ReDeck Uses Step-Level Rendering Feedback to Refine AI-Generated Slides

Summary

ReDeck introduces a render-grounded framework that breaks slide revision into atomic edits and observes the rendered result after each step. It combines spatial, semantic, design, and hard validation feedback, and introduces DeckQuiz for separate evaluation of content, layout, and design. Tests across GPT-5.4, Claude-4.6, and Gemini-3.1 show consistent gains over existing slide-generation agents.