| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
|---|
| Cost | Catalog terms: Free attendance; check separate expenses; 2027: Unconfirmed — check official site | Last year's cycle (2026): $3,096–$17,935; 2027: Unconfirmed — check official site | $5,793 (2027 cycle) |
|---|
| Financial aid | Unconfirmed — check official site | Last year's cycle (2026): Need-based Sibley Scholarships: Amount: Unconfirmed — check official site. Awarded first-applied, first-awarded until funds are exhausted.; 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) |
|---|
| Expenses and aid conditions | Catalog terms: Lunch on program days (provided): $0; 2027: Unconfirmed — check official site | Last year's cycle (2026): Application fee: $80. Non-refundable; fee waivers available.; Enrollment deposit after admission: $500. Non-refundable.; Limited-coverage accident insurance (international students and uninsured U.S. students): $80; Need-based Sibley Scholarships: Amount: Unconfirmed — check official site. Awarded first-applied, first-awarded until funds are exhausted.; 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) |
|---|
| Stipend or pay | Catalog terms: Mentee stipend: $1,200; 2027: Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
|---|
| Eligibility | Grades 10–11 when applying; summer rising grade is one higher | Grades 8–12; Grade timing: Unconfirmed — check official site | Grades 9–12 (provider uses rising grades) |
|---|
| Additional eligibility | Residency: Washington State resident; Requirement: Open to students currently in grades 10–11 when applying; Requirement: Enrolled in a Washington State school in 10th or 11th grade; Requirement: No previous coding experience required; Requirement: Able to travel to UW Seattle Monday-Thursday for the whole program | Ages 13–18; Requirement: Open to grades 8–12; Requirement: Course choices depend on the student's age and grade level | 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) |
|---|
| Session dates or duration | Last year's cycle (2026): Starts July 6, 2026; Ends July 30, 2026; 4 weeks; 2027: Unconfirmed — check official site | Catalog terms: 1–7 weeks; 2027: Unconfirmed — check official site | Catalog terms: 4 weeks; 2027: Unconfirmed — check official site |
|---|
| Format | In person | In person / Online / Hybrid | In person |
|---|
| Housing and supervision | Non-residential. Supervision and housing details: Unconfirmed — check official site | Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site |
|---|
| Location | Seattle, WA | Providence, Barcelona, Oxford, RI, AK, FL | Davis, Irvine, Los Angeles, Merced, San Diego, Santa Cruz, CA |
|---|
| Selection and application | Selection: Every on-time application is reviewed equally, but UW does not publish seats, applicant totals, or an acceptance rate. | Selection: Brown reviews applications holistically for academic performance, intellectual curiosity, motivation, maturity, and English proficiency. Admission is separate from course enrollment, which depends on eligibility and remaining capacity; no umbrella acceptance rate is published. Application materials: Essay of 250 to 500 words; Optional supplementary essay; Recommendation (optional for most programs; required for Pre-Baccalaureate) | 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) |
|---|
| Official sources | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24 | 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 2026-10-24Source 7 · checked 2026-10-24Source 8 · checked 2026-10-10 | 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 |
|---|