We Make AI Visible

At school · At home · At work

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Before writing. Before cities. Before civilization itself — humans taught.

This is who we are. Homo docens. The teaching species.

Our mission is to accelerate human learning with technology.
Now that people learn and work with AI, we make that work visible,
so schools, families, and companies can trust it and use it more.

One technology.
School, home, and business.

AI is now part of how people learn, and more and more part of how they get hired. Our Make AI Visible technology runs through four products, each showing how people work with AI to the ones who need to see it: teachers in the classroom, parents at home, and hiring teams at companies.

School

Teachers see how students learn and work with AI.

Classting AI · Cognity
Home

Parents see what their child asks and makes.

Jelo
Business

Hiring teams see how applicants work and use AI.

CoSprint
School · Korea K-12

Classting AI

An integrated AI education platform for Korean schools. AI Learning runs diagnostic assessments and adaptive practice on our CLST knowledge-tracking engine, with an AI tutor built into question review. AI Sandbox brings generative AI and vibe coding into class assignments. AI Writing supports Korean and English writing and reads essay-type answers against the teacher's own rubric, while the final score stays with the teacher. All three run on one platform, adopted by 4,600+ paying schools.

School · Global

Cognity

Cognity = Cognitive + Visibility
See how your students think and learn with AI. An AI collaboration workspace for schools and universities. Cognity records every prompt, revision, and decision a student makes with AI, so educators can assess the process instead of guessing from the final text.

Home · Kids & parents

Jelo

Jelo by Cognity
First AI for big thinkers. An AI learning helper for kids. A child asks about anything and turns ideas into pictures and apps of their own, and homework help never writes the finished work for them. Parents decide what Jelo can do, and get a dinner question every evening and a letter every Monday.

Business · Hiring

CoSprint

Make Talent Visible
See how applicants work and use AI. CoSprint turns a problem your team actually faced into a task for applicants, then shows each person's job skills, company fit, and way of working, with evidence quoted from what they did. An AI hiring solution for CEOs, HR, team leads, and recruiters.

Technology that makes
AI visible.

01

AI Governance — Make AI Visible

Don't ban it. Make it visible. Then encourage it.

The problem was never AI itself — it was not knowing how people were using it. When every prompt, every revision, every decision becomes visible, the conversation shifts from "should we allow AI?" to "how do we use AI even more?" Schools stop banning and start embracing. Families feel safe. Enterprises and governments adopt AI with confidence — because what's visible is trustworthy.

02

AI Orchestration — Any AI, Fit for Purpose

You choose the AI. We make it fit.

Sovereign AI, GPT, Claude, Gemini — we don't build AI models. We build the layer that runs on top of any of them and fits the AI to where it is used: curriculum-aligned and teacher-guided at school, within limits parents set at home, grounded in a team's real problems at work. An organization brings the AI it trusts, and we make it fit.

03

Real-time Adaptive Intelligence

91.5% accuracy — the world's most advanced knowledge tracking, wired live into an LLM.

Our Cognitive Learner State Tracking (CLST) engine predicts learner mastery in real-time and feeds directly into the LLM, creating a continuously adapting loop: what you know → what you need → how you learn it best. Not static content delivery — a living tutor that evolves with every interaction — for any learner, any subject, any moment. Published at EMNLP 2024.

World-class validation.

2024
EMNLP 2024
Cognitive Learner State Tracking published at a top-tier NLP conference
2023
Korea Ministry of Education — Grand Prize
Korea's highest government recognition for educational technology
2018
Taiwan Ministry of Education — Minister's Award
Recognized for contribution to digital education in Taiwanese schools
2014
UCLA CRESST — Research Partner
Joint research with UCLA's National Center for Research on Evaluation, Standards, and Student Testing
2012
Global K-Startup — Excellence Award & Google Special Prize
Inaugural recognition at Korea's flagship startup competition

14 years of accelerating learning.

2012
The Beginning
Founded by CHO Hyun-gu, YOO Jae-sang, and YOON Yo-haan. Launched classting.com — a social network replacing traditional LMS for K-12 classrooms. Won K-Startup Excellence Award and Google Special Prize.
2013 – 2015
Global Recognition
Raised investment from Softbank Ventures, Samsung Ventures, and Korea Development Bank. Cited by Eric Schmidt and U.S. Secretary of State John Kerry as a leading global startup from Korea.
2016
AI Begins
Launched Learning Card — Korea's first AI-powered adaptive learning service.
2019
Impact Investment
Recognized for its positive global impact and high growth potential. Secured impact investment from Mistletoe, founded by Taizo Son — now CT Corp's largest investor and advisor.
2021
Scaling Up
Launched Classting AI — an integrated AI education platform for schools. Raised investment led by Atinum Investment, with Korea Investment Securities, Mistletoe, and others. Adopted by 4,600+ paying schools across Korea.
2025
CT Corp.
Rebranded from Classting Inc. to CT Corp. — Cognitive Technologies. A new name for the next chapter: from a classroom platform to a global learning acceleration company.
2026
School, Home, and Business
Classting surpasses 10M users — 430K teachers, 5.3M students, 3.4M parents, and more. Launched Cognity for schools and universities worldwide, Jelo for families, and CoSprint for hiring teams.
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NPS (SaaS avg. 36 · EdTech avg. 47)
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What's next

Learning doesn't end
at graduation.

We proved that AI can accelerate mastery in classrooms — 10 million learners, 91.5% prediction accuracy, the world's most advanced knowledge tracking engine. Now the same technology applies everywhere humans learn.

Schools ▶ Homes ▶ Businesses ▶ Everywhere

When learning accelerates

A medical student
Masters surgery in 3 years, not 7 — and saves lives years sooner.
A child in rural Kenya
Learns at the same pace as a student in Seoul — because geography stops being destiny.
A factory worker
Retrains in weeks, not years — and keeps her family's future intact.
A refugee
Speaks a new language in months — and rebuilds a life.
A 45-year-old engineer
Becomes an AI researcher — because it's never too late to learn.

Every human who wants to master something —
every skill, every language, every profession.
10 million learners were the proof.
1 billion is the next goal.

The people we're looking for.

01

Fast Learners, Deep Thinkers

You're not intimidated by what you don't know — you're energized by it. You cut through noise to the essence, learn fast, and apply faster. AI isn't just a tool to you — it's a force multiplier you wield to lift the entire team's output.

02

Mission-Driven Ownership

You believe accelerating human learning is the highest-leverage way to improve the world. That belief doesn't stay abstract — you define problems before they're assigned, step into ambiguous territory, and fill every gap the mission demands.

03

Warm, Yet Relentless

You lead with goodwill and assume positive intent. You also set your own high bar and prove your value with numbers, not narratives. Genuine care for your team and sacred deadlines — we don't think these are contradictions.

04

Direct, Constructive

You're customer-obsessed. Feedback is given directly, never behind someone's back. You lead with solutions, not complaints. Decisions and accountability have hierarchy — but communication never does.

"The mission is to accelerate human learning.
We're looking for people who feel that in their bones."