United StatesEducation2023 – ongoingHarvard University
CS50 Duck coding tutor
Harvard deployed the CS50 Duck to help students debug code outside office hours
Problem
Programming students could become stuck when instructors were unavailable. Waiting for office hours could interrupt their coursework.
Approach
CS50 instructors tested an LLM-based coding assistant with a small student group in summer 2023 and introduced it into fall sections. The Duck guided students through coding problems without directly supplying solutions. Students used it while completing final projects.
Results
No published figures
Takeaway
The assistant extended access to course-specific help while instructors retained in-person support. Harvard reported student experiences without a quantified learning-gain estimate for this deployment.
Categories
- Size
- Large enterprise
- Industry
- Education
- Business function
- Production and quality
- Innovation type
- Product and service innovation
- AI technology
- Generative AIConversational and voice AI
- Adoption
- Built in-house
- Evidence
- Company's own claim
Sources
Source summaries
Harvard described the tutor's summer trial and fall classroom deployment. Students reported using its guidance to debug code, and the instructor reported fewer office-hour visits and online questions.
Full details are in the original sources.