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

Editorial cover for best AI image expanders, with a desert-house photograph, expanded crop frame and paper collage
Images

5 best AI image expanders in 2027: uncrop without stretching

· 14 min read
5 best AI image expanders in 2027: uncrop without stretching
best ai inference providers
App Picks

What Are the Best AI Inference Providers in 2027?

· 18 min read
What Are the Best AI Inference Providers in 2027?
Editorial illustration of a portrait coastal-road frame expanded into a landscape canvas; conceptual artwork, not a generated product result.
Videos

3 best AI video expanders: outpainting, limits & exports (2027)

· 11 min read
3 best AI video expanders: outpainting, limits & exports (2027)
Summrs AI alternatives: hand-drawn face, character and motion storyboard in Magic Hour editorial colors
Videos

Summrs AI alternatives: face swap, character replacement & motion (2027)

· 10 min read
Summrs AI alternatives: face swap, character replacement & motion (2027)
DeepSwapper face swap guide: illustrated portraits, official DeepSwapper mark, free photo and video access questions
Face Swap

DeepSwapper face swap: free limits, video access & alternatives

· 9 min read
DeepSwapper face swap: free limits, video access & alternatives
Magic Hour original platform data: What Gets Counted? Dark editorial ledger illustration with one excluded row, lime and violet accents.
Videos

AI Video Reliability: How a Deletion Filter Nearly Halved the Measured Error Rate

· 5 min read
AI Video Reliability: How a Deletion Filter Nearly Halved the Measured Error Rate
Conceptual optical-illusion print and magnifying glass beside Sure You Can Tell? Original Data.
Trends

70% of Extremely Confident Viewers Mistook AI Ads for Real in Our Test

· 5 min read
70% of Extremely Confident Viewers Mistook AI Ads for Real in Our Test
Conceptual unbranded product-ad print with a peeled corner revealing construction lines beside The AI Ad Reveal.
Trends

28.3% Would Feel Deceived After an AI Ad Reveal

· 4 min read
28.3% Would Feel Deceived After an AI Ad Reveal
Conceptual paper timer and receipt-shaped bench beside the words Time Saved. Rest Rarely Named.
Trends

AI Saves Hours. Only 10.4% Name Rest and Recovery.

· 5 min read
AI Saves Hours. Only 10.4% Name Rest and Recovery.
A physical creative testing wall with three different ad hooks and image compositions as printed cards, one variable changed at a time, marked with color-coded tape
Guides

AI ad creative testing: isolate hooks, visuals and offers

· 8 min read
AI ad creative testing: isolate hooks, visuals and offers
Eight hand-cut storyboard frames of one consumer product: hero, detail, use, proof, close, all on a director's desk with blue-red editing marks
Guides

How to make an AI product demo video: 8-shot workflow

· 8 min read
How to make an AI product demo video: 8-shot workflow
A portrait photograph beside a handwritten cue card and microphone, physical storyboard frames for a concise talking-photo message
Guides

Talking photo script templates: 12 short formats

· 10 min read
Talking photo script templates: 12 short formats
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