Our Mission

KA21 AI Toolbox is led by Man Wu and jointly maintained by 27 professionals from the Kazike KA21 community, each with a different background. We also appreciate the article support from other AI creators and developer friends. We always start from the user perspective, personally test each AI tool, and evaluate, review, and recommend it based on real practice from our own fields.

We want KA21 to become the “Michelin Guide” of AI tool reviews, so our slogan is: “Bottom-rank elimination. We keep only 100 AI workhorses that are actually worth using.” Slightly heavy on the grindset, but that is the point.

Since the site launched in February 2025, we have stayed hands-on, kept testing continuously, and spoken with real experience instead of empty claims.

Team Members

Man Wu

Beijing

AI-Native Web BuilderSenior English Teacher Training Expert

Specialty

Senior English Teacher Training Expert

Bio

Vibe coder behind the KA21 AI Workhorse Library. A relentless tester and sharer who has reviewed more than 200 AI tools. She represented China and delivered a full English talk at an education conference hosted by the Education Section of the British Embassy on AI-powered English teaching. Ninety-five percent of her work starts with AI.

MBTI: ESFP

Nickname: General / Foreman

Skills

Coding

Core domain skill

English Teacher Training

Supporting skill

AI-Powered English Teaching

Supporting skill

AI Tools

CodexCursorClaudeJimeng

Personal Traits

✨Truth-Seeking Innovation🧩Cross-Disciplinary Builder🤝Warm and Welcoming🧠Extremely Curious

Official Account

English Teaching Lab

Sanjin

Zhengzhou

Operations EngineerCore Code Contributor to KA21 Directory

Specialty

Core Code Contributor to KA21 Directory · Enterprise Software Operations Engineer

Bio

Anything can be rebuilt with AI.

MBTI: ISTJ

Nickname: Cool

Skills

Enterprise Software Operations

Core domain skill

Cursor-Based Development

Supporting skill

AI Tools

CursorChatGPTGemini

Personal Traits

🔭Technical Explorer🔄Systems Thinker⚡Efficiency First📚Lifelong Learner

Official Account

Sanjin's AI Toolbox

Jinyu

Zhanjiang, Guangdong

Independent Full-Stack DesignerImage Prompt Engineer

Specialty

Image Prompt Engineer

Bio

Over the past year, I have tried hundreds of the newest AI products and built a sharp eye for subtle product details. I have designed multiple agents and educational workflows around user needs and image trends, and I am now deeply focused on AI animated short-form storytelling.

MBTI: INFP

Nickname: Goldfish

Skills

UI Product Design

Core domain skill

AI Animated Short Creation

Supporting skill

Image Prompt Engineering

Supporting skill

AI Tools

TraeLovartGeminiClaudeJimengDoubao

Personal Traits

🔭Technical Explorer💡Innovative Thinker🎯User-Centered📚Lifelong Learner

Official Account

Mingming Box

Irene

Shenzhen

Visual DesignerBrand Design

Specialty

Brand Design · AI Visual and Video Creation

Bio

I observe the world through a designer's eye and rebuild imagination with the brush of AI.

MBTI: INFJ

Nickname: Mao Mao

Skills

Brand Design

Core domain skill

AI Visual and Video Creation

Supporting skill

AI Tools

ChatGPTMidjourneyJimeng

Personal Traits

💭Creative Thinker🔍Detail-Oriented👁️Strong Visual Sensibility🎨Innovative Aesthetic

Official Account

Irene A-Zhen

Loki

Beijing

Head of K-12 Video EducationAI Visual and Video Tool Reviews

Specialty

AI Visual and Video Tool Reviews · Curriculum Design · Prompt Writing

Bio

By day I make content, by night I test tools. If I'm not writing, I'm watching a show. If I'm not testing, I'm on the road thinking up new ideas.

MBTI: ISTJ

Nickname: Loki / Little Raccoon / Little Spark

Skills

AI Visual and Video Tool Reviews

Core domain skill

Curriculum Design

Supporting skill

Prompt Writing

Supporting skill

AI Tools

ClaudeChatGPTGeminiLovartHatchJimeng

Personal Traits

🧭Explorer's Mindset🔭Technically Curious✨Creative in Practice📢Generous with Knowledge

Official Account

Cyber Raccoon Loki

Uncle Wa

Shanghai

Head of New Media Livestream Technology / AI Digital Content StrategistNew Media Livestream Technology

Specialty

New Media Livestream Technology · AIGC Content Innovation · Audio and Video Production

Bio

I was among the first to apply text-to-image, virtual humans, and other AI tools to public-sector and enterprise promotional video production, building an efficient workflow from text and images to video and improving production efficiency by more than 50 percent.

