Grammarly’s AI Detector Agent Ranks #1 in Quality

AI detection has become a fixture for many students and instructors across writing assignments in the era of AI. When detection tools work well, students can confidently demonstrate their original work, and instructors can drive meaningful conversations about how AI should be used in assignments. That’s why Grammarly has made it a priority to offer high-quality AI detection to students and institutions, and that commitment has been validated in a big way.

We’re proud to share that Grammarly ranked #1 on RAID’s leaderboard for AI detection quality. RAID (Robust AI Detection) is a rigorous evaluation system that tests how accurately AI detectors can distinguish between human- and AI-generated text, and this top ranking confirms what we’ve been working toward: providing the most reliable AI detection available.

RAID is one of the most widely recognized benchmarks for evaluating AI detection tools. It tests detection systems under identical conditions using over 670,000 texts across different writing styles, AI models, and even attempts to fool the detectors. In a space where it’s easy for companies to claim high accuracy but hard to prove it, RAID provides an independent standard. It gives researchers, institutions, and users a reliable way to compare detection tools.

By continually iterating on our model quality, we deliver best-in-class writing support for students and our partner colleges and institutions. The AI landscape is saturated and difficult to navigate today. Between learning and applying new material in assignments, meeting new friends, living far from home, and preparing for the future, students face making a couple of hundred decisions a day. When students run their work through Grammarly’s AI Detector agent, they get added reassurance that their writing reflects their own effort and won’t be mistaken for AI-generated text.

A higher-quality detector isn’t just a product win—it’s a fairness win. When students can see accurate detection and clear areas for improvement, their confidence and voice naturally grow. Grammarly also offers rewrite capabilities, fact-checking, and simulated reader reactions within our docs experience, so students not only learn which words or phrases to avoid but, more importantly, how to strengthen their arguments and improve their writing. Rather than fearing what their professor might find when reviewing their work, we hope our agents can help students feel more empowered.

While we are proud of the recognition Grammarly’s AI Detector has received, it is still only one part of the suite of insights students and instructors need to write responsibly and educate productively in today’s AI landscape. With Authorship, students can track and share their writing process with professors to outline exactly where they might have used AI as a tool. Add in a dedicated chat partner and 13 student-specific writing agents, and students have an entire ecosystem designed to amplify their voice within their writing. Because in a world of AI, your voice should never be in question.

While no AI detector is 100% accurate, Grammarly’s detector ranked #1 on RAID’s quality benchmark leaderboard. We recommend using AI detection as part of a comprehensive approach to verifying content originality. Learn more about AI detector accuracy and limitations at https://www.grammarly.com/blog/ai/ai-detectors-accuracy/. Grammarly’s AI Detector can be accessed at https://www.grammarly.com/ai-detector. For full benefits and detailed suggestions, students can also access the paid-only agent within our docs writing surface at app.grammarly.com.