SANTA CLARA, California: Nvidia is close to finalizing a US$30 billion investment in OpenAI as part of the artificial intelligence company's massive new fundraising round, a person familiar with the matter said.

The deal would see the chipmaker take a stake in one of its largest customers and form part of a capital raise in which OpenAI is seeking more than US$100 billion. The round would value the ChatGPT maker at about $830 billion, making it one of the largest private fundraising efforts on record, the person said.

SoftBank Group and Amazon are also expected to participate, Reuters has previously reported.

The investment underscores the increasingly intertwined relationships among major technology firms competing to develop advanced AI systems, as chipmakers, cloud providers, and model developers deepen financial and strategic partnerships.

According to the Financial Times, the proposed investment would replace a commitment announced in September under which Nvidia had pledged up to $100 billion to support OpenAI's use of its chips in data centers.

Nvidia declined to comment.

The company had initially planned to invest $10 billion once a definitive agreement was reached for OpenAI to purchase Nvidia systems, Reuters reported in September. However, the agreement took much longer than anticipated, the person said.

Much of the fresh capital OpenAI raises is expected to be used to buy Nvidia's chips, which power the training and deployment of its AI models, the person added, speaking on condition of anonymity because they were not authorized to discuss the matter publicly.