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Kling 4.0 vs sync.

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Kling 4.0 compared with sync.
DetailKling 4.0 logo Kling 4.0sync. logo sync.
What it doesAI video generator for creating cinematic videos from text, images, and references with up to 30-second 4K output AI lip sync, dubbing and talking video for Claude Code, Codex, Cursor and other agents
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Freemium
PricingFree: 50 daily credits for eligible accounts. Monthly subscriptions: Basic $16.00/month (800 credits), Standard $32.00/month (1,600 credits), Pro $80.00/month (4,000 credits). Yearly billing available at 20% discount: Basic $192.00 yearly, Standard $384.00 yearly, Pro $960.00 yearly. Credit packs av Free tier: 3 free video generations per month (up to 15 seconds each), 10 monthly audio generations. Paid plans on legacy usage billing: Hobbyist ($6 invoice threshold, $0.04-$0.05/sec lipsync-2), Creator ($20 threshold, $0.067-$0.083/sec lipsync-2-pro), Growth ($50 threshold), Scale ($250 threshold
Key features
  • Two-channel stereo audio with improved audiovisual synchronization
  • Text-to-video and image-to-video generation
  • Multimodal video editing for targeted changes
  • Multiple aspect ratios including 21:9, 16:9, 1:1, and 9:16
  • Daily free credits for eligible accounts
  • Watermark-free downloads with paid plans
  • Lip-sync videos to new audio or typed scripts
  • Make photos, portraits and characters talk
  • Add dialogue to AI-generated video clips from Veo, Kling, Sora
  • Dub videos into other languages with matching lips
  • Edit or remove spoken words in original voice
  • Localize campaigns across multiple markets
  • Batch lip-sync CSV rows or folders resumably
  • Build sync. into apps with REST API and SDKs
  • Integration with Claude Code, Codex, Cursor and other agents
  • Cost estimation and approval before paid work
What makes it different
  • Up to 10 flexible keyframes for precise visual direction across 30-second videos
  • Multimodal reference system combining images, videos, subjects, and voice
  • Professional-grade 10-bit HDR output at 1080p and 4K resolutions
  • Agent-first approach: works natively with Claude Code, Codex, Cursor and other AI agents
  • Plain language commands: describe what you want and the agent picks the matching skill
  • Always-approved billing: costs quoted before paid work with user approval required
  • Complete end-to-end workflow: from lip-sync to dubbing to localization to API integration
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)5 no change since last check67 +1 (up) since last check
Trust Flow (Majestic)612
Citation Flow (Majestic)2342
Referring domains (Majestic)111145

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