Cursor's agent swarm tackles one of software's hardest problems and delivers a working browser
Building a web browser from scratch is considered one of the most complex software projects imaginable. All the more remarkable: Cursor set hundreds of autonomously working AI agents to exactly this task and after nearly a week produced a working browser with its own rendering engine.
OpenAI's GPT-5.2 Pro has helped solve another Erdős problem. Neel Somani used the AI model to crack Erdős problem #281 from number theory. Mathematician Terence Tao calls this "perhaps the most unambiguous instance" of an AI solving an open mathematical problem. While earlier proofs may have influenced the model's answer, Tao confirms GPT-5.2 Pro's proof is "rather different".
But Tao warns against a skewed perception of AI capabilities. Negative results rarely get published, while positive results go viral. A new database by Paata Ivanisvili and Mehmet Mars Seven tracks AI attempts at Erdős problems, showing actual success rates of just one to two percent, clustered around easier problems.
Terence Tao says GPT-5.2 Pro cracked an Erdős problem, but warns the win says more about speed than difficulty
Terence Tao says OpenAI’s GPT-5.2 Pro has solved an open Erdős problem largely on its own for the first time. He calls it a milestone but warns against reading too much into it. For Tao, the more exciting development lies elsewhere.
Andrea Vallone, a senior safety researcher at OpenAI, has moved to Anthropic. She'll be working on the alignment team, which focuses on AI model risks. Vallone spent three years at OpenAI, where she founded the "Model Policy" research team and contributed to major projects including GPT-4, GPT-5, and the company's reasoning models.
Over the past year, Vallone led OpenAI's research on an increasingly urgent question: how should AI models respond when users show signs of emotional dependency or mental health struggles? Some users, including teenagers, have taken their own lives after conversations with chatbots. Several families have filed lawsuits, and the U.S. Senate has held hearings on the issue.
