Codex reads screen recordings via Snipping Tool stills

Behind the demo is a simple workaround: Codex has no native video understanding, but it does recognize images. So the author inserted a conversion step between video and model, cutting the recording into stills with OpenCV at set intervals and assembling them with Pillow, while FFmpeg/ffprobe handled length, resolution and audio checks. In the walkthrough, the writer recorded their own screen while drafting this very article with Snipping Tool, saved it as MP4, and asked Codex to describe the clip; the model produced a timeline noting the intro text and later edits under a 'Codex' heading. The recording only covers the note-taking, not a moment where Codex answers on camera.

The author used GPT-6.1 Sol and frames the technique as a first step, suggesting the same captured content could later support requests to build automation scripts or generate procedure manuals. That remains a suggestion rather than something demonstrated in the article.