| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | Last year's cycle (2026): $3,900; 2027: Unconfirmed — check official site | Last year's cycle (2026): $6,600; 2027: Unconfirmed — check official site | $5,793 (2027 cycle) |
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| Financial aid | Last year's cycle (2026): Need-based scholarships for online and commuter students: Amount: Unconfirmed — check official site; 2027: Unconfirmed — check official site | Last year's cycle (2026): Need-based financial aid: Up to $6,600. Scaled to reported family income; considered after admission and does not affect the admissions decision.; 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): Non-refundable application fee: $60. A fee waiver can be requested.; Lab kit fee (estimated, plus taxes and shipping): $265. International students may incur customs fees.; Need-based scholarships for online and commuter students: Amount: Unconfirmed — check official site; 2027: Unconfirmed — check official site | Last year's cycle (2026): Application fee: $0. Applying to MathPath is free.; Minimum registration deposit: $500; Need-based financial aid: Up to $6,600. Scaled to reported family income; considered after admission and does not affect the admissions decision.; 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 9–12 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 9–12 when applying; Requirement: As and Bs in high school math and science classes; Requirement: Completed Algebra II; Requirement: Completed a course covering trigonometric functions; Requirement: Completed a full year of high school chemistry and/or physics with a lab (or a 4 or 5 on AP Chemistry or AP Physics 1); Requirement: Recent high school graduates may attend the summer before college | Ages 11–14; Requirement: Turn 11 before the program starts and turn 15 only after the last day of the program | 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: 5–6 weeks; 2027: Unconfirmed — check official site | Last year's cycle (2026): Starts June 28, 2026; Ends July 26, 2026; 4 weeks; 2027: Unconfirmed — check official site | Catalog terms: 4 weeks; 2027: Unconfirmed — check official site |
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| Format | Online | In person | In person |
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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 | Worldwide synchronous participation, subject to Eastern Time attendance and lab-kit shipping/customs feasibility | Unconfirmed — check official site | Davis, Irvine, Los Angeles, Merced, San Diego, Santa Cruz, CA |
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| Selection and application | Selection: Completed applications are academically reviewed. Rising juniors and seniors are typical, talented rising sophomores may be considered, and older students receive priority when space is limited. Programs can fill before final deadlines; no acceptance rate is published. Application materials: One brief required essay and one brief optional essay; Teacher recommendation | Selection: Merit-based selection centered on the Qualifying Test and application context | 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 2026-10-24Source 5 · checked 2026-08-21Source 6 · checked 2026-08-21Source 7 · checked 2026-08-21Source 8 · checked 2026-08-21 | 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 2026-08-20Source 7 · checked 2026-08-20 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-22Source 5 · checked 2026-08-22Source 6 · checked 2026-08-22Source 7 · checked 2026-08-20 |
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