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Ink Knife AI: an intelligent prototype design platform and AI Agent full process assistant designed

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Ink Knife AI is an AI functional module launched by the well-known prototype design platform Ink Knife in China, designed specifically for product managers and designers. The platform integrates four expert modes of AI Agent (prototype design, PRD writing, product research, and solution review),

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In China’s Product Design & Prototyping Tool Market, Modao Has Become an Industry Standard for All Product Managers

Developed by Beijing Modaoke Stone Technology Co., Ltd., Modao is an all-in-one prototyping and collaboration platform integrating whiteboarding, prototype design, design delivery and flowchart tools. It has long served as the core daily collaboration hub for product managers, UI/UX designers and developers nationwide. In 2025, as AI swept across product design workflows, Modao officially launched Modao AI — an intelligent design assistant deeply built on the Doubao Large Model 1.6 series. It frees product managers from repetitive manual prototype drawing and tedious document drafting.

Core Capability of Modao AI: Eliminate Manual Prototyping From Scratch

Official tests and reviews from multiple tech media confirm its standout advantage: users only need to input simple natural language prompts (e.g., “Design a login and registration page for a social e-commerce app”), and Modao AI generates a fully editable high-fidelity prototype within 30 seconds.

This sets it fundamentally apart from competing AI generators that only output static non-editable images. What Modao AI produces is a complete native Modao project file. Every button, text field and image placeholder exists as an independent editable component. Users can drag, resize and modify all elements exactly like self-drawn prototypes.

Multimodal Input Cuts the Barrier to Starting Prototyping

Beyond text generation, Modao AI supports diverse multimodal input methods to lower creation thresholds drastically. You can generate pages via text prompts, or upload hand-drawn sketches, wireframes, competitor app screenshots, rough drafts and finished UI layouts. Its visual recognition engine intelligently parses layout structures and component logic from uploaded images to restore fully editable prototype pages instantly.

Whether you sketch a rough page frame on a whiteboard or spot an inspiring design from another application, simply take a photo and upload it. The AI converts scattered creative ideas into deliverable first drafts. This what-you-see-is-what-you-get workflow delivers an exponential efficiency boost for product managers who need to validate product concepts rapidly.

AI Agent Mode: A Full-Cycle Product Intelligence Assistant, Not a Simple Command Executor

A major highlight of Modao AI is its built-in AI Agent framework. Instead of merely executing single orders, it acts as an intelligent agent covering the entire product development lifecycle, equipped with four dedicated expert modes: prototype design, PRD writing, product research and solution review.

When exploring a brand-new product direction, you can assign sequential tasks to the AI: first run competitor and market analysis, then generate structured product requirement documents as an AI product manager, create high-fidelity prototypes via the AI design specialist, and finally invite the AI to act as a reviewer to raise questions and propose optimization suggestions for your solution.

During the whole workflow, product managers shift from hands-on executors to core decision-makers. You only make judgments and minor adjustments at each stage, while the AI handles most repetitive, labor-intensive work.

Hardcore Solution for Design-Development Collaboration Pain Points: Design-to-Code Generation

The biggest efficiency bottleneck in product iteration rarely lies in design itself, but the handoff between designers and front-end engineers. Developers must manually translate static designs into functional code, a time-consuming error-prone process. Modao AI solves this with native design-to-code functionality.

When generating prototypes, the AI follows standardized industry design system specifications and outputs ready-to-use React code directly. It prioritizes compatibility with the most widely adopted front-end design ecosystems: Ant Design (dominant for Chinese B-end backend systems), Shadcn UI (popular overseas lightweight framework), Material UI (Google’s official design language), Arco Design by ByteDance and TDesign by Tencent.

If the AI generates a CRM backend page built on Ant Design, front-end developers can copy the full code straight into production projects with only minor tweaks to props and business logic. The AI drastically slashes tedious slicing and page assembly work that burdens front-end teams.

Automated PRD Document Generation for Streamlined Team Collaboration

Product Requirement Documents (PRDs) are core deliverables for product managers yet extremely time-consuming to write, with frequent omissions of critical details. Based on AI-generated prototype pages and user requirement descriptions, Modao AI automatically outputs standardized, well-structured PRDs covering page logic, functional specifications and interactive workflows.

All auto-generated documents support free editing and real-time multi-person collaboration. The AI intelligently consolidates revision feedback from every team member to smooth cross-team coordination. Product managers can therefore devote more energy to in-depth business logic thinking instead of mechanical document formatting work.

Commercialization Model: Free Trials + Credit-Based Payment

Modao AI adopts a hybrid monetization model combining free trial access and credit consumption: New registered users receive 100 complimentary AI credits to test core features including AI prototype generation. Paid options include:

  1. Premium annual membership: ¥397 per year, with 1,000 bonus AI credits
  2. Lifetime membership: ¥1,399 one-time payment, with 3,000 bonus AI credits
  3. Standalone credit bundles: ¥68 for 3,000 credits; ¥168 for 10,000 credits

Official transparent credit deduction rules:

  • Fast generation mode: 100 credits per run
  • In-depth high-fidelity mode: 200 credits per run
  • Multi-page generation: 60–120 credits per single page

Important reminder: Every iterative dialogue and adjustment consumes additional credits. Users are advised to fully review billing rules before heavy use to avoid unexpected credit deductions. Modao also offers team and enterprise editions with flexible seat procurement for multi-staff collaboration scenarios.

Industry Insight: AI Amplifies, Rather Than Replaces, Product Managers

The launch of Modao AI signals profound reshaping of end-to-end product design workflows driven by AI. On one hand, AI prototype generation drastically speeds up draft creation, compressing framework building from multiple days to minutes. On the other hand, numerous industry analysts note AI-generated prototypes seldom achieve perfect results on the first try. Product managers must master effective prompt crafting and design judgment to refine outputs via multiple rounds of dialogue and manual tweaks.

In short, AI does not replace product managers — it multiplies the productivity of outstanding practitioners. Drafts that once took three full days to complete now render in 30 seconds. The core value of product managers shifts toward deep business comprehension, accurate user demand insight and precise control over AI-generated assets.

Technical Backbone: Native Integration With ByteDance’s Doubao LLM Ecosystem

As part of ByteDance’s technology ecosystem, Modao AI runs on the Doubao Large Model 1.6 series, granting inherent strengths in Chinese semantic understanding and localization for product design scenarios. Unlike overseas tools such as Figma with subpar Chinese environment compatibility, Modao AI is fully tailored to the daily workflows of domestic product managers and designers.

Many development teams have already deployed Modao AI auto-generated code directly into production environments, with proven practical value especially for standardized B-end back-office and e-commerce management systems.

Whether you are a product manager needing fast prototypes to validate ideas, a designer aiming to streamline handoff with front-end teams, or a new practitioner learning AI-powered product design tools, this AI prototyping assistant deeply integrated with China’s domestic design ecosystem and powered by the Doubao LLM is well worth exploring on its official website. Redeem your 100 free credits to experience Modao’s lightning-fast workflow that turns creative ideas into complete prototypes in just 30 seconds.


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