| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | $5,793 (2027 cycle) | Last year's cycle (2026): $1,420–$1,791; 2027: Unconfirmed — check official site | 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) | Last year's cycle (2026): Limited partial scholarships (no award exceeds 30% of the package fee): Amount: Unconfirmed — check official site. Competitive and contingent on available funding.; 2027: Unconfirmed — check official site | Catalog terms: Need-based scholarship: Amount: Unconfirmed — check official site. For students and families to whom the fee is a hardship; requested through a form.; 2027: 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) | Last year's cycle (2026): Limited partial scholarships (no award exceeds 30% of the package fee): Amount: Unconfirmed — check official site. Competitive and contingent on available funding.; 2027: Unconfirmed — check official site | Catalog terms: Need-based scholarship: Amount: Unconfirmed — check official site. For students and families to whom the fee is a hardship; requested through a form.; Early-bird registration discount: $50. Also discounts for OU staff/faculty and multiple-child registrations.; 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 | Grades 9–12 (provider uses rising grades) | Grades 10–12 (provider uses rising grades) | 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) | Minimum age 13; Requirement: Open to rising grades 10–12; Requirement: Unweighted academic average of 3.0 or better (a GPA Exception Appeal is possible); Requirement: Graduating seniors are also eligible | Ages 13–18; Requirement: Open to grades 9–12; Requirement: Currently attending high school or homeschooling at a high school level; students entering high school or just finishing high school are welcome; Requirement: Able to handle yourself appropriately on a college campus |
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| Session dates or duration | Catalog terms: 4 weeks; 2027: Unconfirmed — check official site | Last year's cycle (2026): Starts July 13, 2026; Ends July 31, 2026; 3 weeks; 2027: Unconfirmed — check official site | Last year's cycle (2026): Starts July 13, 2026; Ends July 17, 2026; 0.71 weeks; 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 | Non-residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Davis, Irvine, Los Angeles, Merced, San Diego, Santa Cruz, CA | College Park, MD | Rochester, MI |
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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: Competitive and space-limited, with applications reviewed first-come, first-served after requirements are met. Early applicants are more likely to receive their first course choice; no overall acceptance rate is published. | Selection: All campers require preapproval based on age, schooling, maturity, cooperation, and curiosity. Oakland does not publish capacity, applicant volume, acceptance rate, or scholarship selection rate. |
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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 2026-08-22Source 6 · checked 2026-08-22 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-08-21 |
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