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AI writing

AI writing pricing calculator

Based on the official pricing of 6 tools, we pick the cheapest plan that covers your monthly usage for each tool and sort by cost. 1 USD = 1,386.02 KRW (2026-09-22).

seats
Cheapestmonthly billingCopy.aiChat$29/mo₩40,200Includes 5 seats a month — the cheapest plan that covers the 3 seats you entered.
Start Copy.ai at this price

Read off the official pricing page on Sep 22, 2026. See the evidence

  • 1

    Copy.ai

    Chat

    $29

    ₩40,200

    5 seats

    Sign up
  • 2

    Claude

    Team Standard seat

    $75

    ₩104,000

    1 seats

    Sign up

No public plan covers this usage: ChatGPT, Gemini, Jasper, Notion AI

Cheapest by usage level

Monthly usageCheapest toolPer monthGap to #2
Just meChatGPTGo$9.38
₩13,000
$0.62 less than Notion AI
3 peopleCopy.aiChat$29
₩40,200
$46 less than Claude
10 peopleClaudeTeam Standard seat$250
₩346,500
$750 less than Copy.ai

How it's calculated

  • For each tool, the cheapest plan that covers your usage is selected.
  • Unlimited plans cost their base price; plans with overage add the excess.
  • Tools whose credit cost varies by model and have no official conversion are excluded and listed separately.
  • KRW uses the day's rate, before tax and fees. Default view is per-month price on annual billing.

Tools compared

ChatGPT$9.38/moOpenAI's conversational AI. A general-purpose tool that handles writing, summarizing, coding, and image generation all in one place.₩13,000 and up, free plan availableClaude$20/moAnthropic's conversational AI. A general-purpose tool strong at working with long documents, writing, and coding.₩27,700 and up, free plan availableCopy.ai$29/moA writing tool that automatically generates sales and marketing copy.₩40,200 and upGemini$19.99/moGoogle's conversational AI. It plugs into Google Docs and Gmail, and image and video generation are included in the same plan.₩27,700 and upJasper$69/moA tool that writes marketing copy and blog posts in your brand's tone of voice.₩95,600 and upNotion AI$10/moAI you use right inside Notion docs. Built into meeting-note summaries and document writing.₩13,900 and up, free plan available

How this is calculated

  1. 1KRW is converted at 1 USD = 1,386.02 KRW as at 2026-09-22. The rate is refreshed daily.
  2. 2Monthly cost is the monthly-billing price of the cheapest plan that covers the usage entered. Overage is added only where the official page states an overage rate; a plan whose allowance is exceeded with no stated overage is left out of the ranking.
  3. 3Credit-based tools are converted using the credits-per-unit figure printed on the official page. Tools whose credit cost varies by model, with no official conversion published, are excluded from the ranking and listed separately.
  4. 4The per-unit price is the plan's monthly price divided by its monthly allowance. Unlimited plans show none, as there is nothing to divide by.
  5. 5A 원고지 sheet is 200 characters; an A4 page is taken as 1,800 characters at 10pt with 160% line spacing.
  6. 6Prices are as published by the vendor. VAT, card issuers' foreign-transaction fees and the rate applied on a KRW settlement are excluded. Regional pricing and temporary promotions may not be reflected.
  7. 7Paying in dollars by card means your issuer adds its own exchange rate and a foreign-transaction fee, typically 1-2% of the amount. That figure depends on the issuer and the moment of payment, so Wolmma cannot know it and does not include it.

Disclaimer

Wolmma is an information site that collects prices from each tool's official pricing page. We may hold an affiliate relationship with a vendor, but we are neither the seller nor its agent.

We verify as carefully as we can, but a displayed price, allowance or conversion may differ from what you are actually charged, because of plan changes, regional policy, promotions or tax. Confirm the final amount on the official page before you pay.

These figures are reference information, not a recommendation or advice to buy. Wolmma accepts no liability for loss arising from a purchase or contract entered into on the basis of this information.

What your card is actually billed will differ from the figure shown, according to your issuer's exchange rate, its foreign-transaction fee and local tax. None of that is within our sight or control, and we accept no liability for it. Payment, refunds and plan changes are a contract between you and the vendor, to which the Company is not a party.

If a price is wrong, write to connect@aiyogeum.com. We check it, correct it, and record the correction in the change log.