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Comparisons

A tool in your browser, or a tutor in your course.

Brisk helps the teacher inside Docs, PDFs and web pages. Zelvi works with the student, from the course’s published material, and hands the teacher a record of who recovered.

Choose Zelvi if

  • You want students tutored by voice and text from your course material, with citations.
  • You want a record of which misconceptions were resolved and who still needs a person.
  • You teach college or workforce courses and launch tools from an LMS.

Choose Brisk if

  • You want feedback and levelling tools inside Google Docs and any web page, with no new place to go.
  • You want writing-process analysis of how a student drafted their work.
  • You want a light install a teacher can adopt on their own today.

Feature by feature

Zelvi compared with Brisk, feature by feature
FeatureZelviBrisk
Where it worksA Studio students open from the course or LMSA browser extension inside the teacher’s existing tools
Feedback on student writingStrengths, next steps and one question, citing course pagesSeveral feedback styles, plus analysis of how the writing was drafted
Changing reading level and languageGrade 4 to intro college, English-learner levels, 24 languages, from the courseReading levels and many languages on any page
Student tutoringVoice and text tutor that re-teaches and has the student retryStudent activities built from a resource
Recovery record for the institutionPer concept and per student, with hand-offsNot the product it is trying to be
Getting startedSet up with the institution: courses, material, sign-inA teacher installs it and starts the same day

What Brisk does better

Brisk is easier to adopt than Zelvi: it lives where teachers already work and needs nothing from IT. Its writing-process analysis has no equivalent here.

What our side of this rests on

  • Answers cited back to your own material, with the instructor one tap away when the material does not cover itOn our go/no-go benchmark every answer retrieved the right passage, carried a valid citation and stayed inside the material, and every out-of-scope question routed the learner to the instructor rather than a guess — against 54.2% for handing the model the whole document.
  • Change reading level, translate, and draft feedback on student work, all from the course’s own materialFeedback cites the course pages it relies on, translation keeps the English term beside each subject term, and every pasted text is fenced from the instructions.
  • Ava replies in 22 languages and keeps the course’s English terms beside the translationA question in another language is searched against the course with an English rendering, so the answer can still cite the page.
  • Talk to the tutor out loud, interrupt it, and be understoodThe realtime voice loop ships today and is exercised before every release.
  • See which learners are struggling and which concepts they are stuck onTwenty-nine automated checks on the cohort report, plus five more driven through a real browser.

Questions people actually ask

Does Zelvi have a browser extension?
No. Students use the Zelvi Studio, opened from the course or the LMS.
Can a teacher use both?
Yes. Brisk helps with the teacher’s own documents; Zelvi tutors the student from the course and reports who recovered.

Other comparisons