Is Grammarly AI Detectable?

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Sep 2, 2025, 9:24:16 PM (5 days ago) Sep 2

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Grammarly is best known for grammar checks and clarity improvements, but with the launch of Grammarly Generative AI, users now wonder: Is Grammarly AI detectable?

The answer depends on how you use it.
• Grammarly’s standard corrections are not detectable as AI. Tools like Turnitin confirm grammar and style edits still reflect human writing.
• Grammarly Generative AI, however, creates new text. In tests with Originality AI and Undetectable AI, content generated this way was flagged 100% as AI.

How to reduce detection risks:
• Vary sentence length and word choice to increase “perplexity” and “burstiness.”
• Use Grammarly’s editing features to polish content rather than generate it.
• Rephrase with your own words or use humanizing tools like Undetectable AI.
• Add personal insights and analysis to make the text authentic.

Final takeaway: Grammarly’s editing is safe, but Generative AI output is detectable unless refined with human input.