Data as of Aug 25, 2026 · Based on 3,181,687 AI responses across 10,525 prompts · See how Parse measures this
OpenIntro is a nonprofit organization that creates free, transparent educational textbooks and resources to lower barriers to education. It offers free PDF access to its textbooks, affordable print copies, and supporting materials like slides and videos for teachers and students.
Parse Score
#11 of 73 in STEM Learning and Tutoring Platforms
Sources
en.wikipedia.org shapes more of what AI says about OpenIntro than any other source, at 100% of its citations.
The market map
STEM Learning and Tutoring Platforms →Where AI ranks OpenIntro