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Creative & Video

How to Create AI Videos for Social Media with HeyGen and CapCut

Learn how to produce high-engagement short-form videos, AI avatar presentations, dynamic voiceovers, and auto-captioned clips for TikTok, YouTube Shorts, and Reels.

Role
Content Creators, Social Media Managers, Digital Marketers, Video Editors
Language
en
Duration
2026-09-21

Short-form video dominates social media discovery, but shooting, voicing, editing, and captioning video content manually is resource-intensive. By combining AI avatar and voice generation from HeyGen and ElevenLabs with automated video editing in CapCut AI, creators can produce engaging social content in a fraction of the time.

1. Scripting for Short-Form Video Retention

High-performing short-form video requires a 3-second hook, concise pacing, and a clear call to action. Draft your script following this structure:

  • **0:00–0:03 Hook**: A surprising question, bold statement, or high-value tip.
  • **0:04–0:45 Core Value**: 3 actionable takeaways explained with zero filler.
  • **0:46–0:60 CTA**: Follow for more tips or link in bio callout.

2. Generate Expressive Voiceovers and Avatars

  • **AI Voiceovers**: Generate natural, expressive voice tracks with ElevenLabs by choosing realistic voice profiles tailored for energetic social content.
  • **AI Talking Avatars**: If producing presenter-led videos without filming on camera, use HeyGen to generate a custom photorealistic avatar speaking your script with precise lip synchronization.

3. Assemble and Clip Footage in CapCut AI

Import your generated video or audio clips into CapCut AI:

  • Use **Script-to-Video** to automatically match text segments with relevant B-roll footage and transitions.
  • Use **Smart Clipping** to break long-form webinar or podcast recordings into 30–60 second highlights.

4. Generate Animated Dynamic Captions

Over 75% of social media users watch videos with sound turned off. Use CapCut AI's automated caption generator to create animated, styled subtitles with karaoke-style highlighting and emojis.

5. Add Sound Effects and Visual Polish

Add subtle sound effects (whooshes, popups) at every major visual transition to reset viewer attention. Ensure video dimensions match target platform aspect ratios (9:16 vertical for Shorts, TikTok, and Reels).

6. Review and Schedule Across Platforms

Export high-bitrate 1080x1920 MP4 files and verify video pacing on mobile before publishing.

Learn more creative production workflows in the AI Content Creator Path.