Will AI Help or Hurt Your College Essay?
How LLMs work and why realness matters more than perfect writing
May 14, 2026
Much has been written about the ethics of using AI to write admissions essays. Very little examines whether Large Language Models (LLMs), by design, are actually suited to the specific task of creating a winning admissions essay.
What makes a winning essay?
In order to understand whether AI will help or hurt your essay, we first need to define what specifically makes a winning essay. That way, we know what we're optimizing for and can assess whether AI helps or hurts. Luckily, admissions officers have already answered this question for us:
"I don't want different. I don't want unique. I just want to know what makes you the person you are. I want to know what matters to you. I want to know what you care about."
— Shawn Felton, Director of Admissions, Cornell University
"Students think they need a monumental experience, but the essay can be about something small. What does it mean to you? That is what we want to know."
— Calvin Wise, Director of Recruitment, Johns Hopkins University
"By the time the application comes to us, many have gone through so many hands that the essays are sanitized. I wish I saw more of a thoughtful voice of a 17-year old."
— Christoph Guttentag, the Dean of Admissions for Duke University
"Some of the worst college essays I've read were actually written quite well in terms of grammar, sentence structure, and organization, but the student's unique voice had been lost."
— Azure Brown, former Senior Admissions Evaluator, University of California
If you pay close attention to the words that these admissions officers use to describe winning essays, you'll notice a pattern: "who you are", "unique voice", "meaningful to you". You'll also notice other words that are either conspicuously absent or explicitly less emphasized: "well written".
The one important characteristic that winning essays have in common is realness. They reflect who the applicant genuinely is, and help the admissions staff understand how that person will fit into the campus community. Good writing is nice, but it is not the ultimate goal. Admissions officers know this, and are very good at discerning when a well written essay lacks realness.
So, will AI help you write a "real" essay?
How does AI work?
When an LLM like ChatGPT or Claude writes something, it uses a set of inputs and rules to choose its words.
First, every word is assigned a score based on all of the words that preceded it (your prompt, what it's already written, any context you've given it, etc). These scores come from training. During training, the model read billions of text samples and learned statistical associations. For example, after the phrase "my sick Grandpa had spent the week \_\_\_\_," the words "resting at home" are far more likely to follow than "training for a UFC fight". Therefore, those words get a higher score.
Then, through a process called Reinforcement Learning from Human Feedback (RLHF), models like ChatGPT are refined by having human raters score their outputs on qualities like "helpfulness" and "quality." Over millions of these rating cycles, the model learns to produce text that the widest possible audience would rate as "good writing" (engaging, interesting, literary, etc). At this step, ChatGPT might decide that "bedridden" is a more specific, vivid word to finish the sentence about Grandpa than "resting at home".
Finally, the output is shaped by a setting called "temperature," which controls how much randomness the model introduces when selecting words. At low temperature, the model almost always picks the most statistically probable next word, producing text that is coherent, predictable, and bland. At high temperature, it's more willing to reach further down its probability rankings and pick a less likely word, producing text that sounds more creative and surprising ("My grandfather's body had become a kind of anchor, pinning him to the mattress while his mind still wandered the garden outside his window").
But here's the critical nuance: high temperature doesn't give the model new information, new experiences, or new ideas. It's still choosing from the same set of statistical associations it learned during training. It's the equivalent of shuffling a deck of cards. You'll get a different hand every time, but you're still drawing from the same 52 cards. None of them are really yours.
LLMs have been trained, at a fundamental level, to write the kinds of things that other people tend to write and approve of. If you ask it to generate writing about an experience at summer camp, it'll write about the statistically average experience at summer camp, with some temperature "flair" to fool you into thinking it's unique and interesting, which is exactly the essay that hundreds of other applicants also might be submitting, and exactly the essay admissions officers have learned to recognize.
The solution
AI is an excellent tool for writing and sharpening thinking in domains where convention, clarity, mass appeal, synthesis, or factual depth are the goals. Examples include professional emails, legal copy, marketing copy, technical documentation, research reports, strategy briefs, etc. because there are established patterns for success in each of those domains that can be captured by the training data and optimized for by the models.
AI can also be a helpful tool for writing the admissions essay if it's used in a way that supports rather than replaces the process of looking inward and expressing what feels true and meaningful. For example, applicants can prompt AI for reflective journaling prompts and ask for guidance when they get stuck. LLMs are excellent at generating probing follow-up questions because that's a well-established pattern. The answers, though, come from you, which is where the realness lives.
But for the reasons outlined above, applicants should not hand AI the pen. The undergraduate admissions essay is a unique form of writing where the entire purpose is to reveal an individual human being. It is, by design, the one part of your application that should not be conventionalized, because the more it sounds like it could have been written by anyone, the less likely it is to result in a successful admit decision.
FAQs
What if I give the LLM context on what my voice sounds like, and then give it successive prompts so that it can pattern match something that sounds authentic to me. Could that work?
With enough context, an LLM can do a reasonable job mimicking your voice. But in order to give the model what it needs to write a real essay, you'd have to reflect on what matters to you, identify the specific moments that shaped you and why, reflect on your values and traits, and articulate all of that clearly enough for the model to work with. By the time you've done all of that, you've already finished the hard part of writing the essay. The actual choosing of words and organization is the easier part, so using an LLM at that point may not give you the leverage you're hoping for to save time or uplevel the quality of the essay.
Can admissions officers actually detect AI-written essays?
Definitively? No. The best AI detection tools can sometimes identify raw, unedited AI text, but their accuracy drops sharply on essays that have been edited, blended with human writing, or run through widely available tools designed to evade detection. But it almost doesn't matter. If the admissions officer has a hunch an essay was written by AI, it's probably because they find the essay inauthentic. Whether it's inauthentic because it was written by AI or some other reason is beside the point. It's the inauthenticity itself that hurts the applicant's chances of admission.
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