I test-drove both. Here’s what I learned. In early March, OpenAI unleashed a one-two punch, dropping two major frontier models just days apart.

UC San Diego cognitive scientist Philip Guo created Python Tutor, a free tool that makes code “visible” step by step. The research behind it earned a Test of Time award, recog ...

Plus, Blank Street is launching bigger stores, Chiptole’s chatbot is shockingly intelligent, and more.

More and more people are turning to AI chatbots as if they were close friends—venting about personal struggles, asking for ...