NotebookLM vs Tencent ZenVideo
Compare NotebookLM and Tencent ZenVideo: free credits, features, and ratings. Which one is right for you?
Category
LLM
Video Generation
Rating
β 5
β 3
Free Credits
999999 unlimited
30 seconds per video
Refresh Period
unlimited
one-time
Resolution
N/A
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Watermark
No
Yes
Commercial Use
Yes
No
Paid From
Completely free
~$420/year
NotebookLM
Google's AI research tool, completely free. Up to 50 sources per notebook, auto-generates podcasts, video overviews, reports. Most underrated free AI tool of 2026.
Pros
- βCompletely free no limits
- βUnique podcast generation
- βAnswers based on source material
- βGoogle ecosystem integration
Cons
- βRequires Google account
- βMay need VPN in China
- βPodcasts currently English only
Key Features
Document analysis and Q&AAuto podcast generationAuto video overviewReport generationMind maps50 sources per notebook
Tencent ZenVideo
Tencent's digital human video platform. Supports text-driven digital avatar narration, AI dubbing, and video editing. Free version available with watermark and length limits.
Pros
- βNatural-looking digital humans
- βMulti-language support
- βGreat for education and training
Cons
- βFree version has watermark
- βStrict length limits on free tier
- βPaid plans are expensive
Key Features
Digital Human VideoAI DubbingVideo EditingLive StreamingAsset Library