TECHNOLOGY

Technology & Data

Our core asset is Korean language education data, normalized into a form an AI model can learn from directly. See how we built it.

THE PROBLEM

We started out generating lesson plans with GPT-4o

The more lesson plans we generated, the further they drifted from the learners’ proficiency levels. So we measured it ourselves against the National Institute of Korean Language standard curriculum.

Level 1
0.00%
Level 2
0.00%96.6%
Level 3
0.00%
Level 4
0.00%

Model measured: GPT-4o · Proficiency-level agreement (mIoU) against the National Institute of Korean Language standard curriculum · in-house measurement

The reason was simple: no existing dataset included reliable proficiency-level classifications. So we built one.

SOURCE

Research papers, textbooks, the
national curriculum. That is where we began

Assembled domain by domain by researchers trained in Korean language education

STEP 1 · VOCABULARY

0entries

Vocabulary

All levels 1 to 6 · 26,586 instances · 26,586 semantic classes

STEP 2 · GRAMMAR

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Grammar

755 standard forms + 24,452 inflections · validated automatically by our patented method

STEP 3 · TOPIC

0categories

Topics

2,775 unit mappings · 343 level-sequence entries

STEP 4 · FUNCTION

0categories

Functions

Communicative function categories · 5,610 unit mappings · 205 level-sequence entries

STEP 5 · CROSS MAPPING

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Cross-mapping

Vocabulary × grammar, vocabulary × function, vocabulary × topic, function × grammar and more. Separate lists become one graph

TOTAL

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Normalized Korean education data

INTELLECTUAL PROPERTY

Intellectual property

Registered

Method for evaluating pronunciation accuracy based on Korean phoneme similarity

No. 10-2966195
Registered 2026.05.13

Registered

Method and system for automated validation of Korean grammar data

No. 10-2999681
Registered 2026.07.30

MCP SERVER

We deliver connected data to our products

Korean language data becomes useful to real learners only when all domains are connected. We serve that data through an MCP server and build products for non-native speakers of Korean on top of it.

Anything else you would like to know?

We welcome enquiries about partnerships and adoption.

Contact us