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Tool Comparisons

AI Tool Comparisons

92%

of students use AI tools in 2025

8 tools

compared across 5 matchups

GrammarlyChatGPTQuillBotZeroGPTGPTZeroCopyleaksTurnitinSmodin

AI tools for writing, editing, and detection are everywhere now. A 2025 study by the Higher Education Policy Institute found that about 92% of students already use AI tools in their studies. Just a year earlier, that number was around 66%, so the growth is pretty wild.

Writing assistants, plagiarism checkers, and AI detectors pop up every year, and many of them promise almost the same things. But when you actually try them, you see they're not the same at all. Some tools focus on writing and editing, others try to detect AI text, and some mix several tools in one platform. Features, limits, and pricing can also be very different.

So we decided to compare several popular tools side by side. This way, you can quickly see what each one does and when it actually makes sense to use it.

Comparisons

Comparisons

We went through a bunch of popular AI tools for writing, AI detection, and plagiarism checks. Grammarly, ChatGPT, QuillBot, ZeroGPT, GPTZero, Copyleaks, Turnitin, and Smodin all got a look.

We check how well they help with writing, how they catch AI or plagiarism, how easy they are to use, and what they cost.

Plagiarism Check
Copyleaks
Turnitin
Smodin

Copyleaks vs Turnitin vs Smodin

We just HAD to include Turnitin – everyone talks about it like it's the holy grail for students. But guess what? It's not that easy to get. If you're just a student, forget about signing up on your own. Mostly, universities and big organizations get access. That's why Smodin and Copyleaks turned out to be more accessible and feature-packed. And then there's this one popular service that made us seriously doubt the results…

Read the full comparison

Key takeaways

  • Turnitin is mostly for universities and big organizations — students can't sign up solo

  • Smodin and Copyleaks turned out to be more accessible and feature-packed

  • One popular service made us seriously doubt the results…

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