| 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 | Catalog terms: Free attendance; check separate expenses; 2027: Unconfirmed — check official site | Last year's cycle (2026): $6,450–$9,950; 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): 2026 need-based tuition discount: Amount: Unconfirmed — check official site. 10-80% discount online or 10-50% San Francisco; no full rides; parents' prior 12 months of income statements required. 2027 availability TBC.; 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 | Unconfirmed — check official site | Last year's cycle (2026): 2026 enrollment deposit: $700. Nonrefundable, credited toward tuition, and due within 14 days of acceptance.; 2026 need-based tuition discount: Amount: Unconfirmed — check official site. 10-80% discount online or 10-50% San Francisco; no full rides; parents' prior 12 months of income statements required. 2027 availability TBC.; 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 9–12; Grade timing: Unconfirmed — check official site | Grades 9–12; Grade timing: Unconfirmed — check official site |
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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 | Citizenship: U.S. citizen; Citizenship: U.S. permanent resident; Requirement: Be enrolled in high school; Requirement: Be a U.S. citizen or permanent resident; Requirement: Have an interest in mathematics or cybersecurity; Requirement: Submit the application and teacher recommendation by the same deadline; Requirement: Arrange reliable daily transportation and any needed housing; Exclusion: Students who are neither U.S. citizens nor permanent residents are not eligible under the published rule; Exclusion: The workshop is not residential and does not provide housing or transportation; Exclusion: No formal course prerequisite is required, despite advanced mathematical topics; Exclusion: Underrepresented groups are strongly encouraged to apply, but encouragement does not guarantee selection | Requirement: Be a high-school student/teen applicant; Requirement: Commit full time to the four-week program and team startup work; Requirement: Show interests, passions, initiative, drive, problem solving, and collaboration in the application; Requirement: No prior business or coding knowledge is required; Requirement: Residential students must live in program housing; no commuter option was offered in 2026; Exclusion: The current pages do not publish an exact age range, grade-by-grade rule, citizenship restriction, visa service, English-proficiency standard, or 2027 eligibility terms; Exclusion: A priority-list signup does not confer admission; Exclusion: Admission and financial aid are reviewed separately; no full-ride aid was offered in 2026 |
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| Session dates or duration | 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 | Catalog terms: 4 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 | 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, 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 | Cambridge, Massachusetts | San Francisco, Berkeley, San Francisco Bay Area residential program hosted at UC Berkeley in 2026, Online worldwide |
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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: 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: One teacher recommendation | 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 prior 12 months when requesting need-based aid |
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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 2026-10-09Source 2 · checked 2026-10-09 | Source 1 · checked 2026-08-21Source 2 · checked 2026-08-21Source 3 · checked 2026-08-21Source 4 · checked 2026-08-20 |
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