| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | $5,793 (2027 cycle) | $6,450–$14,950 (2027 cycle) | Catalog terms: Free attendance; check separate expenses; 2027: Unconfirmed — check official site |
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| Financial aid | Need-based financial assistance for application and program costs: Amount: Unconfirmed — check official site. Based on family income, family size and available COSMOS resources. (2027 cycle) | Need-based tuition discount: Amount: Unconfirmed — check official site. 10–80% off online tuition or 10–50% off San Francisco tuition; no full-ride scholarships; parents' income statements for the last 12 months are required. (2027 cycle) | Unconfirmed — check official site |
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| Expenses and aid conditions | Application fee: Amount: Unconfirmed — check official site. Non-refundable; fee waivers can be requested.; Need-based financial assistance for application and program costs: Amount: Unconfirmed — check official site. Based on family income, family size and available COSMOS resources. (2027 cycle) | Non-refundable deposit (counts toward tuition): $700. Due within 14 days of acceptance; the remaining tuition is charged 14 days after the deposit.; Need-based tuition discount: Amount: Unconfirmed — check official site. 10–80% off online tuition or 10–50% off San Francisco tuition; no full-ride scholarships; parents' income statements for the last 12 months are required. (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 | Grades 9–12 (provider uses rising grades) | Unconfirmed — check official site | Grades 9–12; Grade timing: Unconfirmed — check official site |
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| Additional eligibility | Residency: California high school students only; Requirement: Open to rising grades 9–12; Requirement: Demonstrated academic excellence (a typical COSMOS student has a GPA of 3.5 or above) | Ages 14–17; Requirement: Must currently be in high school; not open to college students or other adults | Citizenship: U.S. citizen or permanent resident; Requirement: Open to grades 9–12; Requirement: Interest in mathematics or cybersecurity |
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| Session dates or duration | Catalog terms: 4 weeks; 2027: Unconfirmed — check official site | Catalog terms: 4 weeks; 2027: Unconfirmed — check official site | Last year's cycle (2026): Starts August 3, 2026; Ends August 7, 2026; 1 week; 2027: Unconfirmed — check official site |
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| Format | In person | In person / Online | In person |
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| Housing and supervision | Residential. Supervision and housing details: 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 | Davis, Irvine, Los Angeles, Merced, San Diego, Santa Cruz, CA | Berkeley, CA | Cambridge, MA |
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| Selection and application | Selection: Each of six campuses accommodates roughly 160-200 students, and clusters typically enroll 20-25 with a commonly reported 5:1 student-to-faculty ratio. Admissions are competitive and based on academic merit relative to the selected topic, but applicant count and statewide acceptance rate were not published. Application materials: Online application with one personal statement; One teacher recommendation (two recommended) | Selection: Leangap reviews applicants for fit using motivation, initiative, collaboration, problem solving, skills, and impact. Each 2026 format was limited to 40 seats, but no applicant count or acceptance rate is published. Application materials: Parents' income statements for the last 12 months (financial aid applicants) | Selection: MIT Lincoln Laboratory selects a workshop cohort from completed applications and teacher recommendations. It does not publish the current cohort size, number of applicants, evaluation rubric or acceptance rate. Application materials: Teacher recommendation |
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| Official sources | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-22Source 5 · checked 2026-08-22Source 6 · checked 2026-08-22Source 7 · checked 2026-08-20 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-10-24Source 5 · checked 2026-08-21Source 6 · checked 2026-08-20 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-09 |
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