| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | Last year's cycle (2026): $4,580–$6,580; 2027: Unconfirmed — check official site | Last year's cycle (2026): $4,750; 2027: Unconfirmed — check official site | $3,995–$6,990 (2027 cycle) |
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| Financial aid | Last year's cycle (2026): Summer application fee waiver: Amount: Unconfirmed — check official site. For U.S. citizens and permanent residents with household income under $80,000 or in a low-income support program; limited and first-come, first-served.; 2027: Unconfirmed — check official site | Last year's cycle (2026): Need-based partial scholarship: Amount: Unconfirmed — check official site. Requested within the online application; does not affect the admission decision.; 2027: Unconfirmed — check official site | Partial tuition-assistance scholarships: Amount: Unconfirmed — check official site. Limited; based on financial need, academic achievement, promise and available funds; considered only after acceptance. (2027 cycle) |
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| Expenses and aid conditions | Last year's cycle (2026): Summer application fee: $95. Nonrefundable.; Summer application fee waiver: Amount: Unconfirmed — check official site. For U.S. citizens and permanent residents with household income under $80,000 or in a low-income support program; limited and first-come, first-served.; 2027: Unconfirmed — check official site | Last year's cycle (2026): Need-based partial scholarship: Amount: Unconfirmed — check official site. Requested within the online application; does not affect the admission decision.; 2027: Unconfirmed — check official site | Application fee: $0; Partial tuition-assistance scholarships: Amount: Unconfirmed — check official site. Limited; based on financial need, academic achievement, promise and available funds; considered only after acceptance. (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 11–12 and first-year college (provider uses rising grades) | Grades 11–12 (provider uses rising grades) | Grades 11–12 (provider uses rising grades) |
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| Additional eligibility | Minimum age 16; Requirement: Open to rising grades 11–13; Requirement: Medical students are not eligible | Citizenship: US citizen; Citizenship: US permanent resident; Requirement: Open to rising grades 11–12; Requirement: Strong understanding of English | Requirement: Open to rising grades 11–12; Requirement: Proof of English proficiency may be required for students whose first language is not English or who attend a non-English-speaking school outside the United States |
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| Session dates or duration | Last year's cycle (2026): Starts July 13, 2026; Ends August 7, 2026; 2 weeks; 2027: Unconfirmed — check official site | Last year's cycle (2026): Starts July 19, 2026; Ends August 1, 2026; 2 weeks; 2027: Unconfirmed — check official site | Starts July 11, 2027; Ends August 6, 2027; 2–4 weeks (2027 cycle) |
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| Format | In person / Online | In person | In person |
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| Housing and supervision | Non-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 | Stanford, CA | Troy, NY | Boston, MA |
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| Selection and application | Selection: Stanford describes CSI as highly competitive and says it receives more qualified applicants than it can accept, but it does not publish current application totals, cohort capacities by track, acceptance rate, waitlist size, or scoring cutoffs. Application materials: Essay prompt response(s); One recommendation from a recent STEM teacher | Application materials: Essay; Recommendations | Unconfirmed — check official site |
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| Official sources | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-10-09Source 5 · checked 2026-10-09Source 6 · checked 2026-08-20 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-09 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-10Source 4 · checked 2026-10-10Source 5 · checked 2026-08-21Source 6 · checked 2026-08-21Source 7 · checked 2026-08-20 |
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