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More than two dozen House Democrats on Tuesday accused Elon Musk‘s X of “profiting off violent content by a terrorist organization” and demanded that he and CEO Linda Yaccarino address Hamas-related content on the social media platform.

“The platform has become a hotbed of misinformation and terrorist propaganda,” wrote the group of 27 Democrats, led by Reps. Dan Goldman of New York and Jamie Raskin of Maryland, in a letter obtained by CNBC.

The already “inexcusable” issue of antisemitic content on X, they wrote, had become “outright indefensible” since the deadly Oct. 7 terror attack in Israel by Hamas militants. The U.S. has labeled Hamas a terror group since 1997.

“Given the many flagrant examples of X profiting off this content, we need detailed answers from X in considering potential legislation that would prevent such activity in the future,” wrote the lawmakers.

They gave Musk and Yaccarino until Dec. 1 to provide “all forms of written communications” related to content moderation for any posts or accounts connected to Hamas.

In addition to the records, the House Democrats asked Yaccarino and Musk to detail how X plans to address Hamas-related content currently on the platform. They also want to know what changes the company “plans to implement to ensure that the harmful spread of terrorist propaganda does not happen again.”

X did not immediately respond to CNBC’s request for comment.

The letter comes as Musk, the world’s richest man, and X, the platform he bought for $44 billion last year, fend off new accusations of antisemitism that are threatening to cut deeply into the company’s ad-based revenue model.

Apple, Disney, and Comcast, the parent company of CNBC, are some of the major brands that paused their online advertising on X last week, after Musk publicly agreed with an antisemitic conspiracy theory that “Jewish communities” were pushing “dialectical hatred against whites.”

“You have said the actual truth,” Musk wrote last Wednesday in response to that post.

The exchange drew fierce condemnation from X users, Wall Street investors and Washington politicos. The White House accused Musk of promoting “antisemitic and racist hate.”

The fallout coincided with a new report from the progressive nonprofit watchdog group Media Matters for America, which accused X of placing ads from major brands next to posts that promoted Adolf Hitler and the Third Reich.

Musk has vehemently denied allegations that he is bigoted, writing in a post on Sunday that media reports labeling him antisemitic over his rhetoric are “bogus,” and “nothing could be further from the truth.”

“I wish only the best for humanity and a prosperous and exciting future for all,” he wrote.

He has also repeatedly slammed Media Matters as “pure evil” and vowed to file a “thermonuclear lawsuit” on Monday against the outlet “and ALL those who colluded in this fraudulent attack on our company.”

Yaccarino, a former NBCUniversal advertising chief whom Musk tapped in May as his CEO, said Thursday that X has “been extremely clear about our efforts to combat antisemitism and discrimination.”

Media Matters president Angelo Carusone in a statement Saturday slammed Musk’s legal threat as a “meritless” effort to “silence reporting that he even confirmed is accurate.”

The letter from Goldman and Raskin on Tuesday largely avoided personally singling out Musk over his controversial posts.

Instead, the Democrats highlighted numerous X accounts that have reportedly been “spreading Hamas terrorist propaganda videos glorifying barbaric acts of violence against Israelis.”

They cited reports last month from the Tech Transparency Project, or TTP, the research arm of the nonprofit watchdog Campaign for Accountability, and the nonprofit think tank Institute for Strategic Dialogue, or ISD.

The TTP investigation found accounts that paid for X’s Premium service sharing graphic, uncensored videos including “bloodied bodies on the ground, and rocket and drone attacks on Israeli tanks and vehicles.”

Those videos had also been featured on the website of Hamas’ military wing and were posted on X in apparent violation of the company’s content policies, according to TTP.

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An ISD report, meanwhile, identified 128 posts from 45 unique accounts “containing glorification and support for terrorist content on X” in just 24 hours between Oct. 11 and Oct. 12.

Both reports noted that one of the Premium accounts spreading Hamas propaganda and antisemitic messages had been promoted by Musk himself in a since-deleted post.

The reports also showed that X is “profiting from the spread of this gruesome and harmful propaganda through account subscription fees and ad revenue,” the lawmakers wrote.

By buying X Premium, the accounts identified in the TPP and ISD reports are “paying for verification without any formalized vetting process and being promoted by the website’s algorithm,” the Democrats wrote.

The letter also cited a mid-October report from the misinformation tracker NewsGuard, which analyzed 250 high-engagement posts that promoted false or unproven claims related to the Israel-Hamas War. it found that 186 of the 250 came from accounts that had paid for Premium verification.

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Amazon Web Services is building equipment to cool Nvidia GPUs as AI boom accelerates

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Amazon Web Services is building equipment to cool Nvidia GPUs as AI boom accelerates

The letters AI, which stands for “artificial intelligence,” stand at the Amazon Web Services booth at the Hannover Messe industrial trade fair in Hannover, Germany, on March 31, 2025.

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Amazon said Wednesday that its cloud division has developed hardware to cool down next-generation Nvidia graphics processing units that are used for artificial intelligence workloads.

Nvidia’s GPUs, which have powered the generative AI boom, require massive amounts of energy. That means companies using the processors need additional equipment to cool them down.

