Claude Fable wrote Python code and rendered a short video about itself
A user prompted to use any it wanted, write Python, and produce a short video about what it is like to be itself. Fable completed the video in roughly 12 minutes, consuming around 90,000 tokens in the process.
It used ffmpeg, a widely-used video processing tool, to render the final file. The result was coherent and polished enough to genuinely impress the user.
The prompt was adapted from a Twitter example that asked for a '' style meme video; the user stripped out the meme angle and kept the creative self-portrait framing instead. The experiment happened just before Anthropic's official Fable announcement.
Key points
- wrote Python code and used ffmpeg to produce a complete short video ly.
- The whole process took about 12 minutes and used roughly 90,000 tokens.
- The only instruction was: use whatever you like, make a short video in Python, make it personal — about what it's like to be you.
- The output was coherent and complete with no manual editing by the user.
- This happened just before the official announcement.