| 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): $5,990–$7,390; 2027: Unconfirmed — check official site | Catalog terms: $7,465; 2027: 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): Financial aid: Amount: Unconfirmed — check official site. Awarded upon acceptance; applications reviewed first-come, first-served.; 2027: Unconfirmed — check official site | Catalog terms: Need-based scholarship: Amount: Unconfirmed — check official site. Limited; only where family financial need can be reliably verified, including through partner schools and non-profit organizations.; 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): Refundable damage deposit (2026): $150; Financial aid: Amount: Unconfirmed — check official site. Awarded upon acceptance; applications reviewed first-come, first-served.; 2027: Unconfirmed — check official site | Catalog terms: Need-based scholarship: Amount: Unconfirmed — check official site. Limited; only where family financial need can be reliably verified, including through partner schools and non-profit organizations.; Full-scholarship deposit (refunded after completing the program): Amount: Unconfirmed — check official site; 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 11–12 (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) | Ages 16–18; Requirement: Open to rising grades 11–12; Requirement: Has completed sophomore year of high school and is returning to high school in the fall; Requirement: A diagnosed learning difference is not required | Requirement: Open to grades 9–12; Requirement: Must demonstrate academic excellence and proficiency in English |
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| Session dates or duration | Catalog terms: 4 weeks; 2027: Unconfirmed — check official site | Starts July 10, 2027; Ends July 31, 2027; 3 weeks (2027 cycle) | Catalog terms: 10 weeks; 2027: Unconfirmed — check official site |
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| Format | 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 | Non-residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Davis, Irvine, Los Angeles, Merced, San Diego, Santa Cruz, CA | Putney, VT | 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: Online application with one personal statement; One teacher recommendation (two recommended) | Selection: Admissions reviews fit for the structured program; no applicant, cohort or acceptance count is published. Financial aid is limited and first-come after acceptance. Application materials: Educational recommendations (form included in the application); Parent/guardian statement; Interview by phone or online | 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: Short essays on each interest area; Long essay; Video interview and proctored timed writing test (if selected to advance) |
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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 2026-08-22Source 4 · checked 2026-08-20 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-20Source 5 · checked 2026-08-20 |
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