| Application deadline | January 25, 2027 (2027 cycle) | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | Catalog terms: Free attendance; check separate expenses; 2027: Unconfirmed — check official site | $5,793 (2027 cycle) | Last year's cycle (2026): $2,400–$5,200; 2027: Unconfirmed — check official site |
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| Financial aid | 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) | Last year's cycle (2026): Need-based financial aid: Amount: Unconfirmed — check official site; 2027: Unconfirmed — check official site |
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| Expenses and aid conditions | Catalog terms: Princeton campus housing (residential portion): $0; Meals (residential portion): $0; Transportation for the in-person portion: $0; 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) | Last year's cycle (2026): Deposit to secure a spot after acceptance: $1,000. Waived or adjusted when alternative arrangements or financial aid are awarded.; Need-based financial aid: 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 | Grade 11 when applying; summer rising grade is one higher | Grades 9–12 (provider uses rising grades) | Grades 9–12 (provider uses rising grades) |
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| Additional eligibility | Residency: US; Requirement: Open to students currently in grade 11 when applying; Requirement: Must be enrolled full-time as a high school junior in the year of application; Requirement: Minimum unweighted GPA equivalent to 3.5 out of 4.0; Requirement: Must meet at least one limited-income condition: combined parent/guardian income (plus child support) of $65,000 or less, eligibility for free or reduced-price lunch, or eligibility for an SAT or ACT fee waiver; Requirement: Must have a permanent U.S. address and intend to attend college in the U.S.; students living and studying abroad and international students on B, F, J or M visas are not eligible | 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) | Requirement: Open to rising grades 9–12; Requirement: No prior engineering experience or STEM classes required |
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| Session dates or duration | Catalog terms: 48–60 weeks; 2027: Unconfirmed — check official site | Catalog terms: 4 weeks; 2027: Unconfirmed — check official site | Last year's cycle (2026): Starts June 8, 2026; Ends August 7, 2026; 3–6 weeks; 2027: Unconfirmed — check official site |
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| Format | Hybrid | 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 | Princeton, NJ | Davis, Irvine, Los Angeles, Merced, San Diego, Santa Cruz, CA | San Jose, CA |
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| Selection and application | Selection: Three-round national selection for academically strong, limited-income juniors; acceptance rate is not published. Application materials: One recommendation from a core class teacher; Finalists: video interview | 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: Application and interview review occur in receipt order while seats remain. BlueStamp does not publish applicant counts, acceptance rates, aid rates, cohort size for the next cycle, or a guaranteed decision. Application materials: Student interview with a parent or guardian present |
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| Official sources | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-10-24Source 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 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-20 |
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