Does the Common App check for AI in the activities section?
No — Common App does not run AI detection software on applications, including the activities section. But that is not permission. Its fraud policy defines misrepresenting the output of an artificial intelligence platform as your own original work as fraud, and consequences can include application invalidation and admission revocation. Individual colleges set stricter rules; Brown bans AI in application content entirely.
Why — the first-principles explanation
Two different questions get tangled here, and separating them is the whole answer. "Is there a detector?" and "Am I allowed?" have opposite answers.
On detection: Common App's position is that it does not use AI detection tools to validate applications. There's a good reason beyond policy. AI detectors are unreliable, producing both false accusations and false clears, and the activities section is nearly the worst possible input for one. You get 50 characters for a position title, 100 for the organization, and 150 for the description. Detectors work by measuring statistical patterns across a passage — how predictable the word choices are, how the rhythm varies. In 150 characters there is almost no signal to measure. Running a detector there would be statistical noise generating accusations. So the absence of a detector isn't leniency; it's that the tool wouldn't work.
On permission: the rule is separate from the enforcement. Common App's fraud policy covers "intentionally misrepresenting as one's own original work... the substantive content or output of an artificial intelligence platform, technology, or algorithm." That's the standard whether or not anyone scans for it. Applicants certify their information is true, and the signed statement warns of possible disciplinary actions including admission revocation, expulsion, or revocation of course credit, grades, and degree — note that last one. The exposure doesn't end at admission. It follows the degree.
So the actual risk isn't an algorithm. It's a human reader, holding your 150 characters, who has read ten thousand activity descriptions this season and can feel when "spearheaded a transformative initiative fostering community engagement" didn't come from a 17-year-old. There's no appeal process against a reader's impression, and no notification that it happened.
Colleges layer their own rules on top, and they're stricter. Brown states that "the use of artificial intelligence by an applicant is not permitted under any circumstances in conjunction with application content," while allowing AI "to assist with spelling and grammar review, in the same way as any other platform that supports basic proofreading." Check the policy at each school you apply to — they differ, and the college's rule governs, not Common App's.
An example that makes it click
Imagine a farmers market with an honor-system cash box. Nobody's checking. There's no camera, no clerk, no receipt.
That's not the same as the tomatoes being free. It means the system runs on your signature — and if someone notices later that you took twenty dollars of tomatoes and paid two, the consequence isn't a fine at the stall. It's that you're not welcome at the market, possibly after you've already eaten the tomatoes. That's what admission revocation after enrollment looks like.
How to do it
- Understand the actual rule: Common App's fraud policy treats misrepresenting AI output as your own original work as fraud — regardless of whether anyone scans for it.
- Check each college's own AI policy separately. They vary widely and the stricter one governs. Brown, for example, bans AI in application content entirely except for spelling and grammar review.
- For the activities section specifically: you have 50 characters for position/leadership, 100 for organization, 150 for description. Write these yourself — the space is too small for AI to add anything but generic filler.
- Use concrete numbers and specifics: "Tutored 12 students weekly in algebra; 9 raised a letter grade" beats any AI phrasing, and it's the thing an AI cannot know.
- If you use AI at all, keep it to what your target schools explicitly allow — usually spelling and grammar review only. Never let it generate substantive content.
- Before submitting, read every entry aloud. If it doesn't sound like you talking, rewrite it.
- Remember the certification you sign covers your whole application, and consequences can reach past admission to revocation of credit, grades and degree.
Key facts
- Common App's fraud policy defines fraud to include "intentionally misrepresenting as one's own original work... the substantive content or output of an artificial intelligence platform, technology, or algorithm."
- Common App's public position is that it does not use AI detection tools to validate applications.
- The activities section allows 50 characters for position/leadership title, 100 for organization name, and 150 characters for the description.
- Brown University states: "the use of artificial intelligence by an applicant is not permitted under any circumstances in conjunction with application content," while permitting AI "to assist with spelling and grammar review."
- The Common App certification applicants sign warns they "may be subject to a range of possible disciplinary actions, including admission revocation, expulsion, or revocation of course credit, grades, and degree should the information I have certified be false."
- AI detectors measure statistical patterns across a passage; a 150-character field provides very little signal, which is why detection is impractical on activity descriptions regardless of policy.
▶ The 60-second explainer (script)
No — Common App does not run AI detection software on applications, including the activities section. But do not hear that as permission, because two different questions are getting tangled here. Question one: is there a detector? No. And there's a technical reason beyond policy. AI detectors work by measuring statistical patterns across a passage — how predictable the words are, how the rhythm varies. The activities section gives you 150 characters for a description. There's almost no signal in 150 characters. A detector there would be noise generating accusations. So the absence isn't leniency. The tool just wouldn't work. Question two: are you allowed? No. Common App's fraud policy covers intentionally misrepresenting the output of an AI platform as your own original work. That's the rule whether or not anyone's scanning. And read the certification you sign: it warns of admission revocation, expulsion, and revocation of course credit, grades, and degree. That last one matters. The exposure doesn't stop at admission. It follows the diploma. So the real risk isn't an algorithm. It's a human reader holding your 150 characters, who has read ten thousand of these this season, and can feel when "spearheaded a transformative initiative fostering community engagement" didn't come from a seventeen-year-old. There's no appeal against an impression. You won't even know it happened. And colleges are stricter than Common App. Brown says AI is not permitted under any circumstances in application content — except spelling and grammar review. Check every school on your list. Their rule wins.
What authoritative sources say
People also ask
So can I use AI in the activities section without getting caught?
There's no software scanning it, but "caught" isn't the risk to plan around. A human reader recognizing generic phrasing has no appeal process, gives no notice, and the certification you signed extends to revocation of your degree later. The asymmetry is bad: tiny upside, permanent downside.
Does Common App use Turnitin or GPTZero?
Common App's stated position is that it does not use AI detection tools to validate applications. Individual colleges make their own choices about their own review processes.
Can I use AI for spelling and grammar on my application?
Some colleges explicitly allow it — Brown permits AI for spelling and grammar review, the same as any proofreading platform. But policies differ by school, so check each one. Never let it generate substantive content.
What happens if a college thinks my application was AI-written?
Under Common App's framework, consequences can include written notice, application invalidation and account termination. The certification applicants sign warns of admission revocation, expulsion, or revocation of course credit, grades and degree if certified information is false.
What should I write in 150 characters instead?
Specific facts only you have: numbers, names, outcomes. "Ran the food drive; 1,400 lbs collected, up from 600" beats every AI sentence, because AI can imitate style but can't know your numbers.