DeepSeek’s “reasoning” R1 model, released last week, provoked excitement among researchers, shock among investors, and responses from AI heavyweights.

Exclusive Similarweb data reveals ChatGPT growth might have peaked, and, though it’s early days, a new competitor could be in line for its throne.

Sam Altman admitted that OpenAI has "been on the wrong side of history" as DeepSeek's open-source AI models win over users ...