Korean NLP API & Spell Checker Pricing

Subscription plans

Current plan

Free

Get started at no cost

KRW 0 / month

Monthly eojeol quota

50,000

≈ about 5,000 sentences · about 1 book of text

* Morphological analysis gets 10x the eojeol quota

Custom dictionaries: 1
Morphological analysis (AnalyzeSyntax)
Tokenizer (Tokenize)
Spell checker
Automatic spacing
Cloud API

🎁 1-month free trial

Standard

For individuals and small teams

KRW 9,900 / month

First month free

KRW 8,250 per month when billed annually (about 17% off)

Monthly eojeol quota

500,000

≈ about 50,000 sentences · about 10 books of text

* Morphological analysis gets 10x the eojeol quota

File uploads up to 10 MB
Custom dictionaries: 20
Morphological analysis (AnalyzeSyntax)
Tokenizer (Tokenize)
Batch morphological analysis (AnalyzeSyntaxList)
Spell checker

🎁 Log in for a free trial

Business

For teams with heavy usage

KRW 49,000 / month

KRW 40,833 per month when billed annually (about 17% off)

Monthly eojeol quota

3,000,000

≈ about 300,000 sentences · about 60 books of text

* Morphological analysis gets 10x the eojeol quota

File uploads up to 50 MB
Custom dictionaries: 100
Morphological analysis (AnalyzeSyntax)
Tokenizer (Tokenize)
Batch morphological analysis (AnalyzeSyntaxList)
Spell checker

Enterprise

On-premise and dedicated support

Custom quote

We quote a price that fits your organization

Monthly eojeol quota

Unlimited

* Morphological analysis gets 10x the eojeol quota

File uploads up to 500 MB+
Unlimited custom dictionaries
On-premise installation
Dedicated server / custom SDK
Dedicated manager & on-site support

Contact sales

Short-term pass

A prepaid pass for occasional use. Buy one when you temporarily run out of your monthly quota. If you use the service regularly, a subscription is always cheaper.

200,000 pass

200,000 eojeol

≈ 4 books of text

KRW 5,000

KRW 0.025 per eojeol

400,000 pass

400,000 eojeol

≈ 8 books of text

KRW 10,000

KRW 0.025 per eojeol

2,000,000 pass

2,000,000 eojeol

≈ 40 books of text

KRW 50,000

KRW 0.025 per eojeol

8,000,000 pass

8,000,000 eojeol

≈ 160 books of text

KRW 200,000

KRW 0.025 per eojeol

Compare plans

Free

Standard

🎁 Free trial

Business

Enterprise

Contact sales

Price and limits

Monthly price

KRW 0

KRW 9,900

KRW 49,000

Contact sales

Annual billing (per month)

KRW 8,250

KRW 40,833

Contact sales

Annual billing (per year)

KRW 99,000

KRW 490,000

Contact sales

Usage and performance

Eojeol quota (monthly)

50,000 (1 book)

500,000 (10 books)

3,000,000 (60 books)

Unlimited

Max custom dictionaries

100

Unlimited

Core features

Morphological analysis (AnalyzeSyntax)

Tokenizer (Tokenize)

Batch morphological analysis (AnalyzeSyntaxList)

Spell checker

Automatic spacing

Automatic word joining

Automatic sentence splitting

Service options

Cloud API

Streaming support

Context-aware correction

On-premise installation

Custom client SDK

Dedicated server instance

File spell check

Excel file upload

Max file size

Up to 10 MB

Up to 50 MB

Up to 500 MB+

Support

Online documentation

Community support

Service desk

Remote support

On-site support

Dedicated account manager

·Prices in Korean won (KRW), VAT included·Subscriptions renew automatically each billing period·The Standard free trial is available once per person·Upgrading during a free trial is charged in full (no deduction)

Refund policy summary

Monthly subscription — full refund within 3 days of payment if unused
Annual subscription — full refund within 7 days of payment if unused
Short-term pass — full refund within 7 days if unused; if partly used, refund minus a 10% fee on the remaining eojeol

Read the full refund policy →

How eojeol are counted

See deduction order, overage handling, and how unused quota carries over at renewal. (An eojeol is a space-delimited unit of Korean text, roughly one word.)

Read the usage guide →