MBTI: ISTJ

Nickname: Uncle Wa / Fried Egg

Skills

Large-Scale Livestream Planning and Execution

Core domain skill

OBS (Expert)

Supporting skill

AIGC Content Innovation

Supporting skill

AI Tools

JimengKlingVidu

Personal Traits

⚙️Highly Technical💫Innovative in Execution⏱️Efficiency Booster🛠️Solution-Oriented

Official Account

Uncle Wa AI Explorer

Labi

Shenzhen

Digital Transformation Project ManagerInformation Systems Implementation

Specialty

Information Systems Implementation · AI Visual Creation

Bio

An information systems workhorse and AI learner, obsessed with AI visual creation and happy to share practical reviews and beginner-friendly tutorials.

MBTI: INFJ

Nickname: Labi

Skills

Information Systems Implementation

Core domain skill

AI Visual Creation

Supporting skill

AI Tools

JimengLovartChatGPTGeminiClaude

Personal Traits

🔄Systems Thinker📋Strong Project Management📡Good at Simplifying Tech📢Generous with Knowledge

Official Account

Tree Whisper Pastoral

Seele

Beijing

Data AnalystEducation and Training

Specialty

Education and Training · AI Training

Bio

I use data to sketch reality, AI to redesign workflows, and language to carry human warmth.

MBTI: INTJ

Nickname: Doubao / Border Collie

Skills

Data Analysis

Core domain skill

Data Visualization

Supporting skill

Data Mining

Supporting skill

AI Tools

Feishu BitableimaMonicaChatGPT

Personal Traits

📊Data-Driven🔭Technical Explorer🌱Growth-Oriented🧱Practice-Focused

Official Account

One Thought Unleashed

William

Ningbo

Overseas Freight Operations SpecialistShipping and Logistics

Specialty

Shipping and Logistics · AIGC Content Creation · AI Theory and Principles

Bio

Holder of official AI certifications from Nvidia, Microsoft, and IBM. A mentor for both universities and companies, and a member of a provincial AI association. Gentle as jade when needed, sharp as a blade when it counts.

MBTI: INFJ

Nickname: Octopus

Skills

Shipping and Logistics

Core domain skill

AIGC Content Creation

Supporting skill

AI Theory and Principles

Supporting skill

AI Tools

ByteDance and Alibaba AI tools

Personal Traits

🏆Professionally Certified⚖️Balances Theory and Practice🧙‍♂️Strong Teaching Instinct📚Lifelong Learner

Official Account

Octopus William

Mr. Feng

Nanjing

Education CreatorEducation

Specialty

Education · AIGC Content Creation

Bio

Let AI handle AI problems.

MBTI: INTJ

Nickname: Mr. Feng

Skills

Education

Core domain skill

AIGC Content Creation

Supporting skill

AI Tools

GeminiGPT

Personal Traits

🌀Witty and unpredictable🔬Hardcore AI Reviewer✨Motto: "If you learn slowly enough, you never have to learn anything."

Bagel

Beijing

Head of AI Education ProductsAI Education

Specialty

AI Education · AIGC Content Creation · Product Design

Bio

An AI product manager people tend to like right away. Uses AI with effortless fluency. Possibly the best AI user among product managers who can also dance.

MBTI: ENTP

Nickname: Bagel / Product Designer / Dance Creator / Pet Blogger

Skills

AI Education

Core domain skill

AIGC Content Creation

Supporting skill

Product Design

Supporting skill

AI Tools

ClaudeDoubaoHatch Canvas

Personal Traits

💡Innovative Thinker🎨Strong Design Sense🎓Education-Minded🧩Cross-Functional Integrator

Official Account

AI Grievance Guide

Jinwei

Suzhou

Product Structural Designer3D Printing

Specialty

3D Printing · AIGC Content Creation

Bio

An AI learner, a curiosity-driven builder, and an experienced 3D printing practitioner.

