Runbo Li
CEO of Magic Hour
Runbo Li is the Co-founder and CEO of Magic Hour, where he builds AI video and image tools for content creation. He is a Y Combinator W24 founder and former Data Scientist at Meta, where he worked on 0-1 consumer social products in New Product Experimentation. He writes about AI video generation, AI image creation, creative workflows, and creator tools.
Latest articles
Best multimodal video APIs: inputs, controls & costs (2027)
· 3 min read
How to make UGC-style video ads with AI: workflow and prompts (2027)
· 5 min read
AI voice generators for ads: tools & 10 script examples
· 7 min read
Face swap for ads: consent, disclosure and review checklist
· 5 min read
How to swap multiple faces in a video: mapping & fixes
· 11 min read
How to face swap a GIF: free steps, tools and export tips
· 6 min read
Best face swap video apps: uploads, multi-face and costs (2027)
· 13 min read
Kling 3.0 vs Sora 2 after shutdown: what to use now
· 8 min read
Is AI voice cloning legal? Consent, licensing & disclosure
· 6 min read
Seedance 2.5 vs Runway Gen-4.5: controls, length & cost
· 4 min read
AI video generators with native audio: 4 current models (2027)
· 5 min read
How to copy camera movement from a reference video
· 6 min read