Guizang PPT Skill vs Huashu Design: Deep Comparison of Two AI Design Approaches

Key points

• Guizang (guizang-ppt-skill) — 8.3k GitHub stars, MIT licensed, single-file HTML output. Two locked visual systems: electronic magazine + Swiss Internationalism. Rejects custom hex colors; enforces 5 preset themes and 22 fixed templates. Built around motion-driven horizontal swipe decks with WebGL shaders and Motion One transitions. Origin: distilled from offline "one-person company" talks.
• Huashu (huashu-design) — 13.5k stars, 1.9k forks, MIT for personal use (enterprise: USD 1,800/year or USD 3,500 one-time). Five delivery categories: interactive prototypes, slides, motion design, design variants, infographics. Outputs: HTML / MP4 / GIF / PPTX / PDF / PNG / SVG. Origin: reverse-engineered from Claude Design's system prompt.
• Philosophy clash — Guizang embodies "constraints equal freedom" (expert system, locked aesthetics, minimum user choice); Huashu embodies "context equals design" (brand-asset-first, 20 philosophies selectable, larger creative space).
• Core Asset Protocol (Huashu) — 5-step brand-asset pipeline: Ask → Search → Download → Verify → Freeze. A/B testing reportedly cut stability variance by 5x.
• Anti-AI-Slop rules (Huashu) — explicit bans on purple-blue gradients, emoji icons, rounded left borders, SVG human silhouettes, Inter as display font, CSS silhouettes standing in for product imagery.
• Validation tooling — Guizang ships a validate-swiss-deck.mjs script plus a manual checklist.md; Huashu uses a 5-dimension critique radar (philosophical coherence, visual hierarchy, execution craft, functionality, innovation).
• Animation model — Huashu uses a Stage + Sprite time-slicing API (useTime, useSprite, interpolate, Easing) with 6 built-in scene BGM tracks. Limit: no 3D, physics, or particle systems.
• Technical architecture — Guizang: native HTML + CSS + WebGL shader + Motion One, with motion.min.js offline (~64KB) and a low-perf B key toggle. Huashu: HTML + CSS + Stage/Sprite, plus html2pptx.js for editable PPTX and render-video.js for MP4 export.
• Use-case split — Guizang suits solo creators needing emotion-driven web slides for demos or private events. Huashu suits teams needing clickable prototypes, brand-locked decks, MP4/GIF outputs, or multi-variant exploration.
• Limits flagged by the author — Guizang: single-file HTML blocks collaboration; magazine style caps information density; external Codex image generation adds variable cost. Huashu: self-described "80-point skill, not 100-point product"; PPTX conversion is one-way; brand-from-zero output drops to 60–65 points; enterprise license pricing.
• Trend insight — AI design tools are migrating from GUI to conversation. "Skills" are emerging as structured-prompt + asset-template + quality-check packages. Future directions: deeper vertical specialization, broader cross-media outputs, stricter automated critique, and heavier brand-consistency protocols.
• When to pick neither — multi-user real-time editing (Google Slides / Figma), complex interactive data viz (Observable / Flourish), formal investor templates (Slidebean / Pitch), or zero-learning-curve generators (Gamma / Tome).

References

• Guizang PPT Skill: https://github.com/op7418/guizang-ppt-skill
• Huashu Design: https://github.com/alchaincyf/huashu-design