Captions vs Synthesia

Tagline

AI That Edits Like a Professional Editor

Create studio-quality AI avatar videos

Category

Pricing

Rating

Platforms

API

Open source

Description

Captions is an AI video generator and editor that makes it easy to go from idea to ready-to-share content. It edits existing footage, generates custom AI avatars, and translates videos with automatic captions, eye-contact adjustment, and noise removal.

Synthesia generates videos with realistic AI avatars in 140+ languages without cameras.

Key features

• AI Edit Style Library
• Chat-based Editing
• Digital Twins & Custom AI Actors
• Auto-Captions & Subtitles
• Translation in 100+ Languages
• Eye Contact Correction
• Background Noise Removal
• Filler Word and Pause Removal
• Custom B-Roll Generation
• AI Music and Sound Effects Generation

• Shot lists
• Camera notes
• PDF export

Pros

• Offers a free version that includes basic tools such as trimming, transitions, and media assets.
• Available across multiple platforms including iOS, Android, and web browsers.
• Supports automatic video translation and subtitling in more than 100 languages.
• Provides specialized video enhancements like eye contact correction and background noise removal.
• Unused plan credits roll over from month to month, holding up to 3x your monthly allowance.
• Features digital twins and custom AI actors that can change outfits, backgrounds, or product inserts.
• Enables chat-based editing using simple text prompts for quick visual updates.
• Automatically cuts scenes and overlays custom B-roll, music, and sound transitions.
• Allows upgrading or downgrading plans anytime with immediate prorated billing and access.

• 230+ AI avatars
• 140+ languages
• Custom avatars available
• No cameras or studios needed
• Enterprise SSO and SOC 2
• Templates library
• API access
• Team collaboration

Cons

• The free version has limited features and excludes generative AI and advanced editing tools.
• No public API or developer documentation is mentioned in the provided site contents.
• No mention of open-source licensing or publicly available source code repository.
• Unused credit rollover is capped at a maximum of two extra months of unused credits.
• Higher-tier Scale plans can become expensive, ranging from $69.99/mo to $279.99/mo.

• Avatars can feel uncanny
• No free tier
• Subscription is expensive
• Requires script preparation
• Lip-sync varies by language
• Not for live video
• Custom avatars are costly
• Default look is very corporate

Pricing plans

• BasicUSD0/month
  • • try for free
  • • Quickly start creating AI videos
  • • Create videos in 160+ languages
  • • No credit card required
• StarterUSD29/month
  • • Create AI videos with your own Personal Avatar
  • • What you get in Basic +
  • • Custom on-brand Avatars
  • • Try for FREE
• StarterUSD18/month
  • • Create AI videos with your own Personal Avatar
  • • What you get in Basic +
  • • Custom on-brand Avatars
  • • Try for FREE
• CreatorUSD89/month
  • • Produce AI videos regularly with your team
  • • What you get in Starter +
  • • 5 Personal Avatars
  • • For teams
• CreatorUSD64/month
  • • Produce AI videos regularly with your team
  • • What you get in Starter +
  • • 5 Personal Avatars
  • • For teams
• Enterprise—
  • • What you get in Creator +
  • • Unlimited Personal Avatars
  • • Live team collaboration
  • • Dedicated Customer Success team

Website