It depends on your work. Gemini — for teams that use Google Workspace (Gmail, Drive). ChatGPT — for those who want one tool that does a bit of everything.
AI Basics · Tool Comparison
Gemini vs ChatGPT Comparison
It’s the first comparison most Google-account organizations make. The differences show up in Google service integration and in image and video features.
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.
Gemini — Best for- Teams that use Google Workspace (Gmail, Drive)
- Managers rolling out AI across the organization for the first time
- Planning and sales roles that often research current information
Better fit elsewherePeople for whom the quality of long-form writing matters most
Learn more about Gemini →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 | Gemini | ChatGPT |
|---|---|---|
| Verdict | Google’s all-purpose AI | A comeback with Astra |
| Developer | OpenAI | |
| Free | Free tier available With just a Google account, you can use the basic features for free. Stronger models and more capacity unlock on paid plans. | Free plan available The free plan gives you plenty of text chat, while image generation, voice, and deep research come with limits. |
| Korean | Excellent Korean questions and answers both read naturally, and it is strong at finding the latest Korea-related information. | Excellent Handles Korean conversation well, and the official pricing page and app are available in Korean. |
| Level | Beginner | Beginner |
| Individual plans (start here) | Google AI Pro KRW 29,000 (≈ US$22)/month | Plus KRW 29,000 (≈ US$22)/month |
| Company pricing | Workspace Business Standard $14 per user/month | No dedicated business plan |
| Training on your input | Conversations on free personal accounts may be used to improve the service, according to the provider. For company work, it is safer to use an organizational Google Workspace account. | 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 | When polishing a long report, it can produce fairly ordinary prose. Many people split the work: Gemini for finding and organizing, Claude for writing and refining. | 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
Gemini
ChatGPT
Long-document analysis
Gemini
ChatGPT
Research and search
Gemini
ChatGPT
Image generation
Gemini
ChatGPT
Video generation
Gemini
ChatGPT
Easy to get started
Gemini
ChatGPT
Coding ability
Gemini
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
- Gemini: With just a Google account, you can use the basic features for free. Stronger models and more capacity are available on paid plans.
- ChatGPT: The free plan offers generous text chat, with limits on image generation, voice, and deep research.
- Gemini (excellent Korean): Natural in Korean for both questions and answers, and strong at finding the latest Korea-related information.
- ChatGPT (excellent Korean): Holds Korean conversations well, and the official pricing page and app are also available in Korean.
- Gemini: Conversations on free personal accounts may be used to improve the service, according to Google. If you use it for company work, it is safer to use an organizational Google Workspace account.
- 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.
Knowing a tool isn’t the same as an organization using it
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