Amazon considered erecting data centers that could accommodate widespread liquid cooling to make the most of these power-hungry Nvidia GPUs. But that process would have taken too long, and commercially available equipment wouldn’t have worked, Dave Brown, vice president of compute and machine learning services at Amazon Web Services, said in a video posted to YouTube.

“They would take up too much data center floor space or increase water usage substantially,” Brown said. “And while some of these solutions could work for lower volumes at other providers, they simply wouldn’t be enough liquid-cooling capacity to support our scale.”

Rather, Amazon engineers conceived of the In-Row Heat Exchanger, or IRHX, that can be plugged into existing and new data centers. More traditional air cooling was sufficient for previous generations of Nvidia chips.

Customers can now access the AWS service as computing instances that go by the name P6e, Brown wrote in a blog post. The new systems accompany Nvidia’s design for dense computing power. Nvidia’s GB200 NVL72 packs a single rack with 72 Nvidia Blackwell GPUs that are wired together to train and run large AI models.

Computing clusters based on Nvidia’s GB200 NVL72 have previously been available through Microsoft or CoreWeave. AWS is the world’s largest supplier of cloud infrastructure.

Amazon has rolled out its own infrastructure hardware in the past. The company has custom chips for general-purpose computing and for AI, and designed its own storage servers and networking routers. In running homegrown hardware, Amazon depends less on third-party suppliers, which can benefit the company’s bottom line. In the first quarter, AWS delivered the widest operating margin since at least 2014, and the unit is responsible for most of Amazon’s net income.

Microsoft, the second largest cloud provider, has followed Amazon’s lead and made strides in chip development. In 2023, the company designed its own systems called Sidekicks to cool the Maia AI chips it developed.

WATCH: AWS announces latest CPU chip, will deliver record networking speed

AWS announces latest CPU chip, will deliver record networking speed

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Bitcoin rises to fresh record above $112,000, helped by Nvidia-led tech rally

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Bitcoin rises to fresh record above 2,000, helped by Nvidia-led tech rally

The logo of the cryptocurrency Bitcoin can be seen on a coin in front of a Bitcoin chart.

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Bitcoin hit a fresh record on Wednesday afternoon as an Nvidia-led rally in equities helped push the price of the cryptocurrency higher into the stock market close.

The price of bitcoin was last up 1.9%, trading at $110,947.49, according to Coin Metrics. Just before 4:00 p.m. ET, it hit a high of $112,052.24, surpassing its May 22 record of $111,999.

The flagship cryptocurrency has been trading in a tight range for several weeks despite billions of dollars flowing into bitcoin exchange traded funds. Bitcoin purchases by public companies outpaced ETF inflows in the second quarter. Still, bitcoin is up just 2% in the past month.

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Bitcoin climbs above $112,000

On Wednesday, tech stocks rallied as Nvidia became the first company to briefly touch $4 trillion in market capitalization. In the same session, investors appeared to shrug off the latest tariff developments from President Donald Trump. The tech-heavy Nasdaq Composite notched a record close.

While institutions broadly have embraced bitcoin’s “digital gold” narrative, it is still a risk asset that rises and falls alongside stocks depending on what’s driving investor sentiment. When the market is in risk-on mode and investors buy growth-oriented assets like tech stocks, bitcoin and crypto tend to rally with them.

Investors have been expecting bitcoin to reach new records in the second half of the year as corporate treasuries accelerate their bitcoin buying sprees and Congress gets closer to passing crypto legislation.

Don’t miss these cryptocurrency insights from CNBC Pro:

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Perplexity launches AI-powered web browser for select group of subscribers

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Perplexity launches AI-powered web browser for select group of subscribers

Dado Ruvic | Reuters

Perplexity AI on Wednesday launched a new artificial intelligence-powered web browser called Comet in the startup’s latest effort to compete in the consumer internet market against companies like Google and Microsoft.

Comet will allow users to connect with enterprise applications like Slack and ask complex questions via voice and text, according to a brief demo video Perplexity released on Wednesday.

The browser is available to Perplexity Max subscribers, and the company said invite-only access will roll out to a waitlist over the summer. Perplexity Max costs users $200 per month.

“We built Comet to let the internet do what it has been begging to do: to amplify our intelligence,” Perplexity wrote in a blog post on Wednesday.

Perplexity is best known for its AI-powered search engine that gives users simple answers to questions and links out to the original source material on the web. After the company was accused of plagiarizing content from media outlets, it launched a revenue-sharing model with publishers last year.

In May, Perplexity was in late-stage talks to raise $500 million at a $14 billion valuation, a source familiar confirmed to CNBC. The startup was also approached by Meta earlier this year about a potential acquisition, but the companies did not finalize a deal.

“We will continue to launch new features and functionality for Comet, improve experiences based on your feedback, and focus relentlessly–as we always have–on building accurate and trustworthy AI that fuels human curiosity,” Perplexity said Wednesday.

WATCH: Perplexity CEO on AI race: The market of providing answers to questions will become a commodity

Perplexity CEO on AI race: The market of providing answers to questions will become a commodity

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