Runbo Li

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

How to Put a Cartoon Character Into a Real Video With AI (Free, 2026)
Guides
How to put a cartoon character into a real video with AI
· 4 min read
Turn Yourself Into an Anime Character
Guides
How to turn yourself into an anime character in a video
· 4 min read
A Free AI Guide for 2026
Guides
How to replace a character in a video with AI for free
· 8 min read
Fable vs Sol taste test — hero
Trends
Testing Fable vs Sol in terms of taste (they are both bad)
· 38 min read
(Free, No Drawing Skills Needed)
Guides
How to generate a storyboard with AI for free
· 8 min read
Turn Audio Into a Video With AI
Guides
How to turn audio into video: 5 reliable workflows (2026)
· 5 min read
Change Video Aspect Ratio With AI
Guides
How to change video aspect ratio with AI: step-by-step
· 5 min read
Extend a Video With AI for Free
Guides
How to extend a video with AI for free (no sign-up, step-by-step)
· 6 min read
29 open-source image generation models field guide — hero
Top Choice
29 open-source image generation model families to run locally in 2026
· 33 min read
Unboring AI Alternatives (2026)
App Picks
5 Unboring AI alternatives for photo and video face swap
· 4 min read
AiFaceSwap.io review cover with a face-swap logo and supported-media checklist
App Picks
AiFaceSwap.io review: free limits, video costs and alternatives
· 7 min read
Clone Your Voice With AI
Guides
How to clone your voice with AI (free, from a 3-second sample)
· 6 min read
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