Anthropic unveils Claude 3.5: multimodal reasoning and a native design assistant API

AI · 4 min read

Anthropic today announced Claude 3.5, the successor to Claude 3, with improvements in multimodal reasoning and a new 'Design Assistant API' that returns structured JSON responses for layouts, color palettes, and component hierarchies. Claude 3.5 aims to reduce hallucinations by returning verifiable transformations and step-by-step edits.

The Design Assistant API supports image, SVG, and Figma file inputs, producing change sets and suggested commits that design tools can apply automatically. Anthropic also introduced a prompt-safety layer for style guidance to prevent inappropriate or copyright-infringing content when training on diverse datasets.

Compared to prior Claude releases, 3.5 focuses on deterministic edits and traceability, which Anthropic argues is crucial for enterprise design systems. Early adopters include agencies testing automated branding refreshes and product teams using it for spec generation and accessibility compliance.