Ampersand Tutor (&Tutor) is a model trained to teach by interacting with Persimmon, a large-scale model of human learners. It achieved the best score on the TutorMoments eval among compared models and is available through the humans& agent API. Training rewards the tutor based on how much the simulated student learns, producing pedagogical behaviors without direct supervision.
Ampersand Tutor (&Tutor) is a text-in/text-out tutoring model intended for educational applications that help learners reason through problems, identify misconceptions, and build understanding. It was trained in simulated tutoring conversations with Persimmon playing the learner, with training rewards tied to student learning. The model is available through the humans& agent API. Its published evaluations use simulated learners and automated judges; the product’s model card cautions that these results may not generalize to human learners or establish lasting learning gains.
GLM 5.3 is identified in the official model card as &Tutor’s base model.
