It depends on your work. Claude — for those whose work centers on documents such as reports, proposals, and meeting minutes. ChatGPT — for those who want one tool that handles a bit of everything.
AI Basics · Tool Comparison
Claude vs ChatGPT Comparison
This is the question we hear most from organizations that handle a lot of documents. Even with the same material, the two tools are good at quite different things.
Free plans, Korean support, pricing, and security in one tableChecked 26 Sep 2026
VERDICT
How to choose
The “best for” notes from each tool’s page, side by side.
Claude — Best for- People whose work revolves around documents such as reports, proposals and meeting minutes
- Anyone who dislikes writing that sounds AI-generated
- People who work with material that must be accurate, such as regulations and contracts
Better served by other toolsPeople whose main goal is creating images or video
Learn more about Claude →ChatGPT — Best for- People who want one tool that does a bit of everything
- People trying AI for the first time for free
- People who want images and voice in the same account
Better fit elsewherePeople whose work centers on reading long documents and polishing text
Learn more about ChatGPT →COMPARE
Compared in one table
Pricing and terms were checked directly on each tool’s official pages. Check the official page again before you pay.
| Feature | Claude | ChatGPT |
|---|---|---|
| Verdict | The most talked-about AI | A comeback with Astra |
| Developer | Anthropic | OpenAI |
| Free | Free tier available Create an account and use it free up to a daily limit. Heavy work use reaches that limit quickly. | Free plan available The free plan gives you plenty of text chat, while image generation, voice, and deep research come with limits. |
| Korean | Excellent Questions and answers both read naturally in Korean. It follows instructions on formal speech levels and report-style writing well. | Excellent Handles Korean conversation well, and the official pricing page and app are available in Korean. |
| Level | Beginner | Beginner |
| Individual plans (start here) | Pro $22/month | Plus KRW 29,000 (≈ US$22)/month |
| Company pricing | Team · Standard seat $27.50 per user/month | No dedicated business plan |
| Training on your input | Anthropic states that it does not use consumer conversations for model training by default. However, this can vary by settings and plan, so check the current terms before rolling it out company-wide. | In the comparison table on the official pricing page, the “Use your content to train our models” row for personal plans is marked “Can opt out.” That means you have to turn it off yourself in settings if you don’t want your content used. |
| What it does well |
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| Weaknesses | It does not generate images, and for real-time questions such as today’s news, a tool with built-in search is the better choice. It’s best described as a tool built for reading, writing and thinking. | With plans now split into Free, Go, Plus and Pro, it has become hard to say exactly what each one covers. The Go plan on the official pricing page carries a notice that it may include ads, and the “Use your content to train our models” row for personal plans is marked “Can opt out.” That means you have to turn off the default yourself. |
SCORE
Nanum ratings compared
Subjective ratings out of 5 from John Kim, CEO, based on his use of both tools in training and real work. The two tools are scored side by side on the same criteria.
Writing
Claude
ChatGPT
Long-document analysis
Claude
ChatGPT
Research and search
Claude
ChatGPT
Image generation
Claude
ChatGPT
Video generation
Claude
ChatGPT
Easy to get started
Claude
ChatGPT
Coding ability
Claude
ChatGPT
DETAIL
Tool reviews
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Related pages
This comparison is not the result of running the same prompt through several tools. It brings together what we verified for each tool (official pricing pages, terms of service, and Nanum’s own ratings) in one place.
FAQ
- Claude: Create an account and you can use it free up to a daily limit. If you use it heavily for work, you’ll hit the free limit quickly.
- ChatGPT: The free plan offers generous text chat, with limits on image generation, voice, and deep research.
- Claude (excellent Korean): Questions and answers both read naturally in Korean. It follows instructions on honorific speech and formal report style well.
- ChatGPT (excellent Korean): Holds Korean conversations well, and the official pricing page and app are also available in Korean.
- Claude: Anthropic states that it does not use consumer conversations for model training by default. However, this can vary by settings and plan, so check the current terms before rolling it out company-wide.
- ChatGPT: In the comparison table on the official pricing page, the 'Use your content to train models' item for personal plans is marked 'Can opt out.' That means you have to turn it off yourself in settings if you don't want your content used.
Last updated 22 Sep 2026 · Free-plan availability, pricing, and terms are the values confirmed on each tool’s official page. Ratings are based on John Kim, CEO of Nanum Consulting, using these tools firsthand in training sessions and real work.
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