Best AI Video Generators · head-to-head
Captions vs HeyGen
A sourced, side-by-side comparison for ai video generators. Captions has the lower entry price. Every figure links to the public page it was captured from — the vendor's own wherever the vendor publishes the number, otherwise the named public source — with the date we captured it.
Captions has the lower entry price — Captions starts at $0/mo, HeyGen at $0/mo. Free tier: Captions Yes, HeyGen Yes. HIPAA: Captions —, HeyGen —.
As of 2026-09-02 · figures link to their source below
Side by side
Captions
$0/mo entryHeyGen
$0/mo entrySources — Captions: captions.ai (verified 2026-09-02) · HeyGen: heygen.com (verified 2026-09-02)
Key features
Captions: AI Edit: auto-cuts scenes, overlays B-roll, applies styling from raw footage; AI captions with trending styles in 100+ languages; Custom AI avatars (digital twins from selfies); AI actor generation with customizable outfits and backgrounds; Video translation and dubbing into 30+ languages; Eye contact correction; Audio denoising and filler word / pause removal; Chat-based editor: direct edits via text prompts; Teleprompter built in; Available on iOS, Android, and web
HeyGen: 1,100+ pre-built photorealistic avatar models; Avatar IV: single photo to video with natural lip-sync and expressions; Photo Avatar: unlimited AI avatars from one image via text prompts; UGC Avatars: creator-style content for TikTok, Reels, YouTube; Video translation into 175+ languages with voice cloning; AI video dubbing with lip-sync preservation; 4K resolution output (Business plan and above); Brand kit for consistent visual identity; HeyGen API for programmatic video generation; 141M+ videos generated (platform scale indicator)