Claude just got another superpower...

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Summary based on the YouTube transcript and episode description.

Fireship demos Claude Design, Anthropic’s Opus 4.7-powered tool that converts Figma files into interactive UI prototypes, and finds it impressive but unreliable.

  • Figma stock dropped 7% within hours of the Claude Design announcement on April 21, 2026.
  • Opus 4.7 scores 87.6% on the SWE benchmark, beating Opus 4.6 but still trailing the unreleased ‘Mythos’ model.
  • Opus 4.7 sees images at 3.75 megapixels (up to 2576px long edge), a significant jump for design comprehension.
  • Claude Design accepts Figma file uploads and GitHub-linked design systems to enforce visual consistency across generated screens.
  • In live testing, Claude Design ignored the uploaded design system and produced generic ‘Claude-looking’ output instead of matching the provided brand.
  • Claude Design generates fully interactive UIs with working animations, shaders, and video sequences over one minute long — ahead of Google Stitch on interactivity.
  • A vocal online contingent claims Opus 4.7 is a regression and alleges Anthropic intentionally degraded 4.6 to make 4.7 appear stronger at launch.

2026-04-21 · Watch on YouTube