Caltech supplemental essays 2026-27
Every Caltech supplemental prompt for this cycle, quoted with its limit and who has to answer it, then what to write and in what order. Checked against Caltech’s own page on November 5, 2026.
The Caltech supplement at a glance
- Prompts listed
- 8
- Words to write
- 950 words
- Admitted posters
- GPA 3.93 to 4.00
SAT 1,530 to 1,580
The GPA and SAT are the middle half of what admitted applicants posted publicly, not a requirement. The full tables, activities and majors are on how to get into Caltech.
What changed this year
Caltech labels this its set for fall entry and says its questions change every year.
The Caltech prompts, quoted
Every applicant (950 words)
“If you had to choose an area of interest or two today, what would you choose? [...] Why did you choose your proposed area of interest? If you selected 'other', what topics are you interested in pursuing?”
Limit: 150-200 words · Who: All first-year applicants (Common App or QuestBridge Match Finalists who ranked Caltech) · Required for this group
Readers check this answer against your transcript and activities, so it has to match them. Name the specific question, course or project that pulls you, show where the interest started, and point to what you would use at Caltech by its real name.
Answer one of these two
“Scholarly Character (choose one). Option 1 -- COLLABORATION: Tell us about a time your learning in STEM was shaped by another person or group – either because you needed help, offered help, changed your thinking through collaboration, or contributed to someone else's understanding. What did that experience teach you about learning and working with others?”
Limit: 200 words max · Who: All first-year applicants; choose Option 1 or Option 2 · One of a choice
“Scholarly Character (choose one). Option 2 -- PROCESS: Tell us about a time your approach to a STEM problem, concept, or project mattered as much as the outcome. How did you work through uncertainty or persist creatively in tackling the problem? What would you still defend about your process, regardless of the outcome?”
Limit: 200 words max · Who: All first-year applicants; choose Option 1 or Option 2 · One of a choice
Answer two of these three
“Scientific Drive (choose two). Option 1 -- LEARNING: Regardless of your STEM interest listed above, take this opportunity to nerd out and talk to us about whatever STEM rabbit hole you have found yourself falling into. Be as specific or broad as you would like.”
Limit: 200 words max each · Who: All first-year applicants; answer two of the three Scientific Drive options · One of a choice
“Scientific Drive (choose two). Option 2 -- PURSUING: Tell us about a STEM question, problem, idea, or project that has held your attention over time. What drew you to it, how have you pursued it, and what do you still want to understand?”
Limit: 200 words max each · Who: All first-year applicants; answer two of the three Scientific Drive options · One of a choice
“Scientific Drive (choose two). Option 3 -- MAKING: Tell us about something you created, tested, repaired, modeled, coded, built, or redesigned. What problem were you trying to solve and what did the process reveal to you?”
Limit: 200 words max each · Who: All first-year applicants; answer two of the three Scientific Drive options · One of a choice
Choose the commitment where your own part is clearest, even if it is not the biggest line on your list, and spend the words on what you did that someone else in your seat would not have.
“Caltech students bring more than academic ability to the communities they join. What is something you would be excited to do, share, teach, make, start, or contribute as part of the Caltech community?”
Limit: 100-150 words · Who: All first-year applicants (Fun Question) · Required for this group
This is the kind of question readers look forward to, because it is where a file starts to sound like a person. Answer it literally and specifically: a real, slightly odd detail does more than a profound one, and 150 words is enough for one image followed all the way through.
Optional (up to no stated limit)
“Caltech cares about context. Is there anything about your academic preparation, coursework, school context, or learning experiences that would help us better understand your readiness for Caltech?”
Limit: Not stated · Who: All first-year applicants (Optional Academic Short Answer) · Optional
Use this only for something the rest of the application does not show, said plainly. If nothing is missing, leaving it blank is better than filling it.
How many words the Caltech supplement takes
950 words for every applicant, counting each choice once at its limit.
A plan for writing the Caltech set
Caltech readers are looking for scientific character, so every STEM answer should be specific enough that a scientist could follow it. Choose the two Scientific Drive options that let you talk about different work, one question you have chased and one thing you built or fixed, rather than one project twice. The collaboration or process answer is where readers learn how you behave when you are stuck. Save the community question for something you would actually start or teach on campus.
Caltech on AI and your essays
Caltech requires every applicant to review its AI guidelines: copying from an AI generator, or relying on AI to outline or draft, is unethical, while grammar tools on a finished essay are fine. Not complying may lead to rescinded admission. Read Caltech’s statement.
How Caltech reads a file
Caltech supplement questions
- What are the Caltech supplemental essays for 2026-27?
- Caltech lists 8 supplemental prompts for 2026-27, all of them quoted in full on this page from Caltech's own admissions page as it read on November 5, 2026. Which ones you answer depends on the school or program you apply to and the choices you make; each prompt on the page says who answers it.
- How many words are the Caltech supplements?
- 950 words for every applicant, counting each choose-one group once at its limit. Program and optional prompts are listed separately.
- What changed in the Caltech supplement this year?
- Caltech labels this its set for fall entry and says its questions change every year.
- Does Caltech allow AI on application essays?
- Caltech requires every applicant to review its AI guidelines: copying from an AI generator, or relying on AI to outline or draft, is unethical, while grammar tools on a finished essay are fine. Not complying may lead to rescinded admission.
Writing the Caltech supplement?
A Specialist who went through a school like Caltech can read your drafts against these prompts and tell you which answers sound like you and which could belong to anyone.
Checked against Caltech’s own admissions page on November 5, 2026. Prompts are quoted word for word, with the college’s dashes set in our house style. Prompts can change during a cycle; confirm the wording in your application before you submit. Aristo Scholars is not affiliated with Caltech. Every college’s supplement