The Silicon Valley chip maker filed a prospectus just as SpaceX, Anthropic and OpenAI prepare for their own listings, in what is shaping up to be a wave of enormous initial public offerings.

A chart created by METR, a nonprofit A.I. organization, has become an industrywide obsession as it measures the rapid development of big A.I. systems.

A.I. has always been compared to human intelligence, but that may not be the right way to think about it. What it does well can help predict what jobs it may replace.

For us to trust it on certain subjects, researchers in the growing field of interpretability might need to learn how to open the black box of its brain.

The maker of ChatGPT announced the limited release of GPT-5.4-Cyber, a technology designed to find security holes in software.

The authorities said a 20-year-old Texas man charged with throwing a homemade bomb at the gate of Sam Altman’s home had written at length about the threat of A.I.

The device burned an exterior gate of the house in San Francisco, the police said, and it was unclear whether the artificial intelligence executive was home. The authorities arrested a suspect.

Whether you’re looking to manage a health condition, lose weight or simply eat better, we want to hear from you.