OpenAI says it has found evidence that Chinese artificial intelligence start-up DeepSeek used the US company’s proprietary models to train its own open-source competitor, as concerns grow over a potential breach of intellectual property.

Stargate, a high-profile artificial intelligence infrastructure project trumpeted by US President Donald Trump this week, will exclusively serve ChatGPT maker OpenAI, according to people familiar with the matter.

SoftBank is in talks to invest up to $25 billion into ChatGPT owner OpenAI and become the AI firm's largest financial backer, the Financial Times reported on Wednesday, as the Japanese conglomerate continues to expand into the sector.

The biggest investment so far in the ChatGPT maker would help cover its commitment to the Stargate AI infrastructure venture.

SoftBank is in talks to invest as much as $25bn into OpenAI, in a deal which would make it the ChatGPT maker’s biggest financial backer, as the pair partner on a massive new artificial intelligence infrastructure project.

SoftBank is in talks to invest up to $25 billion in OpenAI as part of a broader partnership that could see the Japanese conglomerate spend more than $40 OpenAI is in talks to raise up to $25 billion from SoftBank amid DeepSeek shock.

OpenAI's Stargate project lacks a fully developed plan and hasn't secured funding yet, according to a report from the Financial Times.

Digital news units of Indian billionaires Gautam Adani and Mukesh Ambani, and other outlets including the Indian Express and the Hindustan Times, are joining proceedings against OpenAI for improperly using copyright content,

Also in today’s newsletter, Vanke’s crisis reignite fears for China’s property sector, and Tesla sues EU over tariffs on EVs from China

OpenAI’s board is locked in complex negotiations ... Clauses relating to AGI are being written out of the new structure, the Financial Times has previously reported. The company’s complex ...