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

Best Image Upscaling APIs

7 best image upscaling APIs: limits, costs and use cases

Apr 13, 2026· 7 min read

AI Photo Editors for Product Photography

8 AI photo editors for product photography: a practical guide

Apr 12, 2026· 8 min read

Remove Background From Product Photos

Remove backgrounds from product photos: a practical guide

Apr 10, 2026· 5 min read

Edit Product Photos with AI

How to edit product photos with AI: workflow and prompts

Apr 09, 2026· 5 min read

Use Reference Images in Image-to-Video

How to use reference images for image-to-video

Apr 08, 2026· 4 min read

Audio-to-Video Sync Tools

7 best audio-to-video AI tools for 2026

Apr 07, 2026· 5 min read

Extend a Video With AI

How to extend a video with AI: steps, prompts and limits

Apr 06, 2026· 7 min read

AI Video Editing Tools

8 best AI video editing tools (2026): choose by workflow

Apr 05, 2026· 6 min read

AI Video Generators for Marketing Teams

9 best AI video generators for marketing teams: ads, UGC and brand video

Apr 04, 2026· 8 min read

Multimodal Video APIs

Best multimodal video APIs: inputs, controls & costs

Apr 03, 2026· 3 min read

Make UGC-Style Video Ads

How to make UGC-style video ads with AI: workflow and prompts (2026)

Apr 02, 2026· 5 min read

AI Voice Generator for Ads

AI voice generators for ads: tools & 10 script examples

Apr 01, 2026· 7 min read

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