OpenAI’s Sora Makes Disinformation Extremely Easy and Extremely Real

The new A.I. app generated videos of store robberies and home intrusions — even bomb explosions on city streets — that never happened.

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OpenAI Completes Deal That Values It at $500 Billion

With the agreement, OpenAI becomes the world’s most valuable privately held company, surpassing the rocket maker SpaceX.

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Top A.I. Researchers Leave OpenAI, Google and Meta for New Start-Up

Founded by a co-creator of ChatGPT, Periodic Labs aims to build artificial intelligence that can accelerate discoveries in physics, chemistry and other fields.

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What We Know About ChatGPT’s New Parental Controls

OpenAI said parents can set time and content limits on accounts and receive notifications if ChatGPT detects signs of potential self-harm.

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The Great A.I. Build-Out + H-1B Visa Chaos + TikTok Braces for the Rapture

“You now have the leaders of the biggest technology companies in the world saying, effectively in unison, that they do not care how much it costs to build all the way to A.G.I.”

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OpenAI to Join Tech Giants in Building 5 New Data Centers in U.S.

Working with the Japanese conglomerate SoftBank and the cloud company Oracle, the A.I. start-up will spend $400 billion over the next five years.

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Nvidia to Invest $100 Billion in OpenAI

The chipmaker’s investment in the San Francisco start-up is an indication of the wild financial figures being tossed around in the world of artificial intelligence.

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Elon Musk Has Focused on xAI Since Leaving Washington

Mr. Musk spent the summer at his artificial intelligence start-up xAI, trying to match the runaway success of OpenAI. The result was chaos.

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What Exactly Are A.I. Companies Trying to Build? Here’s a Guide.

Amazon, Microsoft, Google, Meta and OpenAI plan to spend at least $325 billion by the end of the year in pursuit of A.I. We explain why they’re doing it.

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Robinhood Unveils a Publicly Traded Venture Capital Fund

The brokerage plans to announce a new publicly traded venture capital fund that would let ordinary investors get a piece of privately held start-ups.

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