TECH

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Nvidia's dominance in the artificial intelligence (AI) sector has propelled it to become the first company in the world with a market value of $4 trillion. Shares in the chipmaker surged as much as 2.4% to $164 on Wednesday, extending a meteoric rise that began when the company first reached a $1 trillion valuation in June 2023. The company's valuation climb reflects the insatiable global demand for its AI-powering chips.

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OpenAI CEO Sam Altman is urging caution as ChatGPT gains ever more traction. In the inaugural episode of OpenAI’s official podcast, Altman expressed surprise at how much people trust the AI. “People have a very high degree of trust in ChatGPT, which is interesting, because AI hallucinates. It should be the tech that you don’t trust that much,” he said, stressing that the model still produces misleading or outright false information—despite its sophisticated veneer.

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Linda Yaccarino has resigned as CEO of X, the social media platform formerly known as Twitter, after two years leading the Elon Musk-owned company. In a statement on X, she cited "two incredible years" overseeing a major transformation. Her resignation on Wednesday follows growing controversy surrounding X's AI chatbot, Grok, which has been criticized for posting anti-Semitic comments praising Adolf Hitler and Islamophobic insults.

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A federal judge has found that Anthropic's use of copyrighted books to train its AI chatbot, Claude, falls under the "fair use" doctrine of copyright law, siding with the AI company in a decision that could have significant implications for the industry. District Court Judge William Asup ruled on Monday that the practice of training an AI with millions of pirated books without author permission was permissible.

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Jack Dorsey, the co-founder of Twitter, X now, and CEO of Block, has launched Bitchat,  which marks a radical shift in digital messaging. The app bypasses traditional internet infrastructure entirely, operating over Bluetooth mesh networks to enable encrypted, ephemeral conversations, no phone numbers, accounts, or central servers required.

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Tesla's Model Y robotaxi began operations this weekend, sending the electric vehicle maker's stock soaring 8% on Monday. The autonomous ride service launched in Austin, Texas, on Sunday, initially serving a limited number of invited riders. These early adopters included Tesla enthusiasts, promoters, and shareholders, many of whom actively create Tesla- and Musk-related content on social media platforms such as X and YouTube.