ChatGPT 日本語: ChatGPT vs Grammarly – Which is Better for Japanese Writing?
Introduction
For anyone writing in Japanese—whether students, professionals, or language learners—finding the right tool to enhance accuracy, improve clarity, and refine tone is essential. Two popular AI-powered tools, ChatGPT 日本語 and Grammarly, offer writing assistance, but they serve different purposes. While ChatGPT 日本語 provides contextual writing support, translations, and creative writing help, Grammarly is known for its advanced grammar correction, style suggestions, and plagiarism detection.
So, which one is better for Japanese writing? In this article, we’ll compare ChatGPT 日本語 and Grammarly in key aspects such as grammar correction, writing style enhancement, creativity, and usability to help you choose the right tool for your needs.

Understanding ChatGPT 日本語
What is ChatGPT 日本語?
ChatGPT 日本語 is an AI-powered chatbot developed by OpenAI, designed to generate, analyze, and correct text in Japanese. Unlike traditional grammar checkers, ChatGPT 日本語 provides:
Real-time writing suggestions for various contexts
Grammar and sentence structure explanations
Vocabulary enhancement tailored to formal or casual settings
Creative writing assistance, including brainstorming ideas
Translation and paraphrasing capabilities
Who Should Use ChatGPT 日本語?
Japanese language learners needing grammar explanations
Writers seeking AI-generated content ideas
Professionals refining emails, reports, or business writing
Bloggers and content creators looking for engaging text
Understanding Grammarly
What is Grammarly?
Grammarly is an AI-powered writing assistant primarily designed for English writing. It helps users by:
Detecting grammar and spelling mistakes
Suggesting style and tone improvements
Providing advanced clarity, engagement, and conciseness recommendations
Offering plagiarism detection for professional and academic writing
Who Should Use Grammarly?
English writers who need advanced proofreading
Professionals and students working on essays, reports, or formal writing
Content creators optimizing their text for clarity and engagement
ChatGPT 日本語 vs Grammarly: A Feature-by-Feature Comparison
1. Grammar and Spelling Correction
ChatGPT 日本語:
Provides detailed grammar explanations and corrections in Japanese
Can rephrase sentences to improve readability
Detects nuanced grammatical issues, including formality levels
Grammarly:
Offers highly accurate English grammar corrections
Does not provide Japanese grammar checks
Focuses on sentence clarity and conciseness
Winner: ChatGPT 日本語 for Japanese grammar, Grammarly for English writing.
2. Writing Style and Readability Enhancement
ChatGPT 日本語:
Can adjust writing tone (formal, informal, business, casual)
Provides contextual rewriting suggestions
Helps refine sentence flow and logic
Grammarly:
Offers style suggestions for clarity and engagement
Detects wordiness and awkward phrasing
Uses AI to suggest better sentence structure
Winner: Grammarly for style precision, ChatGPT 日本語 for contextual improvements in Japanese.
3. Creativity and Content Generation
ChatGPT 日本語:
Can generate entire paragraphs or articles in Japanese
Assists in brainstorming, summarizing, and rewriting
Helps with storytelling, poetry, and creative writing
Grammarly:
Focuses on improving existing content
Does not generate new ideas or creative text
Mainly helps with clarity and correctness
Winner: ChatGPT 日本語 for creative writing and content generation.
4. Translation and Paraphrasing Capabilities
ChatGPT 日本語:
Can translate between Japanese and English
Provides contextual translations with explanations
Helps learners rephrase sentences for better clarity
Grammarly:
No built-in translation function
Focuses solely on English text corrections
Winner: ChatGPT 日本語 for translation and paraphrasing.
5. Plagiarism Detection
ChatGPT 日本語:
Does not have a plagiarism checker
Can help rephrase sentences to avoid plagiarism
Grammarly:
Offers plagiarism detection for English writing
Ideal for students and professionals checking originality
Winner: Grammarly, as ChatGPT 日本語 lacks this feature.
6. User Experience and Accessibility
ChatGPT 日本語:
Works via chat-based interaction
Supports multiple languages, including Japanese
Requires manual input for checking sentences
Grammarly:
Works as a browser extension, desktop app, and mobile app
Automatically detects errors while typing
Seamless integration with Word, Google Docs, and emails
Winner: Grammarly for its automated detection, ChatGPT 日本語 for flexibility in writing tasks.

Pros and Cons Summary
FeatureChatGPT 日本語GrammarlyGrammar CorrectionGreat for Japanese grammarBest for English grammarWriting StyleCustomizable tone and fluencyStrong clarity and conciseness suggestionsCreativityCan generate and refine contentNo content generationTranslationSupports Japanese-English translationNo translation featuresPlagiarism CheckNot availableBuilt-in plagiarism detectionUser ExperienceInteractive chat-based AIAutomated real-time corrections
Contact
Company name: ChatGPT Japan
My page: https://chatgptjapan.com/
City: Chuo City, Tokyo
Country: Japan
Postal code: 104-0061
Phone number: +8164-221-1078
Email: chatgptjapan.com@gmail.com
Google Map: 7-chōme-14-13 Ginza, Chuo City, Tokyo 104-0061
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