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

Illustration of a man participating in an interactive video clothes survey.

Interactive video marketing: formats, workflow and metrics

· 5 min read
Interactive video marketing: formats, workflow and metrics
game trailers and teasers

7 AI game trailer generators and editors: workflow & costs (2027)

· 10 min read
7 AI game trailer generators and editors: workflow & costs (2027)
AI Voices Compared in 2026: OpenAI vs ElevenLabs vs Magic Hour vs Google — Which Voice Engine Actually Sounds Human?

6 AI voice generators compared: hosted and open source (2027)

· 5 min read
6 AI voice generators compared: hosted and open source (2027)
Short-Form vs Long-Form AI Video: The Real Tradeoffs in Tools, Costs, and Quality (What Creators Get Wrong)

Short-form vs long-form AI video: tools, costs and quality

· 10 min read
Short-form vs long-form AI video: tools, costs and quality
AI Video Tools for E-commerce That Turn Product Shots into High-Converting Ads

6 best AI video tools for ecommerce: a practical comparison (2027)

· 8 min read
6 best AI video tools for ecommerce: a practical comparison (2027)
Magic Hour Face Swap API vs DeepFaceLab vs InsightFace: Which Face Swap Tool Actually Works in Production?

Face swap API vs DeepFaceLab vs InsightFace (2027)

· 6 min read
Face swap API vs DeepFaceLab vs InsightFace (2027)
Build Flexible Video Pipelines Without Lock-In or Heavy Infrastructure

6 video AI APIs and open-weight deployment options (2027)

· 11 min read
6 video AI APIs and open-weight deployment options (2027)
Illustration showing text prompts transforming into AI-generated videos using developer APIs

7 best text-to-video APIs: models, queues & avatars (2027)

· 6 min read
7 best text-to-video APIs: models, queues & avatars (2027)
Editorial comparison of five AI video production routes using storyboards, references, audio, editing and effects

5 best Veo 3 alternatives: video, audio and costs (2027)

· 9 min read
5 best Veo 3 alternatives: video, audio and costs (2027)
Collage of the best Invideo alternatives

10 best InVideo alternatives in 2027: choose by workflow

· 7 min read
10 best InVideo alternatives in 2027: choose by workflow
AI video enhancement APIs improving video quality, resolution, and motion clarity across different use cases

Video enhancement APIs: documented options and how to evaluate them

· 3 min read
Video enhancement APIs: documented options and how to evaluate them
Ai-generated hero using Magic Hour with one of the art prompts from the list

32 best prompts for AI art to inspire your next project (2027)

· 23 min read
32 best prompts for AI art to inspire your next project (2027)