| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | Last year's cycle (2026): $4,000; 2027: Unconfirmed — check official site | Unconfirmed — check official site | $699–$2,500 (2027 cycle) |
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| Financial aid | Unconfirmed — check official site | Last year's cycle (2026): Free for U.S. families with adjusted gross income under $80,000; need-based aid up to full cost: Amount: Unconfirmed — check official site. Aid for international students is decided case by case.; 2027: Unconfirmed — check official site | Limited need-based scholarships: Amount: Unconfirmed — check official site. Not for the residential portion and not for international students; separate GI Partners need-based scholarships for Boston-area rising seniors. (2027 cycle) |
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| Expenses and aid conditions | Last year's cycle (2026): Non-refundable registration fee: $50. Payable by check or wire transfer with the application.; Student Health Services fee (flat), listed with the room package: $66; Optional prepaid meal plan: $600. Refill-as-you-go is also possible.; 2027: Unconfirmed — check official site | Last year's cycle (2026): Free for U.S. families with adjusted gross income under $80,000; need-based aid up to full cost: Amount: Unconfirmed — check official site. Aid for international students is decided case by case.; 2027: Unconfirmed — check official site | Residential fee ($699 per week; housing, three meals a day, supervision): $699–$2,097. On top of tuition; $2,097 for a three-week program.; Seat deposit ($200 one-week; $500 three-week or remote): $200–$500; Optional airport transportation (one way $50-$75, round trip $99): $50–$99; Optional linen rental for residential students: $50; Limited need-based scholarships: Amount: Unconfirmed — check official site. Not for the residential portion and not for international students; separate GI Partners need-based scholarships for Boston-area rising seniors. (2027 cycle) |
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| Stipend or pay | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Eligibility | Grades 9–12; Grade timing: Unconfirmed — check official site | Grades 10–12; Grade timing: Unconfirmed — check official site | Grades 6–12 and first-year college (provider uses rising grades) |
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| Additional eligibility | Minimum age 16; Requirement: Open to grades 9–12; Requirement: At least 16 years old on or before July 4 of the program year, with no exceptions; Requirement: Unweighted GPA of 95/100 (3.8/4.0); Requirement: Standardized test scores (PSAT/SAT/ACT/AP/IB/Regents) at or above the 60th percentile; Requirement: At least three of English, Chemistry, Mathematics/Calculus, Physics and Biology; Requirement: International students must already hold documents to be legally present in the US for the program; no visa support | Ages 14–18; Requirement: Open to grades 10–12; Requirement: Have completed 9th grade (or its equivalent) by the first day of the program; Requirement: Not yet enrolled as a full-time college or university student; Requirement: Graduating seniors may attend in the summer between high school and college or during a gap year | Requirement: Open to rising grades 6–13; Requirement: One-week and pre-high-school programs: perform at grade level or above |
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| Session dates or duration | Last year's cycle (2026): Starts June 24, 2026; Ends August 7, 2026; 7 weeks; 2027: Unconfirmed — check official site | Starts June 27, 2027; Ends August 7, 2027; 6 weeks (2027 cycle) | Catalog terms: 1–3 weeks; 2027: Unconfirmed — check official site |
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| Format | In person | In person | In person / Online |
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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 | Stony Brook, NY | Boston, MA | Boston, Waltham, Wellesley, Weston, MA |
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| Selection and application | Selection: Non-rolling review after the deadline using demanding age, GPA, test, coursework, transcript, recommendation, leadership, and application criteria. Application materials: Three letters of recommendation, one from a science teacher, submitted by the writers | 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 letter of recommendation | Selection: Three-week and remote programs used competitive rolling review based on academic record, curiosity, subject commitment, perspective, and experience. One-week and pre-high-school programs were capacity-based registration. Application materials: Three-week programs: online application with an essay |
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| Official sources | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-10-24Source 5 · checked 2026-10-09Source 6 · checked 2026-08-22Source 7 · checked 2026-08-22Source 8 · checked 2026-08-22 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-20Source 5 · checked 2026-08-20Source 6 · checked 2026-08-20Source 7 · checked 2026-08-20 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-21Source 5 · checked 2026-08-20 |
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