| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | $2,499–$16,999 (2027 cycle) | Unconfirmed — check official site | $5,793 (2027 cycle) |
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| Financial aid | Limited scholarship assistance: Amount: Unconfirmed — check official site. Primarily provided through mentoring organizations; individual scholarships are limited. (2027 cycle) | Last year's cycle (2026): Need-based tuition scholarship for admitted students: Amount: Unconfirmed — check official site. Limited and competitive; requires a separate application with essays.; 2027: Unconfirmed — check official site | 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) |
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| Expenses and aid conditions | Summer Discovery application fee: $100. Nonrefundable and not applied to tuition; scholarship applicants denied aid may receive it back subject to listed program exceptions.; Limited scholarship assistance: Amount: Unconfirmed — check official site. Primarily provided through mentoring organizations; individual scholarships are limited. (2027 cycle) | Last year's cycle (2026): Non-refundable application fee: $50. Waived for applications received by the Early Bird deadline.; Health insurance fee (international students only): $90; Need-based tuition scholarship for admitted students: Amount: Unconfirmed — check official site. Limited and competitive; requires a separate application with essays.; 2027: Unconfirmed — check official site | 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) |
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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; Grade timing: Unconfirmed — check official site | Grades 8–12 when applying; check the provider's rules for graduating seniors | Grades 9–12 (provider uses rising grades) |
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| Additional eligibility | Residency: Domestic and international options are offered; destination and visa/entry requirements vary; Requirement: Be in grade 9-12 for the high-school offering; Requirement: Choose a campus and course matching the published grade and prerequisite rules; Requirement: Submit a complete application and $100 fee; Requirement: Meet program-specific health, conduct, housing and travel requirements; Requirement: Pay the updated 2027 deposit and balance after acceptance; Exclusion: Campus partnerships do not confer university student status or admission; Exclusion: Courses, grade ranges, dates, residential/commuter availability and academic prerequisites differ; Exclusion: The stale 2026 payment schedule is not a confirmed 2027 deadline; Exclusion: A certificate or recognition letter is not necessarily university credit or a transcript; Exclusion: Rolling review does not guarantee a preferred campus, course or roommate | Requirement: Open to students currently in grades 8–12 when applying; Requirement: Good academic standing with at least a 2.0 GPA; Requirement: International students need no visa or TOEFL score for the Academies | 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) |
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| Session dates or duration | Catalog terms: 2–6 weeks; 2027: Unconfirmed — check official site | Last year's cycle (2026): Starts June 7, 2026; Ends June 19, 2026; 2 weeks; 2027: Unconfirmed — check official site | Catalog terms: 4 weeks; 2027: Unconfirmed — check official site |
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| Format | In person | In person | In person |
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| Housing and supervision | 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 | Los Angeles, New Haven, Hanover, Ann Arbor, Washington, Berkeley, Austin, Santa Barbara, Philadelphia, Vancouver, Oxford, Cambridge, Multiple university campuses; residential and commuter options vary by listing | Washington, DC | Davis, Irvine, Los Angeles, Merced, San Diego, Santa Cruz, CA |
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| Selection and application | Selection: Qualified students are admitted first come on a rolling basis until program, course and housing capacity fills. Highly specialized partner programs may have additional selection rules. | Selection: Earlier Academy admissions described rolling review and first-come seat registration; next-cycle availability is not established. Application materials: 300- to 500-word personal statement | 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) |
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| Official sources | Source 1 · checked 2026-08-22Source 2 · checked 2026-08-22Source 3 · checked 2026-08-22Source 4 · checked 2026-08-22Source 5 · checked 2026-08-22 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-22Source 5 · checked 2026-08-22 | 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 |
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