Toronto · Open to research & opportunities

I build systems that think with evidence.

I’m Kai Zang — a University of Toronto Computer Science student exploring how retrieval, reasoning, and thoughtful product design can turn AI into something people can actually trust.

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The best AI doesn’t just sound intelligent.

It knows where its answer came from.

That belief shapes how I build: start with evidence, design for clarity, and make every technical choice serve a human need.

Ask Kai · RAG AI Agent

An agent built to retrieve before it replies.

Most AI demos begin with a model. Mine begins with a question of trust: how can an answer remain useful, private, and grounded in real evidence?

ask-kai / retrieval trace Live
Q

What makes Kai’s AI work more than a chatbot?

01
Understand Translate intent into a searchable query
02
Retrieve Semantic + keyword search across trusted sources
03
Re-rank Surface the context that best answers the question
04
Ground Generate a concise response anchored in evidence
Grounded answer

It doesn’t rely on a model’s memory alone. It finds relevant evidence, ranks it, and uses that context to produce an answer you can trace.

3 sources Context verified
01

Grounded by design.

RAG connects every answer to a controlled knowledge base instead of trusting fluent guesses.

02

Built as a system.

FastAPI, PostgreSQL, retrieval logic, and deployment come together as one end-to-end product.

03

Made for people.

The goal isn’t AI for its own sake—it is faster access to clear, relevant, verifiable information.

Full case study Coming soon

From algorithm
to experience.

I like building across the stack— understanding the algorithm, shaping the product, and carrying it all the way to a usable interface.

02 · Product Engineering

Travel,
orchestrated.

One app from inspiration to itinerary.

A full-stack iOS travel platform combining intelligent trip planning, backend services, secure payments, and structured data into one polished end-to-end experience.

Xcode FastAPI Java PostgreSQL Stripe
Explore the product
Travel app detail screen
02

Your detail
screenshot

Travel app main screen
Discover Somewhere
worth going.
Drop your app
screenshot here

03 · Game AI

Teaching a machine to think ahead.

A 10 × 10 Gomoku engine that searches adversarial possibilities efficiently, using alpha–beta pruning and evaluation heuristics to turn strategy into code.

Python Adversarial Search Alpha–Beta Pruning
Kai's robotic arm research at Beijing Institute of Technology
Computer Vision
OBJECT · 98%

Add your BIT research photo here.

Beijing Institute of Technology

Giving a robotic arm the ability to see.

I explored how image processing and object detection can translate visual input into physical action for a biomimetic robotic arm—an early experience that made the connection between algorithms and the real world tangible.

Focus Computer Vision · Robotics
Toolkit Python · OpenCV · NumPy
View research certificate

Built on strong
foundations.

Computer Science Specialist with interests in AI, computer vision, and dependable software systems.

Download résumé

Education

2025 — 2029

University of Toronto
St. George

Computer Science Specialist

A rigorous foundation across programming, proofs, linear algebra, probability, and software design.

CSC110 / 111 MAT137 MAT223 STA130
3.7 /4.0 CS-course GPA

Experience & Leadership

Support

Library & Help-Desk

Helped students and staff solve everyday technology problems—building patience, clarity, and a service mindset.

Leadership

Student Events

Organized activities and coordinated peers, turning ideas into shared, well-run experiences.

Research

Computer Vision & Robotics

Applied image processing and object detection to a biomimetic robotic arm at Beijing Institute of Technology.

Technical Toolkit

01

Languages

Python · Java · JavaScript · SQL · HTML/CSS

02

Backend

FastAPI · Java · REST APIs · PostgreSQL

03

AI & Data

RAG · Semantic Retrieval · Game AI · OpenCV · NumPy

04

Product

Xcode · Stripe · iOS Development · API Integration

05

Infrastructure

Git · GitHub · Cloudflare · Local Deployment

06

Exploring

Spring Boot · Computer Vision · Distributed Systems

Grounded AI Computer Vision Thoughtful Products Software Systems Grounded AI Computer Vision Thoughtful Products Software Systems