| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | Last year's cycle (2026): $2,500; 2027: Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Financial aid | Last year's cycle (2026): Need-based scholarship after acceptance: Amount: Unconfirmed — check official site. First come until funds exhausted; next-cycle terms unknown.; 2027: Unconfirmed — check official site | Last year's cycle (2026): U.S. family-income guarantee: Amount: Unconfirmed — check official site. U.S. students from families under $80,000 attended free in 2026.; Full/partial need-based aid and international aid: Amount: Unconfirmed — check official site. Aid available where cost is a barrier; international aid considered case by case.; 2027: Unconfirmed — check official site | Last year's cycle (2026): Need-based financial aid: Amount: Unconfirmed — check official site. Historical 2026 terms included free attendance for domestic households below $85,000, case-by-case aid above that threshold and for international students, and possible travel grants. Confirm 2027 terms.; 2027: Unconfirmed — check official site |
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| Expenses and aid conditions | Last year's cycle (2026): Residence hall, meals, linens, laundry, and local program transport: $0. Included in 2026 attendance fee.; Travel to and from West Lafayette: Amount: Unconfirmed — check official site. Participant responsibility, including optional airport shuttles.; Need-based scholarship after acceptance: Amount: Unconfirmed — check official site. First come until funds exhausted; next-cycle terms unknown.; 2027: Unconfirmed — check official site | Last year's cycle (2026): U.S. family-income guarantee: Amount: Unconfirmed — check official site. U.S. students from families under $80,000 attended free in 2026.; Full/partial need-based aid and international aid: Amount: Unconfirmed — check official site. Aid available where cost is a barrier; international aid considered case by case.; 2027: Unconfirmed — check official site | Last year's cycle (2026): HCSSiM application: $0. The official finance page says applying is and will remain free.; Need-based financial aid: Amount: Unconfirmed — check official site. Historical 2026 terms included free attendance for domestic households below $85,000, case-by-case aid above that threshold and for international students, and possible travel grants. Confirm 2027 terms.; 2027: Unconfirmed — check official site |
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| Stipend or pay | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Eligibility | Grade 12 (provider uses rising grades) | Grades 10–12; Grade timing: Unconfirmed — check official site | Unconfirmed — check official site |
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| Additional eligibility | Requirement: Be a rising senior in the announced cohort; Requirement: Complete the future application with transcript and accepted standardized scores if still required; Requirement: Recommended for 2026: three high-school math years and one chemistry or physics year; Requirement: Be available for the full residential week; Requirement: Follow Purdue housing, supervision, health, safety, conduct, accessibility, team, media, and travel rules; Exclusion: Assuming 2026 terms recur; Exclusion: Treating recommended coursework as a guaranteed admission threshold; Exclusion: Missing the full session or required application documents; Exclusion: Assuming STEP guarantees Purdue, Engineering Honors, scholarship, credit, recommendation, award, or admission advantage | Ages 14–18; Residency: Students from the United States and abroad are eligible; international financial aid is case by case; Requirement: Be age 14-18 by the applicable program cutoff; Requirement: Have completed grade 9 or equivalent before the session; Requirement: Not be enrolled full time in a college or university by the program's first day; Requirement: Be available for the entire six-week residential session and comply with dormitory, curfew, visiting, safeguarding, and conduct rules; Requirement: Independently attempt the official application problem set and explain experiments, conjectures, proofs, and partial progress; Requirement: Submit the required recommendation, transcript, form, short answers, and any financial-aid documents; Requirement: Retain scratch work and be prepared to explain reasoning if originality is verified; Exclusion: Applicants outside the age/education window or already full-time college students at program start; Exclusion: Collaborative, copied, AI-assisted, internet-generated, uncited, or inadequately explained problem-set work; Exclusion: Applicants unable to reside for the full six weeks or follow residential/safety expectations; Exclusion: Assuming all eight problems must be solved or that prior advanced courses/research are required; Exclusion: Assuming selection guarantees aid, publication, conference presentation, college credit, recommendation, admission advantage, internship, or job | Requirement: Be a high-school student who has not already graduated; Requirement: Show strong motivation for sustained, proof-oriented college-level mathematics; Requirement: Complete the applicant form, motivation letter, Interesting Test, and mathematical sponsor process when the next cycle opens; Requirement: Commit to the full six-week residential session under the published program model; Exclusion: Students who have already graduated from high school under the published FAQ; Exclusion: Assuming the historical Hampshire College campus, 2026 dates, or 2026 price applies in 2027; Exclusion: Assuming grades, college credit, admission to Hampshire College, or another college outcome |
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| Session dates or duration | Catalog terms: 1 week; 2027: Unconfirmed — check official site | Catalog terms: 6 weeks; 2027: Unconfirmed — check official site | Catalog terms: 6 weeks; 2027: Unconfirmed — check official site |
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| Format | In person | In person | In person |
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| Housing and supervision | Residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | West Lafayette, Indiana, Purdue University campus | Boston, Boston University campus, Massachusetts | New residential campus for 2027 is not announced; Amherst, Massachusetts was the historical 2026 location |
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| Selection and application | Selection: Rolling review until limited sessions fill; waitlist afterward. No acceptance rate is published. | Selection: About 80 high-school students are selected through demonstrated mathematical thinking in the problem set, academic context, recommendation, transcript, and short answers. PROMYS does not publish the current applicant count or acceptance rate. Application materials: One recommendation | Selection: Application review uses the form, letter, Interesting Test, and mathematical sponsor recommendation; no current acceptance rate or 2027 capacity is published. Application materials: One sponsor who knows the applicant in a mathematical context and can provide a recommendation |
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| Official sources | Source 1 · checked 2026-08-20Source 2 · checked 2026-08-20Source 3 · checked 2026-08-20 | Source 1 · checked 2026-08-20Source 2 · checked 2026-08-20Source 3 · checked 2026-08-20Source 4 · checked 2026-08-20Source 5 · checked 2026-08-20Source 6 · checked 2026-08-20 | Source 1 · checked 2026-08-20Source 2 · checked 2026-08-20Source 3 · checked 2026-08-20Source 4 · checked 2026-08-20 |
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