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 paper-and-ink collage of a cyclist and storyboard frames for the Kling 4.0 reference guide
Videos

Kling 4.0 reference guide: prompts, inputs and first-clip checks

· 6 min read
Kling 4.0 reference guide: prompts, inputs and first-clip checks
Magic Hour editorial illustration for creative analytics; conceptual artwork, not a measured result.
Guides

Analytics tools for video and social content: choose by decision

· 12 min read
Analytics tools for video and social content: choose by decision
Arcads alternatives: editorial collage of a creative brief, travel mug, clapperboard and hand-drawn video-ad storyboards.
Guides

Arcads alternatives: 4 AI ad workflows compared (2027)

· 12 min read
Arcads alternatives: 4 AI ad workflows compared (2027)
Speechify alternatives: editorial collage of headphones and a document, a microphone and waveform, and a speaking profile in a film frame.
Guides

Speechify alternatives: reading, voiceovers and video (2027)

· 11 min read
Speechify alternatives: reading, voiceovers and video (2027)
Editorial illustration for Descript versus CapCut: podcast presenter, transcript and video timeline. Conceptual artwork, not a product screenshot.
App Picks

Descript vs CapCut: choose your editing workflow

· 9 min read
Descript vs CapCut: choose your editing workflow
Magic Hour editorial illustration of a video editing desk and interview film strips beside the title 5 Kapwing Alternatives; conceptual cover, not a software screenshot.
App Picks

5 Kapwing alternatives for free editing, transcripts and AI clips (2027)

· 10 min read
5 Kapwing alternatives for free editing, transcripts and AI clips (2027)
The Black Sports Car: original production reference 1 from AI Video Editor, source page 8.
Guides

How we made AI Video Editor with Magic Hour

· 15 min read
How we made AI Video Editor with Magic Hour
T-Rex in the City Action: original production reference 1 from Good Agency, source page 23.
Guides

How to Make Cinematic Films with Magichour

· 16 min read
How to Make Cinematic Films with Magichour
Editorial paper collage for best static AI ad generators, with three illustrative ad concepts for an unbranded water bottle
Images

4 best AI ad creative generators for static ads (2027)

· 13 min read
4 best AI ad creative generators for static ads (2027)
Editorial illustration for best AI meme generators: an original comic raccoon at an office desk with editable caption panels
Guides

5 best AI meme generators: templates, captions, GIFs & video (2027)

· 14 min read
5 best AI meme generators: templates, captions, GIFs & video (2027)
Editorial illustration for best AI influencer generators, with an illustrated fictional persona and a character-reference collage
Images

4 best AI influencer generators: persona, posts & video (2027)

· 14 min read
4 best AI influencer generators: persona, posts & video (2027)
Editorial cover for best AI storyboard tools, with a pencil-drawn bicycle sequence on a filmmaker desk
Guides

5 best AI storyboard generators for scripts, panels & animatics (2027)

· 12 min read
5 best AI storyboard generators for scripts, panels & animatics (2027)
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