{"689428":{"#nid":"689428","#data":{"type":"news","title":"Researchers Build AI Tutor Grounded in Course Materials","body":[{"value":"\u003Cp\u003EAs students increasingly turn to artificial intelligence (AI) to help with coursework, some worry that their learning could be compromised. Georgia Tech researchers are working to counter this potential decline with an AI tool they hope will promote learning rather than hinder it.\u0026nbsp;\u0026nbsp;\u003C\/p\u003E\u003Cp\u003ETokenSmith is a citation-supported large language model (LLM) tutor that can be hosted locally on a user\u2019s personal computer. The tutor only provides answers based on course materials, such as the textbook or lecture slides.\u0026nbsp;\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EAssociate Professor \u003Ca href=\u0022https:\/\/faculty.cc.gatech.edu\/~jarulraj\/\u0022\u003E\u003Cstrong\u003EJoy Arulraj\u003C\/strong\u003E\u003C\/a\u003E began the project with support from the \u003Ca href=\u0022https:\/\/research.gatech.edu\/c21u-announces-inaugural-bill-kent-ai-higher-education-fellows\u0022\u003E\u003Cstrong\u003EBill Kent Family Foundation AI in Higher Education Faculty Fellowship\u003C\/strong\u003E\u003C\/a\u003E last year. The fellowship, led by Georgia Tech\u2019s Center for 21st Century Universities, supports faculty projects exploring innovative and ethical uses of AI in teaching.\u0026nbsp;\u0026nbsp;\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EArulraj has enlisted assistant professors \u003Ca href=\u0022https:\/\/kexinrong.github.io\/\u0022\u003E\u003Cstrong\u003EKexin Rong\u003C\/strong\u003E\u003C\/a\u003E and \u003Ca href=\u0022https:\/\/steve.mussmann.us\/\u0022\u003E\u003Cstrong\u003ESteve Mussmann\u003C\/strong\u003E\u003C\/a\u003E to help build TokenSmith.\u0026nbsp;\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EMussmann said TokenSmith is a synergistic blend of a database system and a machine learning system. The model stores textbooks, textbook annotations by course staff, common questions and answers, a learning state of the student, and student feedback in a structured database system. However, machine learning plays a key role in the answer generation as well as adapting the system to the student, course staff guidance, and user feedback.\u003C\/p\u003E\u003Cp\u003E\u0022What excites me most is demonstrating how data-driven ML and principled database systems design can reinforce each other \u2014 one providing adaptability and flexibility, the other providing structure and traceability \u2014 in a way that benefits students,\u0022 Mussmann said.\u003C\/p\u003E\u003Cp\u003EKeeping the model local has been an important focus of the project. The team wanted to create an AI tutor that helps students learn from their class resources rather than just giving answers. With each response, TokenSmith cites the origin of the answer in the provided documents.\u0026nbsp;\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u201cOne problem with LLMs is that they can hallucinate and provide wrong answers, but in this controlled environment, we can add these guardrails to make sure it\u2019s actually helpful in an educational setting,\u201d Rong said.\u0026nbsp;\u0026nbsp;\u003C\/p\u003E\u003Cp\u003ERong said she feels that students often undervalue textbooks, and she hopes TokenSmith can motivate students to make better use of them.\u202f\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u201cTextbooks can sometimes be daunting, but maybe if we combine them with the model, students might be more willing to read a paragraph or page in the textbook, and that could help clarify something for them,\u201d she said.\u0026nbsp;\u0026nbsp;\u003C\/p\u003E\u003Cp\u003ERunning the model locally is more cost-effective and helps preserve the user\u2019s privacy. But running the new tool locally comes with technical challenges.\u0026nbsp;\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EOne challenge with creating the model is speed. Since it is a locally based model, TokenSmith depends solely on the user\u2019s computer memory. \u0026nbsp;Tests have also shown that the tutor currently struggles to answer more complex questions.\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u201cWe are interested in pushing the boundaries of these local models so that they give students good answers and also run fast enough to keep students engaged,\u201d Arulraj said.\u0026nbsp;\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003ETokenSmith is a citation-supported large language model (LLM) tutor that can be hosted locally on a user\u2019s personal computer. The tutor only provides answers based on course materials, such as the textbook or lecture slides.\u0026nbsp;\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EAssociate Professor \u003Ca href=\u0022https:\/\/faculty.cc.gatech.edu\/~jarulraj\/\u0022\u003E\u003Cstrong\u003EJoy Arulraj\u003C\/strong\u003E\u003C\/a\u003E began the project with support from the \u003Ca href=\u0022https:\/\/research.gatech.edu\/c21u-announces-inaugural-bill-kent-ai-higher-education-fellows\u0022\u003E\u003Cstrong\u003EBill Kent Family Foundation AI in Higher Education Faculty Fellowship\u003C\/strong\u003E\u003C\/a\u003E last year. The fellowship, led by Georgia Tech\u2019s Center for 21st Century Universities, supports faculty projects exploring innovative and ethical uses of AI in teaching.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"TokenSmith is a citation-supported large language model (LLM) tutor that can be hosted locally on a user\u2019s personal computer. The tutor only provides answers based on course materials, such as the textbook or lecture slides.  "}],"uid":"36532","created_gmt":"2026-04-02 20:25:02","changed_gmt":"2026-04-02 20:30:36","author":"Morgan Usry","boilerplate_text":"","field_publication":"","field_article_url":"","location":"Atlanta, GA","dateline":{"date":"2026-04-02T00:00:00-04:00","iso_date":"2026-04-02T00:00:00-04:00","tz":"America\/New_York"},"extras":[],"hg_media":{"679842":{"id":"679842","type":"image","title":"AI-Tutor-Image.jpg.jpeg","body":null,"created":"1775161510","gmt_created":"2026-04-02 20:25:10","changed":"1775161510","gmt_changed":"2026-04-02 20:25:10","alt":"Graphic showing the researchers in front of a computer screen","file":{"fid":"264048","name":"AI-Tutor-Image.jpg.jpeg","image_path":"\/sites\/default\/files\/2026\/04\/02\/AI-Tutor-Image.jpg.jpeg","image_full_path":"http:\/\/hg.gatech.edu\/\/sites\/default\/files\/2026\/04\/02\/AI-Tutor-Image.jpg.jpeg","mime":"image\/jpeg","size":321180,"path_740":"http:\/\/hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/2026\/04\/02\/AI-Tutor-Image.jpg.jpeg?itok=yDJdQ838"}}},"media_ids":["679842"],"groups":[{"id":"47223","name":"College of Computing"},{"id":"1188","name":"Research Horizons"},{"id":"50875","name":"School of Computer Science"}],"categories":[{"id":"194606","name":"Artificial Intelligence"},{"id":"153","name":"Computer Science\/Information Technology and Security"},{"id":"42911","name":"Education"},{"id":"135","name":"Research"}],"keywords":[{"id":"193860","name":"Artifical Intelligence"},{"id":"192863","name":"go-ai"},{"id":"194701","name":"go-resarchnews"},{"id":"9153","name":"Research Horizons"},{"id":"10199","name":"Daily Digest"},{"id":"194394","name":"AI in Education"}],"core_research_areas":[{"id":"193655","name":"Artificial Intelligence at Georgia Tech"}],"news_room_topics":[],"event_categories":[],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003EMorgan Usry, Communications Officer\u003C\/p\u003E","format":"limited_html"}],"email":["morgan.usry@cc.gatech.edu"],"slides":[],"orientation":[],"userdata":""}}}