Former employees at AI giants are raising hundreds of millions of dollars from investors months on from launching.

OpenAI has restructured its long-standing partnership with Microsoft, ending cloud exclusivity and enabling it to work with other providers like Amazon and Google. The move coincides with Google's plan to invest up to $40 billion in Anthropic ...

OpenAI is still enormous as the company topped $25 billion in annualized revenue, and is expanding into enterprise accounts while facing competition from Anthropic and Google. The most revealing detail in the WSJ account is the internal anxiety around cash and compute.

By Deepa Seetharaman and Jonathan Stempel April 27 (Reuters) - The bitter legal fight between Elon Musk and the leading artificial intelligence firm, OpenAI, led by Sam Altman, may come down to a few pages in one executive's personal diary.

Microsoft said Monday it will no longer pay a share of its revenue to ChatGPT maker OpenAI, the latest move to untether a close partnership that helped unleash an artificial intelligence boom.

The two companies are overhauling an agreement central to OpenAI’s for-profit model.

Things have changed since Microsoft and OpenAI announced a broad agreement following OpenAI's restructuring in October.

OpenAI has launched GPT-5.5, touting significant advances in reasoning, multimodal understanding, and long-context performance for professional developers, while Google has integrated its Gemini AI directly into Google Chat to manage documents, tasks, and ...