| 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): $5,750; 2027: Unconfirmed — check official site | $2,820–$4,795 (2027 cycle) |
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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): Need-based aid toward the program cost: Amount: Unconfirmed — check official site. Can cover all or part of the program cost; does not cover housing.; Winston Data Scholarship (merit-based): $5,750. Covers program tuition in full; requires a data-science essay, a weekly online class and a project.; 2027: Unconfirmed — check official site | Need-based TryEngineering Summer Institute Scholarship: Amount: Unconfirmed — check official site. For U.S. citizens residing in the U.S.; approximate family income limit of $100,000, adjusted for family size and location. (2027 cycle) |
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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): Optional six-week NYU housing with meal plan: $3,966; Application fee: $50. Fee waiver available on request.; Need-based aid toward the program cost: Amount: Unconfirmed — check official site. Can cover all or part of the program cost; does not cover housing.; Winston Data Scholarship (merit-based): $5,750. Covers program tuition in full; requires a data-science essay, a weekly online class and a project.; 2027: Unconfirmed — check official site | Need-based TryEngineering Summer Institute Scholarship: Amount: Unconfirmed — check official site. For U.S. citizens residing in the U.S.; approximate family income limit of $100,000, adjusted for family size and location. (2027 cycle) |
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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) | Grade 11 when applying; summer rising grade is one higher | 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) | Citizenship: U.S. citizens (living anywhere); Citizenship: Non-citizens in the U.S. on an F-1 student visa; Requirement: Open to students currently in grade 11 when applying; Requirement: High aptitude in STEM; Requirement: Available for every day of the full six-week program, with no other program at the same time | Ages 14–18; Requirement: Open to grades 9–12; Requirement: Completed at least one year of high school |
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| Session dates or duration | Catalog terms: 4 weeks; 2027: Unconfirmed — check official site | Starts June 28, 2027; Ends August 6, 2027; 6 weeks (2027 cycle) | Starts June 13, 2027; Ends July 30, 2027 (2027 cycle) |
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| Format | In person | In person | In person |
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| Housing and supervision | Residential. Supervision and housing details: Unconfirmed — check official site | Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Davis, Irvine, Los Angeles, Merced, San Diego, Santa Cruz, CA | New York, NY | Baltimore, Houston, Los Angeles, Durham, Berkeley, New York, Ann Arbor, Washington, MD, TX, CA, NC, NY, MI, DC |
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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: GSTEM describes admission as competitive and admits 40 students each summer. Decisions consider high-school academics, essays, STEM activities, and one recommendation; applicant count and acceptance rate are not published. Application materials: Four essays; One letter of recommendation from a teacher, advisor, or counselor | Selection: Students may apply directly or be invited through nominations or talent identification. Enrollment is capacity-based and may use waitlists; no acceptance rate is published. |
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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 2026-10-24Source 4 · checked 2026-10-24Source 5 · checked 2026-10-24Source 6 · checked 2026-08-21 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-22 |
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