ChatGPT has reached 900 million weekly active users and is nearing 1 billion, underscoring how generative AI has officially gone mainstream.

Block cuts 4,000 jobs as Jack Dorsey pivots to an AI-driven model despite rising profits, signaling a broader tech shift toward smaller AI-powered teams.

A new comedic play and a 20-year neurology study explore what we can do to prevent dementia and cognitive decline.