| Application deadline | February 15, 2027 (2027 cycle) | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | Unconfirmed — check official site | Unconfirmed — check official site | Last year's cycle (2026): $550; 2027: Unconfirmed — check official site |
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| Financial aid | 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 SLIYS financial aid: Amount: Unconfirmed — check official site. Applicants requested consideration in Additional Comments; award amounts, budget, documentation, and guarantees were not published.; 2027: Unconfirmed — check official site |
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| Expenses and aid conditions | 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): Accepted-scholar seat deposit: $25. Nonrefundable, due within two weeks of acceptance, and included in rather than added to the total tuition.; Need-based SLIYS financial aid: Amount: Unconfirmed — check official site. Applicants requested consideration in Additional Comments; award amounts, budget, documentation, and guarantees were not published.; 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 | Unconfirmed — check official site | Grades 10–12; Grade timing: Unconfirmed — check official site | Grades 9–12; Grade timing: Unconfirmed — check official site |
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| Additional eligibility | Requirement: The programme serves rising high-school seniors and recent graduates. The benefits page still states 2026 graduation classes, citizenship and age conditions; confirm their 2027 applicability rather than shifting the years automatically. | 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 | Ages 13–18; Residency: High-school students worldwide who can attend all live Eastern Time sessions; Requirement: Enter grade 9, 10, 11, or 12 in the upcoming school year; Requirement: Show academic and personal readiness for competitive interactive linguistics study; 3.0 GPA is recommended, not required; Requirement: Attend all five live five-hour weekdays for each selected week; Requirement: Use a laptop or desktop, webcam, microphone, headphones or earbuds, reliable internet, and quiet room; Requirement: Complete SLIYS 1 before enrolling in SLIYS 2; Requirement: Have a parent or legal guardian participate in the application; Exclusion: Students outside the entering-grade and typical age range without specific SLIYS approval; Exclusion: SLIYS 2-only applicants who have not previously completed SLIYS 1; Exclusion: Students unable to attend live; recorded catch-up is prohibited; Exclusion: A GPA below 3.0 is not an automatic exclusion, and a GPA above 3.0 is not a guarantee; Exclusion: Prior language or linguistics study is not presented as a universal requirement |
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| Session dates or duration | Starts June 20, 2027; Ends August 5, 2027 (2027 cycle) | Catalog terms: 6 weeks; 2027: Unconfirmed — check official site | Catalog terms: 1–2 weeks; 2027: Unconfirmed — check official site |
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| Format | In person | In person | Online |
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| Housing and supervision | Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site | Non-residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Lubbock, Texas | Boston, Boston University campus, Massachusetts | Worldwide live online participation aligned to Eastern Time |
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| Selection and application | Application materials: Submit the listed essays, transcript and test records, three online recommendation questionnaires with at least two teachers, and the top-five activity list. Do not add an extra resume or unrequested supplements. | 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: Admission is competitive and sessions can fill before the final deadline. Ohio State publishes no application count, admit rate, scoring rubric, class size by session, waitlist probability, or guarantee based on GPA. Application materials: One teacher recommendation for SLIYS 1 or 1-and-2 applicants; none for prior SLIYS 1 completers applying only to SLIYS 2 |
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| Official sources | Source 1 · checked 2026-10-15Source 2 · checked 2026-10-15Source 3 · checked 2026-10-09Source 4 · checked 2026-10-09Source 5 · checked 2026-08-21 | 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 2026-08-21Source 2 · checked 2026-08-21Source 3 · checked 2026-08-21Source 4 · checked 2026-08-21 |
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