WSJ Tech News Briefing

Plus, a U.S. District Judge limits the sharing of sensitive Treasury data amid a dispute over access granted to Elon Musk’s allies. And Amazon shares fall in postmarket trading after the company released its Q4 earnings. Pierre Bienaimé hosts.

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By drawing on the results of other models, distillation can shape AI that’s almost as good, quickly and more cheaply. WSJ tech reporter Miles Kruppa says that has investors worried about the risks of pouring money into the field’s cutting edge. And retail reporter Kate King says that while Amazon may be the champion of online retail, its recent store closures show it hasn’t replicated that success in the bricks-and-mortar space. Pierre Bienaimé hosts.



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Plus, banks wrapped up the sale of $5.5 billion in debt backed by X, showing that investors are eager to bet on Elon Musk given his proximity to President Trump. And Uber’s earnings disappoint even as it highlights plans for the arrival of robotaxis. Pierre Bienaimé hosts.

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The Japanese conglomerate’s CEO is in talks to spend up to $43 billion to boost Altman’s OpenAI, in what would be the biggest ever investment in a startup. The two companies also announced a joint venture this week. Startups and venture capital reporter Berber Jin joins host Pierre Bienaimé to talk about Son’s track record and what that fresh capital means for OpenAI. Plus, markets reporter Matt Wirz takes a look at the mountain of competing investments from every corner of Wall Street.



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Plus, Spotify hits its first ever full year of profitability, fueled by record user growth and austerity measures. And digital identity verification provider Okta will cut its workforce by about 3%. Pierre Bienaimé hosts.

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