The most accurate AI grader for Williams essays.
Kolly was built and calibrated on hundreds of thousands of essays from students who actually got into Williams College and the rest of the T20.
Williams essay prompts for 2026-27
Copy the prompt you are answering into the prompt field above, then paste your draft, so the readers grade the answer against the question it has to answer.
Optional Writing Supplement (Academic Paper)
Optional Writing Supplement: Williams does not require a writing supplement. If you are interested in submitting an example of your academic writing, you may share a 3-5 page paper (excluding citations) written in the last year. The paper may be creative or analytical, can cover any topic, and need not be graded. Please include a description of the assignment or prompt and do not submit lab reports.
Optional
All Williams supplemental essays, with word limits and the published source.
How Kolly grades a Williams essay
The grade covers the same six dimensions as every Kolly read: hook, theme, detail, authenticity, reflection, and writing, each scored from 0 to 5. The big number is a percentile that shows where your draft lands among accepted essays of the same type from top US schools. Williams readers, like their counterparts at peer schools, read fast and form an impression in the first paragraph. The verdict quotes the line that lands and names the weakest moment, so you know what to fix first.
Why Kolly instead of a ChatGPT read
ChatGPT and other general models grade against writing in general, which is not what Williams readers do. Kolly grades against essays that got in, and four readers argue over the draft before they vote, so a polished answer that says nothing specific gets called out instead of praised. The quick read is free without an account. A free Kolly account adds the full review: a stronger scoring model, notes on each paragraph, and a fix-it plan.
Grading your personal statement?
Use the main college essay grader for a Common App essay that goes to every school on your list. For acceptance rates, test scores, and cost, see Williams College admissions.