| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | May 15, 2027 (2027 cycle) |
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| Cost | Catalog terms: Free attendance; check separate expenses; 2027: Unconfirmed — check official site | $5,793 (2027 cycle) | Catalog terms: $1,490–$3,730; 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) | Catalog terms: Limited need-based scholarships: Amount: Unconfirmed — check official site. Need is shown with U.S. tax filings or other financial documents; no travel funds or visa support.; 2027: Unconfirmed — check official site |
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| Expenses and aid conditions | 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) | Catalog terms: One-time non-refundable application fee for all selected sessions: $75; Limited need-based scholarships: Amount: Unconfirmed — check official site. Need is shown with U.S. tax filings or other financial documents; no travel funds or visa support.; 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 11–12 (provider uses rising grades) | Grades 9–12 (provider uses rising grades) | Grades 11–12 (provider uses rising grades) |
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| Additional eligibility | Minimum age 16; Residency: Attend a Northern California high school (public, charter, private or homeschool); Requirement: Open to rising grades 11–12; Requirement: At least 16 years old by the start of the workshop; Requirement: Students who are 18 at the start must be U.S. citizens; Requirement: Cumulative GPA of 3.3 or higher; Requirement: Science GPA of at least 3.5; Requirement: Biology and Chemistry, or Integrated Science Series I and II, completed by the end of the current school year; Requirement: Eligible to access LLNL under Section 3112 of the 2025 National Defense Authorization Act, which generally bars citizens of China, Russia, Iran and North Korea without dual U.S. citizenship or permanent residence | 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 11–12; Requirement: Applicants who have not completed at least two years of U.S. high school must demonstrate English language proficiency; Requirement: Residential students must be 16 by September 1 of the program year; younger students can commute or take online courses; Requirement: Basic familiarity with the stock market recommended for Stock Market and Investment Research |
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| Session dates or duration | 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 | Starts June 7, 2027; Ends July 9, 2027; 1 week (2027 cycle) |
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| Format | In person | In person | In person / Online |
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| Housing and supervision | Non-residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Livermore, CA | Davis, Irvine, Los Angeles, Merced, San Diego, Santa Cruz, CA | Waltham, MA |
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| Selection and application | Selection: Applications are competitive and space is limited; LLNL publishes no acceptance rate or guaranteed cohort size on the official page. Application materials: Letter of recommendation from a Biology or Chemistry teacher | 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: Bentley calls the program competitive and releases decisions on a rolling basis, but does not publish an acceptance rate, cohort size, scoring rubric, minimum GPA, or required finance background on the official pages. Application materials: Optional essay question |
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| Official sources | Source 1 · checked 2026-10-24 | 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 2026-08-21 |
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