Instead of explaining everything in words, we put the main differences in one table.
| Parameters | GrammarlyGrammar & Style Specialist | ChatGPTVersatile AI Chatbot | SmodinAll-in-One Writing Suite |
|---|---|---|---|
General Comparison | |||
Key features | Grammar, style, tone | Generate text and ideas | Write, edit, and check text |
Best for | Polishing text | Writing from scratch | Full text work |
Types of users | Writers, office workers | All types of users | Students, teachers, copywriters, bloggers |
Works on | Web, browser, apps | Web, browser, apps | Web, browser, Chrome extension |
Features & Accuracy | |||
Real-time error correction | Yes | Yes | Yes |
Plagiarism checker | Yes | Partially, as the results are not guaranteed to be correct | Yes |
Readability score checker | Yes | Partially, as the results are not guaranteed to be correct | Yes |
AI detection | Yes | Yes, on request | Yes |
We checked the main things that really help when using AI writing tools. For each tool, we looked at:
What we tested
These criteria reflect the features most users compare when choosing a writing assistant, plagiarism checker, or AI-content evaluation tool.
Before we get into details, check a quick intro to each tool – what it is and what it promises.
Tool overview
Grammarly checks grammar, spelling, and style. It was created by Grammarly Inc. in 2009. You can use it in your browser, web app, or mobile/desktop apps. It helps users correct mistakes, improve style, and improve text readability. There’s also a check for AI and plagiarism, and a helpful AI Assistant for pro users.
Tool overview
ChatGPT is an AI chatbot by OpenAI, introduced in November 2022. It generates text, gives ideas, and answers questions. It’s great for writing from scratch, brainstorming, or learning quickly. It doesn’t focus on grammar checks or plagiarism.
Tool overview
Smodin is an all-in-one AI writing tool from Smodin AI, launched in 2017. It combines writing, rewriting, and checking in one platform. It can check grammar, detect plagiarism, find AI content, measure readability, and works in multiple languages.
Now to the main point – what these services can do. We won’t list everything because the tools keep improving and adding new features. Instead, we’ll check the main functions.
We reviewed how each tool performs across common writing scenarios such as editing drafts, generating content, and checking originality.
Quick look at prices and what you get:
Pricing breakdown by tool
Grammarly
Free checks grammar and style. Premium gives all features plus AI and plagiarism checks. Costs about $12 per month if paid yearly, $30 if paid monthly, and is a bit different for teams.
ChatGPT
The free version is limited. Paid plans start at $7–$20 per month, with faster and more text.
Smodin
Starter plan starts at $17.99/month with access to all core AI tools (writer, detector, humanizer, plagiarism checker, rewriter). Premium unlocks unlimited writing output, advanced models, Chrome extension, API access, and bulk processing.
At $17.99/month, Smodin bundles 7+ tools (AI writer, detector, humanizer, plagiarism checker, rewriter, translator, summarizer) – roughly matching Grammarly Premium's price while covering features that would otherwise require subscriptions to multiple separate tools.
Let’s look at the main advantages and drawbacks of each tool.
Short guide to help you pick the right tool for your needs.
Smodin is a strong option for students who need writing support, together with plagiarism and AI checks. Useful for essays, papers, and homework where originality matters.
Teachers who need to review student work will feel more comfortable with Smodin. It allows text checks, plagiarism reports, and AI detection, which helps with academic control and fairness.
ChatGPT works well for SEO writers who need drafts, ideas, and content fast. It helps speed up writing, especially at the early stages of content creation.
Agencies that work with many texts and clients benefit from Smodin. It covers writing, editing, and checking in one workflow, which saves time when managing large volumes of content.
Grammarly suits large teams and institutions that focus on language quality and consistency. It helps keep writing clear and professional across many users.
If these tools do not feel right for you, there are a few other options. QuillBot is mainly for rewriting text. Turnitin is used in schools and universities to check plagiarism, not to write text. Copyscape is mostly for checking copied content on websites.
Mainly for rewriting text.
Used in schools and universities to check plagiarism, not to write text.
Mostly for checking copied content on websites.
These tools usually do one simple job, not everything at once.
These tools are not the same and are made for different tasks. Grammarly works best when you already have text and want it clean and correct. ChatGPT helps when you need text or ideas fast. Smodin is good when you want one tool to write, rewrite, and check text in one place.
So, choose the tool depending on what you do most. Take Grammarly for editing, ChatGPT for writing from zero, and Smodin for full-text work.
Practical answers to the questions teams ask before choosing a writing and originality stack.
Also from Smodin
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