| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | Last year's cycle (2026): $5,518; 2027: Unconfirmed — check official site | Last year's cycle (2026): $7,401; 2027: Unconfirmed — check official site | Last year's cycle (2026): $2,500–$15,200; 2027: Unconfirmed — check official site |
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| Financial aid | Last year's cycle (2026): 2026 need-based application and program assistance: Up to $5,564. Could assist with the $46 application fee and $5,518 program cost based on family income, family size and available funds; actual award not guaranteed.; 2027: Unconfirmed — check official site | Unconfirmed — check official site | Last year's cycle (2026): Need-based or partner aid: Amount: Unconfirmed — check official site. Apply with the admission application; ordinary two-to-eight-week awards were partial, first-come, limited, and not guaranteed. One-week and partner routes followed different tables.; 2027: Unconfirmed — check official site |
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| Expenses and aid conditions | Last year's cycle (2026): 2026 COSMOS application fee: $46. Nonrefundable; pending fee-waiver review could change when or whether payment was required.; Credit-card transaction fee on program payments: Amount: Unconfirmed — check official site. Approximately 2.5% when paying program costs by credit card; application fee exempt.; 2026 need-based application and program assistance: Up to $5,564. Could assist with the $46 application fee and $5,518 program cost based on family income, family size and available funds; actual award not guaranteed.; Full-financial-aid attendance deposit: $200. Required only for admitted students offered full aid and refunded to the legal guardian after successful completion.; 2027: Unconfirmed — check official site | Last year's cycle (2026): 2026 application fee: $85. Nonrefundable.; Enrollment deposit: $1,000. Nonrefundable and applied to the total.; Course materials and academic field trips: $300. Required 2026 fee.; Program and health-center fees: $429. $325 program fee plus $104 health-center fee.; Residential room and board: $3,440. Shared room and specified meals; not available as an option to international students because they must reside.; 2027: Unconfirmed — check official site | Last year's cycle (2026): 2026 application fee: $75. Automatically waived for applicants completing the aid section with required documents and for approved partner applicants.; Enrollment deposit after admission: $1,000. Nonrefundable, due within seven days, and credited to the account.; Need-based or partner aid: Amount: Unconfirmed — check official site. Apply with the admission application; ordinary two-to-eight-week awards were partial, first-come, limited, and not guaranteed. One-week and partner routes followed different tables.; 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; Grade timing: Unconfirmed — check official site | Grades 9–12 when applying; check the provider's rules for graduating seniors |
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| Additional eligibility | Residency: Attend high school in person in California; Requirement: Be rising into grade 9, 10, 11 or 12 for the program fall year; Requirement: Attend high school in person in California; Requirement: Demonstrate academic excellence and preparation for the selected STEM cluster; Requirement: Complete cluster-specific course prerequisites; Requirement: Live on the host UC campus for the full program; Requirement: Be a first-time COSMOS participant; Exclusion: Students not attending a California high school in person; Exclusion: Students who previously attended any COSMOS program; Exclusion: Applicants outside the rising-grade 9-12 range; Exclusion: Applicants unable to live on campus for the full program; Exclusion: Late application, supporting, payment or admission materials; Exclusion: Assuming a 3.5 GPA is an absolute statewide minimum rather than the published typical profile | Residency: Domestic and international high-school students; Requirement: Complete at least grade 9 before the program; Requirement: Pursue a rigorous high-school curriculum; Requirement: Attend every class from the first day with no late arrival; Requirement: International participants must obtain required immigration documents and meet health-insurance requirements; Exclusion: Late arrival or partial attendance was not allowed; Exclusion: International applicants could not choose commuter status; Exclusion: Admission to the summer program does not constitute or guarantee USC undergraduate admission | Minimum age 14; Requirement: Be a current high-school student in the grade and age range listed for the specific course; Requirement: Three-week Immersion generally accepted current grades 9-11 age 14+; Requirement: Four-week Practicum generally accepted current grades 10-11 age 15+; Requirement: Meet any course-specific background requirements shown in the course finder; Requirement: Submit all application materials and guardian confirmation; Exclusion: Eligibility is course-specific; grade 9-12 does not imply access to every program; Exclusion: Students already admitted to UChicago College use a different registration process; Exclusion: Most nonlocal residential participants must live on campus; only eligible Chicagoland two- and three-week students may commute; Exclusion: UChicago does not provide ESL instruction or ESL support; Exclusion: Visa rules differ for noncredit short programs and credit-bearing three- or four-week residential programs |
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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 | Catalog terms: 1–8 weeks; 2027: Unconfirmed — check official site |
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| Format | In person | In person | In person / Online |
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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 | Residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Davis, California, Irvine, California, Los Angeles, California, Merced, California, San Diego, California, Santa Cruz, California, UC Davis, UC Irvine, UCLA, UC Merced, UC San Diego, UC Santa Cruz | Los Angeles, California | Chicago, Wyoming field site for Stones and Bones, Illinois, Remote worldwide subject to course/visa/time-zone rules |
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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: One personal statement; One required teacher recommendation, with two recommended | Selection: Rolling admission based on academic preparation, essay, recommendation, transcript, and course capacity; popular classes can fill early. Application materials: Applicant-written 300-500 word essay; One online recommendation from a teacher, counselor, or mentor | Selection: Holistic course-specific admission based on the complete application and prerequisites; some courses and aid pools are highly competitive. UChicago does not publish one umbrella acceptance rate. Application materials: Program supplement and short essay; One teacher recommendation in a subject related to the intended course; up to three may be requested |
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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 2026-08-22Source 6 · checked 2026-08-22Source 7 · checked 2026-08-20 | Source 1 · checked 2026-08-21Source 2 · checked 2026-08-21Source 3 · checked 2026-08-21 | Source 1 · checked 2026-08-21Source 2 · checked 2026-08-21Source 3 · checked 2026-08-21Source 4 · checked 2026-08-21Source 5 · checked 2026-08-20Source 6 · checked 2026-08-20 |
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