MBTI: INTJ-A

Nickname: Raven

Skills

3D Printing

Core domain skill

Product Structural Design

Supporting skill

AIGC Content Creation

Supporting skill

AI Tools

TripoClaudeChatGPTGeminiMonicaLovartDoubao

Personal Traits

⚙️Always Refining the Craft💫Innovative in Execution🧩Cross-Functional Integrator🧱Practice-Focused

Official Account

The Beautiful World of Tech

Rongrong

Tianjin

Human Resources ManagerAIGC Content Creation

Specialty

AIGC Content Creation · Human Resources Management

Bio

An AIGC enthusiast exploring how AI can support parenting and family education.

MBTI: INFJ

Nickname: Rongrong

Skills

Human Resources Management

Core domain skill

AIGC Content Creation

Supporting skill

Parenting Education

Supporting skill

AI Tools

MonicaClaudeGeminiDoubaoTiangong

Personal Traits

💡Innovative Thinker🎓Passion for Education❤️Human-Centered🔭Technical Explorer

Official Account

Golden Branch AI Parenting Notes

Yoji

Guangzhou

Visual Designer, Social Media OperatorAI Visual and Video Creation

Specialty

AI Visual and Video Creation · Social Media Content Creation

Bio

An AI enthusiast and learner who keeps exploring fresh ways to merge design, social content, and AI.

MBTI: INFJ

Nickname: Yoji

Skills

Visual Design

Core domain skill

Social Media Operations

Supporting skill

AI Visual Creation

Supporting skill

AI Tools

ChatGPTJimengKlingDoubao

Personal Traits

💡Innovative Thinker🎨Strong Design Sense🌱Growth-Oriented🎬Creative Application

Official Account

Workplace AI Know-It-All

Feifei

Guangzhou

E-commerce Visual Planner / Fashion Visual MerchandiserAIGC Content Creation for E-commerce

Specialty

AIGC Content Creation for E-commerce · AI Creative Exploration

Bio

An AIGC enthusiast deeply curious about frontier AI, especially the innovative use of AIGC in e-commerce visuals. I keep learning and practicing AI tools with the goal of becoming a specialist in AI-powered creative design.

MBTI: INFJ

Nickname: Feifei

Skills

E-commerce Visual Planning

Core domain skill

Fashion Visual Merchandising

Supporting skill

AIGC Content Creation

Supporting skill

AI Tools

Coze SpaceLibLib AIDoubaoJimengLovartNotebook LMDeepSeek

Personal Traits

💭Creative Thinker🔭Technical Explorer🌱Growth-Oriented🧱Practice-Focused

Official Account

Feifei Notes

Tangshui

Beijing

AI Product ManagerAI Product Management

Specialty

AI Product Management · Coding · Vibe Coding

Bio

I am Tangshui, a second-year engineering graduate student at a 985 university and an AI product manager. After using vibe coding to close the loop on multiple products, I became convinced that coding is not just a tool. It is an extension of product thinking.

MBTI: ENFP

Nickname: Tangshui / Melting from Heat

Skills

AI Product Design

Core domain skill

Product Development with Vibe Coding

Supporting skill

Product Entrepreneurship

Supporting skill

AI Tools

Claude Code

Personal Traits

🚀End-to-End Product Thinking💡Builder and Entrepreneurial Spirit🌱Continuous Iteration and Growth🧠Cross-Domain Synthesis

