Show HN: Turn any topic into a 3Blue1Brown-style video
lafalce Saturday, January 10, 2026
Hey HN! I built Topic2Manim to automate the creation of educational videos like those from 3Blue1Brown.
The workflow is simple:
1. Give it any topic (e.g., "how ChatGPT works")
2. An LLM generates an educational script divided into scenes
3. LLM generates Manim code for each scene
4. FFmpeg concatenates everything into a final video
Currently working on TTS integration for narration!
Would love feedback on the approach and ideas for the TTS integration
Summary
The article discusses the creation of a Python library called 'topic2manim', which allows users to convert topic models into Manim animations. The library provides a convenient way to visualize and explore topic models through dynamic, animated representations.
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