Students may use AI to check the grammar and spelling of an application essay, but not to draft, outline, or write it. The Common App fraud policy explicitly lists submitting the substantive output of an AI platform as one’s own original work as fraud, and the California Institute of Technology (Caltech) requires Fall 2027 applicants to review its AI guidelines before submitting supplemental essays, warning that noncompliance may lead to rescission of admission. The parent guide that the Irvine Unified School District (IUSD) published on October 1 also lists academic honesty first among the AI literacy skills taught in grades 4 through 12.
What happened
October is when seniors at Irvine high schools write most of their essays, with early application and University of California (UC) deadlines approaching. The question parents ask most often is whether using a tool such as ChatGPT counts as a violation.
The answer does not depend on how parents or students feel about it; it depends on the written rules of the application systems and the universities. EDUBUS reviewed four official documents: the Common App fraud policy, the UC Personal Insight Questions writing guidance, Caltech’s AI guidelines, and the IUSD AI academic honesty page. The wording differs, but the line each one draws is highly consistent.
What it means for Irvine families
This line matters especially for Chinese-speaking families, for two reasons.
First, Caltech explicitly lists “translating an essay written in another language” among unethical uses. Some students draft in Chinese first and then use AI to render the text in English, and under Caltech’s guidelines that practice is not permitted.
Second, Common App penalties are not limited to one school. If fraud is determined, Common App may suspend or terminate the applicant’s account and disclose its findings to every college on the applicant’s “My Colleges” list.
What each of the four rules says
The table below reflects the intent of each document; the wording is an EDUBUS paraphrase.
| Rule | Explicitly prohibited | Explicitly allowed or encouraged | Consequence |
|---|---|---|---|
| Common App fraud policy (updated August 2023) | Submitting plagiarized essays; presenting another person’s thoughts, language, or experiences, or the substantive output of an AI platform, as one’s own original work | Not listed | The account may be suspended or terminated, and findings may be shared with every college on the applicant’s list; the applicant may appeal within 10 business days of written notice |
| UC Personal Insight Questions guidance | Plagiarizing print or online sources; using anyone’s words other than the student’s own | Family, teachers, and friends may offer suggestions, but the student must write the answers alone | Not stated on the page |
| Caltech Fall 2027 AI guidelines | Copying directly from an AI generator; relying on AI to outline or draft; replacing the student’s voice with AI content; translating an essay written in another language | Using tools such as Grammarly or Microsoft Editor to check the grammar and spelling of completed essays; using AI to generate brainstorming questions; using AI to research the application process | Noncompliance may result in rescission of admission |
| IUSD AI Academic Honesty page | Using any AI tool without teacher permission | With teacher permission: generating ideas, research, clarifying text, practicing skills, creating and designing, and editing and feedback | Applies to schoolwork |
A simple test
Caltech’s guidelines offer a standard that parents can apply directly: would it be ethical for a trusted adult to perform the same task? Asking a teacher to check spelling and grammar is acceptable; asking a teacher to write a draft for the student to adjust and submit is not. Substituting ChatGPT for the teacher in that question makes the answer clear.
UC’s guidance makes the same point from another direction: others may offer suggestions, but the words must be the student’s own.
EDUBUS recommendations
Set the rules before writing begins. The IUSD parent guide recommends a family technology agreement. During application season, families can make it specific by writing down which steps may involve AI and which may not, and both parents and the student follow it. The basis is that Common App and Caltech both place drafting outside the permitted uses.
Students should rewrite Chinese drafts into English themselves. The basis is that Caltech lists translation as an unethical use. Organizing ideas in Chinese is fine, but the English text that enters the application must come from the student.
Keep a record of the writing process. Save outlines, each draft, and revision history. The Common App appeal window is only 10 business days, and a process record is the most direct evidence that the student wrote the essay.
Run grammar checks last. Caltech permits checking the grammar and spelling of completed essays, so the student should finish writing first and check afterward, not the other way around.
For essay prompts and writing requirements, see Common App Keeps Its Seven Essay Prompts and UC PIQs Remain Four of Eight, 350 Words Each. For one-on-one essay coaching, see the EDUBUS College Essay Bootcamp; for overall application planning, see College Admissions Planning.
Sources
- Common App: Fraud Policy (accessed October 4, 2026)
- University of California: Personal insight questions (accessed October 4, 2026)
- Caltech: Supplemental Application Essays (accessed October 4, 2026)
- Caltech: Undergraduate and Graduate Admissions AI Policy: Guidelines for Fall Applicants (accessed October 4, 2026)
- Irvine Unified School District: Digital Citizenship: A Guide for Parents (October 1, 2026) (accessed October 4, 2026)
- Irvine Unified School District: AI Academic Honesty (accessed October 4, 2026)
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