A chatbot made by Chinese artificial intelligence startup DeepSeek has rocketed to the top of Apple’s App Store charts in the US this week, dethroning OpenAI’s ChatGPT as the most downloaded free app.

Shares of Constellation Energy, Vertiv Holdings, GE Vernova, and Vistra plunged in premarket trading Monday after a Chinese artificial-intelligence start-up sent a jolt through the markets. An AI chatbot developed by China’s DeepSeek rose to the top of the Apple App Store on Monday,

You first need to tell AI what kind of expert you need. Using the phrasing “Act as if …” is a good way to start. “Act as if you are an expert on microbiology,” or “Act as if you are a 16th century bard who has to write a poem for a king or your head will get chopped off if it is not humorous and funny.”

In late 2022 large-language-model AI arrived in public, and within months they began misbehaving. Most famously, Microsoft’s “Sydney” chatbot threatened to kill an Australian philosophy professor, unleash a deadly virus and steal nuclear codes.

Character AI has filed a motion to dismiss a case brought against it by the parent of a teen who committed suicide allegedly after becoming hooked on the company's technology.

Breaking down the strengths, weaknesses, and real-world performance of a leading AI chatbot taking on a new challenger from China.

A new China-based AI chatbot challenger called DeepSeek has reached the number one position on Apple's App Store free charts in

Investors dumped technology stocks in premarket trading Monday, sending U.S. indexes sharply lower after Chinese artificial intelligence startup DeepSeek demonstrated a chatbot that it says rivals the top versions from OpenAI and Google for a fraction

According to new research a ChatGPT bot took a graduate level course at a South Carolina University and very high scores. No one noticed.

The inability of Meta's AI chatbot to identify the current president of the United States was elevated to urgent status by the Facebook owner this week, requiring a fast fix, a person familiar with the issue said.

Conversational adaptability is one of its coolest features. Claude AI adjusts its tone and depth based on user queries. Its ability to ask clarifying questions and maintain context over extended exchanges makes it useful for both casual and complex conversations. That is one of the reasons why our editors named it CNET's best chatbot of 2024.