects relevant stock footage
  3. Adds voiceover (AI or yours)
  4. Adds captions
  5. Generates video

Features:

  • Text-to-video
  • Script-to-video
  • Auto-captions
  • Huge stock media library
  • Realistic AI voices

Quality: Professional stock-video style

Pricing:

  • Free: 3 video projects
  • Standard: $23/month
  • Premium: $47/month

Best for:

  • Bloggers turning articles into videos
  • Marketing teams
  • Social media content
  • Repurposing written content

Speed: 10 minutes from article to video

8. Fliki

What it does: Similar to Pictory—text to video

Unique features:

  • 2,000+ realistic voices
  • 75+ languages
  • AI avatar option
  • Blog-to-video
  • Tweet-to-video

Quality: Good, stock-video based

Pricing:

  • Free: 5 minutes/month
  • Basic: $28/month
  • Standard: $88/month

Best for: Multilingual content, voiceovers

9. D-ID

What it does: Animate photos into talking videos

Use case: Make any image talk

Process:

  • Upload photo (historical figure, product, selfie)
  • Add script
  • Choose voice
  • Generate talking video

Creative uses:

  • Historical figures speaking
  • Product advertisements
  • Personalized messages
  • Educational content

Pricing:

  • Free: 20 credits trial
  • Lite: $5.9/month
  • Pro: $29/month

Best for: Creative projects, education, unique content

10. Steve.AI

What it does: Animated video creation from text

Style: Animation and cartoon videos

Features:

  • Text-to-animation
  • Live-action option
  • Character builder
  • Huge asset library

Use cases:

  • Explainer videos
  • Educational content
  • Marketing videos
  • Social media

Pricing:

  • Free: Watermarked videos
  • Basic: $20/month
  • Pro: $60/month

Best for: Animated explainers, when live-action isn't needed

Comparison Matrix

| Tool | Best For | Pricing (Start) | Generation Type | Quality | |------|----------|----------------|-----------------|---------| | Runway Gen-3 | Creative/B-roll | $15/mo | Text/Image-to-video | ⭐⭐⭐⭐⭐ | | Pika Labs | Budget creators | Free tier | Text/Image-to-video | ⭐⭐⭐⭐ | | Synthesia | Corporate/Training | $29/mo | Avatar videos | ⭐⭐⭐⭐ | | HeyGen | Personal brand | $29/mo | Avatar videos | ⭐⭐⭐⭐⭐ | | Descript | Editing | $24/mo | AI-powered editing | ⭐⭐⭐⭐⭐ | | OpusClip | Repurposing | $9/mo | Long-to-short | ⭐⭐⭐⭐ | | Pictory | Blog-to-video | $23/mo | Text-to-video | ⭐⭐⭐⭐ | | Fliki | Multilingual | $28/mo | Text-to-video | ⭐⭐⭐⭐ | | D-ID | Talking photos | $6/mo | Photo animation | ⭐⭐⭐ | | Steve.AI | Animation | $20/mo | Animated videos | ⭐⭐⭐ |

Use Case Recommendations

Social Media Content Creator

Stack:

  • Descript: Record and edit
  • OpusClip: Create shorts
  • Runway: B-roll Cost: ~$70/month

Marketing Team

Stack:

  • Synthesia: Product demos
  • Pictory: Blog content
  • OpusClip: Webinar clips Cost: ~$70/month

Course Creator

Stack:

  • Descript: Main editing
  • Synthesia: Module intros
  • Pictory: Supplementary content Cost: ~$80/month

YouTuber

Stack:

  • Descript: Editing
  • Runway: B-roll
  • Pika: Creative effects Cost: ~$50/month

Podcaster

Stack:

  • Descript: Video podcast
  • OpusClip: Social clips Cost: ~$35/month

Cost Analysis

Budget Stack ($30/month)

  • HeyGen OR Synthesia ($29)
  • Pika Free
  • Canva for thumbnails

Creator Stack ($70/month)

  • Descript ($24)
  • OpusClip ($29)
  • Runway Standard ($15)
  • Pika Free

Professional Stack ($150/month)

  • Descript Pro ($40)
  • Synthesia Creator ($89)
  • Runway Pro ($35)
  • Pika Standard ($10)

Agency Stack ($300+/month)

  • Multiple tools
  • Team accounts
  • Higher tiers

Quality Expectations (2026)

What AI Video Does Well:

✅ B-roll and scenery ✅ Short clips (5-15 seconds) ✅ Talking head videos (avatar) ✅ Abstract/creative content ✅ Product visualizations ✅ Voiceover videos with stock footage

What Still Needs Work:

❌ Long-form consistency ❌ Complex human interactions ❌ Perfect lip sync (improving fast) ❌ Hands and fingers (getting better) ❌ Brand-specific content without training

Real Creator Workflows

Workflow 1: Long-Form to Short-Form

  1. Record 30-min video (Descript)
  2. Auto-edit (remove ums, fix audio)
  3. Export to OpusClip
  4. Get 15-20 viral clips
  5. Post across platforms

Time: 2 hours (vs. 20 hours manually)

Workflow 2: Blog to Video

  1. Write/have blog post
  2. Input to Pictory
  3. AI selects footage
  4. Add custom voiceover (or AI)
  5. Publish to YouTube/social

Time: 30 minutes per video

Workflow 3: Training Video

  1. Write script
  2. Create in Synthesia with avatar
  3. Add slides and visuals
  4. Generate multiple language versions
  5. Deploy

Time: 1-2 hours (vs. days of production)

Getting Started

Week 1: Exploration

  • Try free tiers of 3-4 tools
  • Create test videos
  • Assess quality vs. needs

Week 2: Integration

  • Pick 1-2 tools
  • Create first real content
  • Develop workflow

Week 3: Optimization

  • Refine prompts/processes
  • Learn advanced features
  • Measure ROI

Week 4: Scale

  • Create content consistently
  • Build library
  • Track engagement

The Future (2026-2027)

Coming soon:

  • Feature-length AI films
  • Real-time video generation
  • Perfect lip-syncing
  • Consistent characters across scenes
  • AI understanding of complex instructions

Trend: From "impressive tech demo" to "production-ready tool"

Bottom Line

AI video generation in 2026:

  • Not perfect, but incredibly useful
  • Replaces low-budget stock video
  • Augments professional production
  • Enables creators without budgets

Best approach: Combine AI generation with human creativity and editing for best results.


What AI video tool are you using? Share your creations below!