| Application deadline | January 13, 2027 (2027 cycle) | April 1, 2027 (2027 cycle) | December 31, 2026 (2027 cycle) |
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| Cost | $4,180–$15,980 (2027 cycle) | $600 (2027 cycle) | Unconfirmed — check official site |
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| Financial aid | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Expenses and aid conditions | 2027 application fee: $75 (2027 cycle) | Ohio State residence hall, linens, and supervision: $0. Included in the $600 fee.; Program meals: $0. Included in the $600 fee. (2027 cycle) | 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 9–11 when applying; summer rising grade is one higher | Grades 10–11 when applying; summer rising grade is one higher |
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| Additional eligibility | Ages 16–18; Citizenship: International students may apply to eligible formats with visa/English requirements; Citizenship: Financial aid is limited to U.S. citizens, permanent residents, and DACA recipients; Residency: Residential students live on campus; Residency: Commuters must live with a parent/guardian or approved adult age 25+ within reasonable commuting distance in New England; Residency: Online students participate from home; Requirement: Graduate high school and enter college in 2027, 2028 or 2029.; Requirement: Be at least 16 by June 13, 2027 and not turn 19 before July 31, 2027.; Requirement: Show maturity and academic readiness for intensive college-level work; Requirement: Meet selected-course prerequisites; Requirement: Submit English-proficiency evidence if English is not the native language; Requirement: Clear the calendar for the full program, especially residential study; Exclusion: An applicant may apply to only one Harvard Summer School high-school program in a year; Exclusion: International students using a Harvard-sponsored I-20 cannot take online classes; Exclusion: Participation does not guarantee Harvard College admission or another institution's acceptance of credit; Exclusion: No minimum GPA or required PSAT/SAT/ACT score is published | Residency: Ohio resident; Requirement: Be a current high-school freshman, sophomore, or junior; Requirement: Submit a teacher recommendation; Requirement: Show ability to work on a team and willingness to learn new STEM concepts; Requirement: Be available for the full residential session; Exclusion: Students outside Ohio are not eligible; Exclusion: Individualized scholarships are not available | Requirement: Current high-school sophomores and juniors with at least a 3.0 GPA. English-proficiency, passport and financial-document requirements depend on nationality and route. The separate UM Academies programme has different grade and credit rules. |
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| Session dates or duration | Catalog terms: 4–7 weeks; 2027: Unconfirmed — check official site | Starts June 6, 2027; Ends June 17, 2027; 2 weeks (2027 cycle) | Starts June 28, 2027; Ends July 15, 2027 (2027 cycle) |
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| Format | In person / Online | In person | In person |
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| Housing and supervision | Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site | Unconfirmed — check official site |
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| Location | Cambridge, Massachusetts | Columbus, Ohio, Ohio Supercomputer Center and The Ohio State University campus | Coral Gables, Florida |
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| Selection and application | Selection: Harvard evaluates essays, transcripts/current grades, counselor report, GPA, maturity, readiness, and program fit holistically; it publishes no minimum GPA and does not require standardized academic tests. Application totals, admit rate, option/course capacities, waitlist odds, and scholarship odds are not published. Application materials: Student-created online application and short essays | Selection: Competitive and space-limited; applications are evaluated for teamwork and willingness to learn, but capacity and acceptance rate are not published. Application materials: One teacher recommendation | Application materials: Submit two 300–600-word essays, academic records, counselor or school-profile information, a teacher recommendation and parent permission. English, passport and financial documents apply where required. Portal details follow the initial application. |
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| Official sources | Source 1 · checked 2026-10-09Source 2 · checked 2026-10-09Source 3 · checked 2026-10-09Source 4 · checked 2026-10-09Source 5 · checked 2026-10-09 | Source 1 · checked 2026-10-09Source 2 · checked 2026-10-09Source 3 · checked 2026-08-22 | Source 1 · checked 2026-10-09Source 2 · checked 2026-10-09Source 3 · checked 2026-10-09Source 4 · checked 2026-08-21Source 5 · checked 2026-08-21Source 6 · checked 2026-08-20 |
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