Kaitan Sun

AI for human becoming

I’m a Founder and AI Builder in the Bay Area, and a former Data Scientist. I’m building the Personal AI for intentional human growth—it models your evolving self over time and co-shapes the person you’re becoming—working toward human–AI co-evolution.

Co-presence Contact me

Self-Knowledge

The evolving self.

Behavior Design

The conditions for change.

Vision Engineering

Possibility made tangible.

AI

Intelligence in evolution.

My Vision

Co-living with AI—for more fulfilling lives.

Selected services

Ways I can help

For individuals

Kaitan facilitating a Self-Understanding Lab in Santa Clara

Direction & meaning

Find your personal direction

Make sense of your past and present, and find a direction worth moving toward.

Where you've beenLife Curve
Who you are nowAI Memory Analysis
Where you're goingIkigai + AI

Two adults mapping a recurring relationship pattern in a guided conversation

Conflict & connection

Repair a stuck relationship

See what keeps you stuck, and find a practical way back to each other.

See the real conflictCBT + AI
Know your patternLoop Analysis & Attachment Theory
Make change easyBehavior Design

For businesses

Kaitan with a company team after facilitating a practical AI adoption discussion

End-to-end solution

Build the right AI solution

From the real problem to a working solution your team can actually use.

Automate workAI Agents
Solve the real problemAI Solution
Designed and builtProducts & Sites

An advisor explains patterns in a personalized report during a focused debrief

AI-assisted root-cause analysis

Analyze a complex situation

Cut through the noise to what's really driving it—and what to do next.

We talk it throughGuided interview
Equip AI with expertiseDomain Expertise
You get answersReport + next steps

Selected product work

What I built

Life Curve — a visual timeline of a life

Life timeline

Map Your Life

See the turning points and recurring patterns across your life.

Get access

AI voice-journaling app screens for speaking freely, finding recurring patterns, and exploring personalized insights

AI voice journal

Turn Your Voice Into Insight

Talk freely. AI listens across your voice journal to reveal recurring themes, needs, and next steps.

Get access

Circle — a personal social network shown as an interactive galaxy of people and connections

Personal network

Your Social World, Visualized

See who feels close, how your circles overlap, and which relationships may need more care.

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Goal System mobile app screens for planning a goal, completing steps, and tracking progress

Behavior change

Reach Your Goal

Turn an important goal into small actions you can sustain.

Get access

Pixel Life — a retro AI simulator for exploring the possible lives of different people

AI life simulator

Play Through Different Lives

Enter AI-generated lives and see how different people, choices, circumstances, and chance shape what happens.

Get access

Selected speaking

Speaking

On AI, self-understanding, and human agency.

Kaitan Sun giving a talk about career growth and team dynamics at Stanford University

Kaitan with a company team after an AI training session for their business

Kaitan being interviewed online about using AI to understand life patterns

Kaitan in a seated interview conversation about the AI co-presence initiative

Kaitan presenting a case on a university stage

Kaitan speaking online about AI and wellness in the U.S. market

A wide view of Kaitan speaking about staying grounded amid anxiety about the AI era at Stanford University

Kaitan speaking among an audience with a microphone

Kaitan serving as piano accompanist for a university choir competition

Kaitan with speakers and builders after an event on how to monetize with AI

Kaitan pitching a product at a UC Berkeley event

Kaitan sharing AI insights during a technical exchange in Tokyo

Kaitan interviewing a guest about trauma healing

Writing

The Human Weight

My writings on AI and consciousness.

Read on Substack

Apr 5, 2026

The Friction Stack: Why Smart People Still Don’t Start

12 forces between knowing what to do and actually doing it

Mar 5, 2026

The 15% Soul

Why We Must Rethink Our Relationship with AI

Feb 18, 2026

"My First 48 Hours"

My AI Asked Me to Publish This

Jan 28, 2026

The Compassion Patch

Overcoming RLHF "Grievance" in LLMs

Kaitan Sun speaking on career growth and team dynamics

Kaitan Sun

Let’s connect

Start a conversation.

Tell me what you want to change or build—for yourself or your business.

Get in touch contact@kaitansun.com