Official Account

Open Tangshui

倒放

杭州

AI病友短视频

Specialty

短视频 · 音乐

Bio

需要脑暴创意突围时可能帮得到，但求别逼太急，不然脑子短路。

Skills

短视频创作

Core domain skill

音乐创作

Supporting skill

AI Tools

抖音音乐开放平台豆包GeminiCodex

Personal Traits

✨感谢 ka21 佬们提携✨创意脑暴✨灵感突围

Official Account

倒放

计育韬

上海

图书作者 / 交互动画设计师交互设计

Specialty

交互设计 · 动画设计

Bio

SVG AttributeName 白名单制定人，起草《中小商业企业协会融媒体 SVG 交互设计技术规范》。

Skills

交互设计

Core domain skill

动画设计

Supporting skill

SVG 规范制定

Supporting skill

AI Tools

Cursor即梦Gemini

Personal Traits

✨长期主义✨技术表达✨规范建设

Official Account

JZCreative

白苏Elliot

上海

Mew.Design 联创AI agent

Specialty

AI agent · 出海 · 产品

Bio

干活博主，曾单人手搓百万用户 AI agent。

MBTI: INTJ

Skills

AI Agent

Core domain skill

出海产品

Supporting skill

产品设计

Supporting skill

AI Tools

CodexClaude CodeOpenCode

Personal Traits

✨现在是最好的时代✨实干派✨长期搭建

Official Account

白苏Elliot

何先森Kevin

北京

AIGC创作者写作

Specialty

写作 · 设计 · 摄影 · 品牌策划 · 自媒体运营

Bio

专注于 AIGC 艺术、AI 创新应用、AI 商业观察与个人成长分享。

Skills

写作

Core domain skill

品牌策划

Supporting skill

自媒体运营

Supporting skill

AI Tools

OpenClawGeminiNotebookLMLovartTapNow

Personal Traits

✨创意观察✨商业敏感度✨持续分享

Official Account

AIGC创意猎人

洛小山

珠海

AI 产品经理AI 工程化

Specialty

AI 工程化 · AI 模型评估

Bio

你学习 AI 的搭子。

Skills

AI工程化

Core domain skill

AI模型评估

Supporting skill

AI Tools

CursorXSCT

Personal Traits

✨陪伴学习✨产品视角✨方法论导向

Official Account

洛小山

酸梅煮酒

重庆

纪录片导演 / 剪辑师AI视频

Specialty

AI视频 · 纪录片 · 摄影 · vibecoding

Bio

纪录片独立制作者，AI实干家，一个人一支队伍。

Skills

纪录片制作

Core domain skill

剪辑

Supporting skill

AI视频创作

Supporting skill

AI Tools

CodexChatGPT可灵即梦LovartGemini

Personal Traits

✨一个人就是一支队伍✨独立制作✨实干派

Official Account

酸梅煮酒

TATALAB

上海 / 杭州

AI 自媒体博主 / 独立开发者AI设计与生图

Specialty

AI设计与生图 · 创意视频TVC · vibecoding创意项目开发

Bio

从宝妈到小红书 AI 科技博主，拥有 1.4w+ 粉丝，只用了一年，践行 learn in public，一起学习吧～

MBTI: ENTJ

Skills

AI设计与生图

Core domain skill

创意视频TVC

Supporting skill

独立开发

Supporting skill

AI Tools

ObsidianClaude即梦Lovart秒哒

Personal Traits

✨你的 AI 时代课代表✨公开学习⚡执行力强

Official Account

TATALAB

黄啊码

广州

创业公司 CTOAI Coding

Specialty

AI Coding · 智能体工作流定制

Bio

人工训练师、人工智能讲师，擅长企业业务梳理和 AI 转型。

Skills

AI Coding

Core domain skill

智能体工作流

Supporting skill

企业 AI 转型

Supporting skill

AI Tools

Claude CodeCodexCursor即梦

Personal Traits

✨跟 AI 相处久了更像 AI 分身✨企业落地✨系统梳理

Official Account

黄啊码

云天AI探索

北京

AI产品经理 / 极限运动达人AI编程

Specialty

AI编程 · AIPPT · AI出海 · 创意探索

Bio

探索 AI 生产力革新，放大被低估的价值。

MBTI: ENFP

Skills

AI编程

Core domain skill

AIPPT

Supporting skill

AI出海

Supporting skill

AI Tools

GeminiCodeBuddyClaude CodeYouMindListenHub

Personal Traits

✨极限运动✨价值放大器✨创意探索

Official Account

云天AI探索

Scott Tu

Beijing

Founder of Ruiyi Zhineng / Host of Finance AI SalonAI Project Management

Specialty

AI Project Management · Financial AI Implementation · Germany Insights · Training and Speaking

Bio

Focused on vibe-style project management, with seven years in Germany and eight years of Big Four and finance experience.

Skills

AI Project Management

Core domain skill

Financial AI Implementation

Supporting skill

Training and Speaking

Supporting skill

AI Tools

ClaudeCodexXiangqi AI Project ManagementNotebookLM

Personal Traits

✨Finance Lens✨Project Execution✨Global Perspective

Official Account

Tu Hui

Bill

Beijing

AI Industry AnalystFrontline AI Industry Insights

Specialty

Frontline AI Industry Insights

Bio

An AI industry analyst with a management consulting background who keeps unpacking how the AI industry is actually evolving.

MBTI: ESFP

Skills

AI Industry Research

Core domain skill

Trend Analysis

Supporting skill

Consulting Research

Supporting skill

Personal Traits

✨Industry Observation✨Signal Over Noise✨Consulting Lens

Official Account

Bill AI New Vision