Simon Willison has developed a video compressor tool using Claude Fable 5.1 and FFMPEG. The tool is built with the WebAssembly version of FFMPEG, allowing for efficient video optimization directly in web applications. This solution is particularly useful for engineers looking to reduce file sizes of videos for web publishing, improving both performance and storage efficiency. The tool is accessible through Claude Code for web build, making it easy to integrate into existing workflows.
Source: https://simonwillison.net/2026/Sep/7/video-compressor/