Grammarly survey finds 90% of U.S. college students use AI weekly, often without institutional guidance.
A new survey of 2,000 U.S. students in higher education, conducted online in early July and commissioned by Grammarly, found that artificial intelligence has become a regular tool for most learners. The study focused on those working toward college degrees in the US and revealed how deeply AI has entered both academic life and personal routines.

The most common use of AI, mentioned by 49% of respondents, was for brainstorming ideas. Another 42% said they use it to fix grammar and spelling mistakes, while 41% turn to it for help in understanding class topics that are hard to follow. Around 35% said AI helps them grasp issues unrelated to school, such as taxes or planning travel. A slightly smaller share, at 34%, reported using AI to expand on early ideas after brainstorming. About 29% said they use it for questions they’re too embarrassed to ask in person, and 25% said they rely on AI for general life advice or for improving their résumés. A quarter also use it to build study aids like notecards, and 22% said they’ve used AI to get ready for interviews. These numbers point to how embedded these tools have become across nearly every part of a student’s week.

Grammarly survey finds 90% of U.S. college students use AI weekly, often without institutional guidance.

Altogether, 87% of students said they use AI for academic tasks, while 90% said they also apply it to life outside the classroom. On average, respondents reported spending five hours per week using AI tools for schoolwork and another five hours using them for personal reasons. But despite how common the tools have become, many said they feel unprepared or unsupported when it comes to using them properly.

Around 55% of students said they are learning to use AI without real guidance. Another 46% admitted they’re worried about getting in trouble for how they use it, and 10% said they already have faced consequences. While most students said their school has an official policy on AI, what those rules look like differs widely. About 30% said the use of AI is allowed for specific tasks only, and 31% reported that they can use it more broadly if sources are cited. But 32% said their college or university doesn’t allow the use of AI at all.

Even in places where rules exist, students say support is limited. Nearly 69% said most of their professors talk about the policy. However, only 11% said their instructors encourage AI use. That mismatch has left many students operating in an unclear space, where policies are known but not reinforced with helpful instruction.

Peer attitudes also vary. Roughly 37% of students said AI use is acceptable if disclosed, while 25% said classmates view it as cheating. About 22% felt that using AI is seen as an efficient or smart move by others in their circle.

When asked what they believe will matter most after graduation, half of the students said that knowing how to use AI is the top skill they expect to leave college with. Around 62% also linked their future career success to the ability to use AI responsibly. The degree itself didn’t rank as highly.

Only 28% of students said their institution is lagging behind when it comes to adopting new tech. Still, the findings show that usage is outpacing instruction. Most students are already deep into regular use of AI, both for learning and for life tasks, even while schools are still deciding how to handle it.

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