Updated
Casper is Acuity Insights' open-response situational judgment test: 11 scenarios, video and typed, in about 65 to 85 minutes, scored by human raters. Duet was a 15-minute value-alignment assessment, and Acuity says it will no longer be administered for the 2026-27 cycle and beyond. Snapshot, a 10-minute one-way video interview, is no longer listed on Acuity's sites.
The table compares the three from Acuity's own pages. Where Acuity no longer describes something, it says so.
| Detail | Casper | Duet | Snapshot |
|---|---|---|---|
| What it is | Casper: An open-response situational judgment test | Duet: A value-alignment assessment, to show programs and applicants if they are a match | Snapshot: A one-way video interview |
| Format | Casper: 4 video response scenarios, then 7 typed, 2 questions each | Duet: Not described on Acuity's current pages | Snapshot: Recorded video answers, with no live interviewer |
| Length | Casper: About 65 to 85 minutes, with two optional breaks | Duet: 15 minutes | Snapshot: 10 minutes |
| Scoring | Casper: Human raters, not AI. You receive a quartile. | Duet: Not described on Acuity's current pages | Snapshot: Not described on Acuity's current pages |
| Who sees it | Casper: The programs you choose, about 2 to 3 weeks after the test | Duet: Programs | Snapshot: Programs |
| 2026-27 | Casper: Offered | Duet: No longer administered, per Acuity's applicant platform | Snapshot: No longer listed. Its old page redirects to Acuity's home page. |
| Cost | Casper: A base testing fee plus a fee for each program, on Acuity's Dates and Fees page | Duet: Not listed | Snapshot: Not listed |
Casper is an open-response situational judgment test. Per Acuity, the 2026-27 test has 4 video response scenarios with 1 minute per question, then 7 typed response scenarios with 3.5 minutes for both questions. Human raters score it, not AI.
Programs you choose get your score about 2 to 3 weeks after the test, and you get a quartile about 4 to 5 weeks after it. Each program decides how to use it. The fees are a base testing fee plus a fee for each program, listed on Acuity's Dates and Fees page. More in the Casper test explained and how Casper is scored.
Acuity describes Duet as a value-alignment assessment that helps programs and applicants understand if they are a match, and its applicant platform lists it at 15 minutes, with responses made available to programs.
Acuity's applicant platform now says that following the current admissions cycle, Duet will no longer be administered for the 2026-27 cycle and beyond. If a program page still lists Duet, ask the program what it needs now.
Acuity's applicant platform describes Snapshot as a 10-minute one-way video interview, with responses made available to programs. Acuity no longer lists it: the old Snapshot page redirects to the home page, and the Help Centre has no Snapshot article.
Acuity's current recorded interview is Video Interviews, which programs set up with their own prompts. See our Acuity video interview guide.
Start with Acuity's free official practice test, in your Acuity Insights account once you book Casper. For a score on each answer, Casper Prep by Confetto is one option, with a free week of scored practice on the real timers. Written by Confetto, one of the options. See free Casper practice tests and how to prepare for Casper.
Sources, each checked October 26, 2026: Acuity Insights, About Casper, Acuity Help Centre, Casper test format and length, Acuity Help Centre, your quartile score, Acuity Help Centre, when results are sent, Acuity Help Centre, what Casper costs, Acuity Help Centre, Video Interviews, Acuity Insights applicant platform, acuityinsights.app (Duet and Snapshot pages redirect here), Acuity Insights, Casper for programs.
Each page has a step-by-step approach, a scored sample answer and practice scenarios from our library of 1181.
Casper, Duet and Snapshot, answered.
Casper is a registered mark of Acuity Insights. Confetto is not affiliated with, endorsed by, or sponsored by Acuity Insights or Casper. Practice scenarios are original and written by Confetto.
