OpenAI: Introducing study mode (via) New ChatGPT feature, which can be triggered by typing /study or by visiting chatgpt.com/studymode. OpenAI say:
Under the hood, study mode is powered by custom system instructions we’ve written in collaboration with teachers, scientists, and pedagogy experts to reflect a core set of behaviors that support deeper learning including: encouraging active participation, managing cognitive load, proactively developing metacognition and self reflection, fostering curiosity, and providing actionable and supportive feedback.