GuidesJuly 20, 2026

AI Video for Social Media: Size, Format & Best Practices

Why AI Video Is Perfect for Social Media

Social media platforms prioritize video content. AI-generated videos give you an endless supply of fresh content without filming anything.

Platform Specifications

TikTok

  • Aspect ratio: 9:16 (vertical)
  • Duration: 10-15 seconds optimal
  • Resolution: 720p minimum
  • Tip: First 2 seconds must grab attention

Instagram Reels

  • Aspect ratio: 9:16 (vertical)
  • Duration: 10-30 seconds
  • Resolution: 1080p recommended (720p acceptable)
  • Tip: Use trending audio with your AI video

YouTube Shorts

  • Aspect ratio: 9:16 (vertical)
  • Duration: Under 60 seconds
  • Resolution: 720p minimum
  • Tip: Add text overlay for accessibility

YouTube (Regular)

  • Aspect ratio: 16:9 (horizontal)
  • Duration: Any
  • Resolution: 1080p preferred
  • Tip: Use AI clips as B-roll in longer videos

Content Strategy

1. Series Content

Create a series of AI videos on a theme (e.g., "AI food art of the day"). Series build audience expectation and return visits.

2. Before/After

Show a static image, then reveal the AI-animated version. This creates engagement through transformation.

3. Trending Topics

Use AI video to visualize trending topics, news, or cultural moments. Speed matters—post within 24 hours of a trend.

4. Educational

Use AI video to illustrate concepts: "How a volcano erupts" with AI-generated eruption footage.

Posting Schedule

PlatformOptimal frequencyBest times (US)
TikTok1-3x daily6-10 AM, 7-11 PM
Reels1x daily11 AM-1 PM, 7-9 PM
Shorts1x daily12-3 PM, 7-10 PM

Conclusion

AI video removes the biggest barrier to social media success: content production. With FreeAI Video, you can create professional-quality clips for every platform, every day, completely free.

Start creating social media content →