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Welcome to Tech News Briefing. It's Wednesday, February 5th. I'm Pierre Bienname for the Wall Street Journal.

There's a new power couple in the world of artificial intelligence.

The relationship between SoftBank CEO Masayoshi Sun and Sam Altman, the head of Open AI,

is built on what could be the biggest ever investment in a startup.

And then, we take a look at the rush of AI investments coming from every corner of Wall

Street too, and how some investors are making big bets in the new digital economy.

First up, SoftBank CEO Masayoshi Sun has a history of latching onto charismatic startup founders,

and he's found one in Open AI head Sam Altman.

This week, the two companies announced a joint venture to provide Japanese businesses

and maybe at some point the wider world with AI services.

And Sun is also preparing to put as much as $43 billion toward OpenAI in a pair of

transactions. Berber Jin covers startups and venture capital for the Wall Street Journal, and he joins

me now, and we should quickly note before we get into it that News Corp, owner of the Wall Street

Journal, has a content licensing partnership with OpenAI. Burber, what's this relationship like between Masayoshi Sun, the head of a Japanese conglomerate,

and OpenAI's Sam Altman?

As you mentioned, SoftBank is agreeing to invest up to $43 billion in OpenAI.

There hasn't been an investment of this size ever before in Silicon Valley, and it eclipses

...