| Application deadline | Unconfirmed — check official site | November 15, 2026 (2027 cycle) | 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 | Catalog terms: $7,465; 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 | Last year's cycle (2026): Fellowship project grant: $0–$1,000. Need- and merit-based, discretionary, and not guaranteed; eligible uses include project expenses or compensation for paid work forgone.; Later Research Scholar award: $2,000–$10,000. Historical 2026 Scholar-stage terms: top three received $10,000 and other selected Scholars at least $2,000. This is not guaranteed to a Fellow and 2027 terms are not announced.; 2027: Unconfirmed — check official site | Catalog terms: Verified-need scholarship: Amount: Unconfirmed — check official site. Scholarships are restricted to applicants whose need can be reliably verified. Award size, documents, budget, and timing vary and are not guaranteed.; 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): Application: $0. No application fee.; Fellowship project grant: $0–$1,000. Need- and merit-based, discretionary, and not guaranteed; eligible uses include project expenses or compensation for paid work forgone.; Later Research Scholar award: $2,000–$10,000. Historical 2026 Scholar-stage terms: top three received $10,000 and other selected Scholars at least $2,000. This is not guaranteed to a Fellow and 2027 terms are not announced.; 2027: Unconfirmed — check official site | Catalog terms: Possible laboratory-material fee: $0–$149.3. Only disciplines needing laboratory materials may charge this fee; Pioneer caps it at 2% of $7,465 tuition, or $149.30. Actual applicability and amount depend on placement.; Verified-need scholarship: Amount: Unconfirmed — check official site. Scholarships are restricted to applicants whose need can be reliably verified. Award size, documents, budget, and timing vary and are not guaranteed.; 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) | 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 | Ages 14–20; Residency: Applicants may be based almost anywhere, except where UK sanctions or operational payment restrictions prevent participation; Requirement: Meet the age 14-20 and pre-university requirements on the dates stated for the selected Foundations and Fellowship stages; Requirement: Have not started university or other tertiary education; gap-year applicants and applicants who left a course may apply; Requirement: Be able to participate in English; Requirement: Commit at least 10 flexible hours per week for eight weeks; Exclusion: Current university or tertiary-education students; Exclusion: Non-Trivial Ventures employees and their family members; Exclusion: Applicants whose location or status is restricted by applicable UK sanctions | Requirement: Be a high-school student in grade 9-12 under the current admission description; Requirement: Demonstrate academic readiness, intellectual curiosity, independence, integrity, and sustained interest in one or more proposed research areas; Requirement: Be able to read scholarly material, write in academic English, attend live online seminars and professor meetings, and complete intensive independent work; Requirement: Secure counselor support before submission and arrange the official transcript plus counselor or teacher assessment after submission within the published window; Requirement: Complete the video interview and proctored timed writing if the initial application passes screening; Requirement: Commit to the complete seminar, literature-review, topic-development, individual-mentoring, and original-paper process for the assigned term; Exclusion: Applicants are not guaranteed admission, a specific discipline, a particular professor, a scholarship, publication, college admission, or transfer-credit acceptance; Exclusion: Professors do not choose students and are not identified to applicants before admission and matching; Exclusion: Test scores are optional, not a stated admission requirement; Exclusion: A discipline can fill before the final deadline, and an application may receive conditional or waitlist status; Exclusion: The current program costs $7,465 and spans multiple academic divisions |
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| Session dates or duration | Catalog terms: 4 weeks; 2027: Unconfirmed — check official site | Catalog terms: 8 weeks; 2027: Unconfirmed — check official site | Unconfirmed — check official site |
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| Format | In person | Online | 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 | Non-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 | Applicants from almost anywhere; UK sanctions and payment restrictions apply | Online and available to high-school students 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: Non-Trivial plans approximately 600 Research Foundations finalists and about 200 Research Fellows for 2027; final cohort sizes may change and no acceptance rate is published for the cycle. | Selection: Pioneer uses holistic review of academic history, essays, interests, school materials, a video interview, and proctored timed writing. Decisions generally take six to eight weeks and may be admit, conditional, waitlist, or deny. The official pages publish no acceptance rate or automatic GPA/test threshold, and placement capacity varies by discipline. Application materials: Required short-answer responses and longer essay; Video interview after initial screening |
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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 2026-10-09Source 3 · checked 2026-10-09Source 4 · checked 2026-10-09Source 5 · checked 2026-08-21Source 6 · checked 2026-08-21Source 7 · checked 2026-08-21 | Source 1 · checked 2026-08-20Source 2 · checked 2026-08-20Source 3 · checked 2026-08-20Source 4 · checked 2026-08-20 |
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