| Application deadline | Unconfirmed — check official site | March 19, 2027 (2027 cycle) | Unconfirmed — check official site |
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| Cost | Unconfirmed — check official site | Unconfirmed — check official site | Last year's cycle (2026): $3,900; 2027: Unconfirmed — check official site |
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| Financial aid | 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 | Unconfirmed — check official site | Unconfirmed — check official site |
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| Expenses and aid conditions | 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 | Catalog terms: In-person breakfast and lunch: $0. Provided during the one-day Bloomington session.; 2027: Unconfirmed — check official site | 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 | Grades 10–12; Grade timing: Unconfirmed — check official site | Grades 11–12 (provider uses rising grades) | Grades 9–12; Grade timing: Unconfirmed — check official site |
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| Additional eligibility | 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 11–12; Requirement: Minimum cumulative high school GPA of 3.5 on a 4.0 scale | Minimum age 14; Residency: US; Requirement: Open to grades 9–12; Requirement: Must be 14 or older by the start of the program; Requirement: Good programming skills (Python, Java, C/C++ or other) and an understanding of computer science fundamentals; Requirement: Must be currently studying and residing in the United States; Requirement: Able to commit to the full commuter or virtual program schedule |
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| Session dates or duration | Starts June 27, 2027; Ends August 7, 2027; 6 weeks (2027 cycle) | Catalog terms: 0.14–1.14 weeks; 2027: Unconfirmed — check official site | Last year's cycle (2026): Starts June 29, 2026; 6 weeks; 2027: Unconfirmed — check official site |
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| Format | In person | In person / Online | In person / Online |
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| Housing and supervision | Residential. Supervision and housing details: Unconfirmed — check official site | Non-residential. Supervision and housing details: Unconfirmed — check official site | Non-residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Boston, MA | Bloomington, IN | Stony Brook, NY |
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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 letter of recommendation | Selection: Kelley calls KWLI selective, limits seats, and reviews cumulative GPA and application essays after the deadline. It does not publish applicant totals, cohort sizes by session, acceptance rates, geographic quotas, or scoring weights. Application materials: 100-word statement on why you hope to participate | Selection: Mentors evaluate application strength and fit to limited project capacity; each accepted student receives a mentor assignment with the offer. Application materials: Essay (maximum 2 pages) on a computing or data analytics interest, programming skills and past projects; Teacher recommendation letter (science, math or computer science) |
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| Official sources | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-20Source 5 · checked 2026-08-20Source 6 · checked 2026-08-20Source 7 · checked 2026-08-20 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24 |
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