| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | Last year's cycle (2026): $7,113; 2027: Unconfirmed — check official site | Unconfirmed — check official site | $5,793 (2027 cycle) |
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| Financial aid | Last year's cycle (2026): Need-based tuition scholarship: Amount: Unconfirmed — check official site. Limited and competitive; admitted students apply separately with essay responses.; 2027: Unconfirmed — check official site | Last year's cycle (2026): Full scholarship for campers unable to pay: Amount: Unconfirmed — check official site; 2027: 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) |
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| Expenses and aid conditions | Last year's cycle (2026): Pre-college fee: $780; Optional housing per session: $2,542; Application fee: $50. Non-refundable; waived for applications submitted before the early-bird deadline.; Health insurance fee per session (international students only): $225; Need-based tuition scholarship: Amount: Unconfirmed — check official site. Limited and competitive; admitted students apply separately with essay responses.; 2027: Unconfirmed — check official site | Last year's cycle (2026): Full scholarship for campers unable to pay: Amount: Unconfirmed — check official site; Sliding-scale camper contribution (partial scholarship): $200–$500. An other amount can also be chosen.; Registration fee kept on a withdrawal at least 10 days before the start: $10; 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) |
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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 10–12 when applying; check the provider's rules for graduating seniors | Unconfirmed — check official site | Grades 9–12 (provider uses rising grades) |
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| Additional eligibility | Requirement: Open to students currently in grades 10–12 when applying; Requirement: Good academic standing with at least a 3.0 GPA; Requirement: Minimum TOEFL 90, IELTS 7.0 or Duolingo 115 when English is not the main language of instruction at the student's high school; Requirement: International students in on-campus classes need an F-1 visa and at least 6 credits | Ages 14–18; Requirement: Able to attend both weeks of the two-week camp | 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) |
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| Session dates or duration | Catalog terms: 5–8 weeks; 2027: Unconfirmed — check official site | Last year's cycle (2026): Starts July 13, 2026; Ends July 24, 2026; 2 weeks; 2027: Unconfirmed — check official site | Catalog terms: 4 weeks; 2027: Unconfirmed — check official site |
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| Format | In person / Online | In person | In person |
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| Housing and supervision | 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 | Washington, DC | Providence, RI | Davis, Irvine, Los Angeles, Merced, San Diego, Santa Cruz, CA |
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| Selection and application | Application materials: 300- to 500-word personal statement; One letter of recommendation | Selection: The course has limited shop capacity and the 2026 listing sold out. The application asks about motivation and making experience, but no acceptance rate or formal scoring rubric is published. Application materials: Personal statement: short answers (2-4 sentences each) to the written prompts; Statement of financial need (scholarship applicants) | 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) |
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| Official sources | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-10-09Source 5 · checked 2026-10-09 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-21 | 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 |
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