| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | Unconfirmed — check official site | Last year's cycle (2026): $885–$12,135; 2027: Unconfirmed — check official site | Unconfirmed — check official site |
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| Financial aid | 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 Arts & Sciences scholarship: Amount: Unconfirmed — check official site. Available to domestic and international students; amount varies and excludes travel, books/supplies, personal costs, computer, and Wi-Fi.; 2027: Unconfirmed — check official site | Last year's cycle (2026): Need-based fee and participant-travel assistance: Amount: Unconfirmed — check official site. SSP committed to cover 100% of demonstrated need; exact award depends on family circumstances and may include participant airfare or other required travel.; 2027: Unconfirmed — check official site |
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| Expenses and aid conditions | 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): Selective Arts & Sciences program application fee: $50. Nonrefundable; waivable for listed financial-hardship criteria. Registration-only programs may not charge it.; Post-admission enrollment deposit: $500. Nonrefundable for Summer Launch, Institutes, and Summer Scholars and deducted from total cost.; Optional 2026 commuter lunch plan for Summer Scholars: $375. Residential Scholars pricing includes room and meals.; Need-based Arts & Sciences scholarship: Amount: Unconfirmed — check official site. Available to domestic and international students; amount varies and excludes travel, books/supplies, personal costs, computer, and Wi-Fi.; 2027: Unconfirmed — check official site | Last year's cycle (2026): 2026 application fee: $0. Completely free to apply.; Need-based fee and participant-travel assistance: Amount: Unconfirmed — check official site. SSP committed to cover 100% of demonstrated need; exact award depends on family circumstances and may include participant airfare or other required travel.; 2027: Unconfirmed — check official site |
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| Stipend or pay | Unconfirmed — check official site | Unconfirmed — check official site | Last year's cycle (2026): Lost-wages stipend: $3,000; 2027: Unconfirmed — check official site |
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| Eligibility | Grades 10–12; Grade timing: Unconfirmed — check official site | Grades 10–12; Grade timing: Unconfirmed — check official site | Grade 11 when applying; summer rising grade is one higher |
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| Additional eligibility | 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 | Citizenship: Domestic and international eligibility varies by program; Arts & Sciences accepts international applicants subject to English and immigration requirements; Residency: National/international for many academic programs; Residency: St. Louis-area residency required for several paid research and environmental programs; Residency: Rural eligibility required for Rural Scholars Academy; Requirement: Select a specific WashU program and meet its grade, academic, course, location, and schedule requirements; Requirement: Summer Scholars applicants are current juniors/rising seniors; Requirement: Summer Institute and Launch applicants generally enter grades 10-12 depending on program; Requirement: Course prerequisites apply to some credit-bearing offerings; Requirement: International applicants may need English-proficiency and visa documentation; Exclusion: No single grade, residence, price, or application rule covers the whole umbrella; Exclusion: Local internships and field programs may exclude non-St. Louis-area applicants; Exclusion: Participation does not guarantee WashU undergraduate admission or admissions advantage; Exclusion: Credit transfer and high-school-credit recognition are controlled by the receiving school | Ages 15–18; Requirement: Be a current high-school junior; Requirement: Be at least 15 and not yet 19 during all program dates; Requirement: Complete for credit and a grade by June any high-school physics plus precalculus; Requirement: If the school does not offer physics, complete calculus for credit and a grade by June instead; Requirement: Commit exclusively to the entire assigned residential session; Exclusion: Current freshmen, sophomores and seniors; Exclusion: Self-study used in place of the required graded coursework; Exclusion: Applicants unable to attend the complete assigned session; Exclusion: Applying to more than one SSP project in the same cycle |
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| Session dates or duration | Catalog terms: 6 weeks; 2027: Unconfirmed — check official site | Catalog terms: 1–8 weeks; 2027: Unconfirmed — check official site | Catalog terms: 5 weeks; 2027: Unconfirmed — check official site |
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| Format | In person | In person / Online / Hybrid | In person |
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| Housing and supervision | Residential. Supervision and housing details: Unconfirmed — check official site | Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Boston, Boston University campus, Massachusetts | St. Louis, Missouri, Program-specific local field sites | Albion, Milledgeville, McMinnville, River Falls, Waterville, Bethlehem, Galesburg, 2026 campus assigned after admission; campus list can change by cycle |
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| Selection and application | 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: Selectivity ranges from registration-based online courses to holistic selective residential programs and competitive paid research. WashU does not publish one umbrella application count, acceptance rate, capacity, waitlist, or rubric; each linked unit controls its process. Application materials: For selective Arts & Sciences programs: short essays, $50 fee or qualifying waiver, transcript, and one teacher recommendation; Separate local-residency, research, portfolio, financial, rural, or employment materials for other WashU programs | Selection: Admission is limited and holistic. SSP reported about 700 participants admitted across every 2026 track, but did not publish Astrophysics application totals or a track-specific acceptance rate. Application materials: One required recommendation from a current school math or science educator; Optional second recommendation, preferably from a math or science educator |
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| Official sources | 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 2026-08-22Source 2 · checked 2026-08-22Source 3 · checked 2026-08-22Source 4 · checked 2026-08-22 | Source 1 · checked 2026-08-22Source 2 · checked 2026-08-22Source 3 · checked 2026-08-22Source 4 · checked 2026-08-22Source 5 · checked 2026-08-20 |
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