AI-generated viral clips may be HTML code rather than actual video files

A viral clip you are watching may contain no video file at all, but instead a single block of code that an AI wrote from a short prompt. A GitHub repository called awesome-opus5-5-videos collects such clips made with Claude Opus 5.5, along with the prompts used, and has gained over 13,000 stars. The author counted 703 prompts in the dataset, 418 of which were re-rendered by Skillry for side-by-side comparison, and the Opus 5.5 model launched on September 22, 2026. The article argues that code-based animation is cheaper to produce and easier to adjust than traditional video editing, since individual elements can be changed without re-editing the whole sequence. It also notes that the clips use a range of tools such as canvas, SVG, and Three.js, and that crafting a clear prompt is itself the key skill.