A startup hopes to challenge Nvidia, AMD, and Intel with a chip that wrangles probabilities rather than ones and zeros. Extropic claims its exotic new chip, called XTR-0, could be thousands of times more energy efficient than existing chips when scaled up. Extropic, a startup developing an exotic new kind of computer chip that handles probabilistic bits, has produced its first working hardware along with proof that more advanced systems will tackle useful tasks in artificial intelligence and scientific research. The startup's chips work in a fundamentally different way to chips from Nvidia, AMD, and others, and promise to be thousands of times more energy efficient when scaled up. With AI companies pouring billions of dollars into building datacenters, a completely new approach could offer a far less costly alternative to vast arrays of conventional chips.

Is the US eyeing its next Latin American target? Why is Trump tearing down parts of the White House? Nvidia has become the first company to reach $5 trillion in market value amid a global artificial intelligence arms race. The chipmaker surge on Wednesday came only three months after the company topped the $4 trillion mark . Since the launch of ChatGPT in 2022, Nvidia's shares have climbed 12-fold as the AI frenzy propelled the S&P 500 to record highs, igniting a debate on whether frothy tech valuations could lead to the next big bubble.

Nvidia has hit a new milestone, becoming the first company in the world to reach a market value of $5tn (£3.8tn). The US chip-maker has rapidly climbed from a niche graphics-chip manufacturer to an AI titan, as euphoria about the potential of artificial intelligence keeps driving demand for its chips and propelling its stock to record highs. The company reached a market value of $1tn for the first time in June 2023 and hit the $4tn valuation mark just three months ago . Shares in the chip-maker rose as much as 5.6% to more than $212 on Wednesday morning, boosted by investor optimism about Nvidia's sales in China, which has been a geopolitical flashpoint. The world's most valuable company - the biggest winner in the AI spending spree - has soared past its rivals in the technology sector.

Character.AI bans users under 18 after being sued over child's suicide Move comes as lawmakers move to bar minors from using AI companions and require companies to verify users' age The chatbot company Character.AI will ban users 18 and under from conversing with its virtual companions beginning in late November after months of legal scrutiny. The announced change comes after the company, which enables its users to create characters with which they can have open-ended conversations, faced tough questions over how these AI companions can affect teen and general mental health, including a lawsuit over a child's suicide and a proposed bill that would ban minors from conversing with AI companions. "We're making these changes to our under-18 platform in light of the evolving landscape around AI and teens," the company wrote in its announcement. "We have seen recent news reports raising questions, and have received questions from regulators, about the content teens may encounter when chatting with AI and about how open-ended AI chat in general might affect teens, even when content controls work perfectly." Last year, the company was sued by the family of 14-year-old Sewell Setzer III, who took his own life after allegedly developing an emotional attachment to a character he created on Character.AI.

Is Trump losing patience with Putin? Will sanctions against Russian oil giants hurt Putin? How much of Europe's oil still comes from Russia? Russia strikes children's hospital in Ukraine as Kyiv hits energy sites A Russian strike on a children's hospital in southern Ukraine has wounded at least nine people, authorities have said, shortly after Kyiv targeted Russian energy sites with drones. Four children were injured in Russia's strike on the medical facility in Kherson on Wednesday, which Ukrainian President Volodymyr Zelenskyy described as a "deliberate" attack that shows Moscow does not want peace.

How do AI videos end up on Donald Trump's social media accounts? President Donald Trump, a septuagenarian known for his general avoidance of keyboards and computers, has somehow become America's first generative AI president. The most infamous example of his experimentation with AI-generated videos came ahead of the No Kings protests earlier this month. In the clip, the president is decked out in full gear, piloting a fighter jet bearing "KING TRUMP" on its side. Instead of a traditional pilot's helmet, however, the president is wearing a literal crown, just in case the rest of the visuals were too subtle.

Nvidia becomes world's first $5tn company amid stock market and AI boom Nvidia has become the world's first $5tn company, just three months after the Silicon Valley chipmaker was first to break through the barrier of $4tn in market value. In comparison, Nvidia's value is greater than the GDP of India, Japan and the United Kingdom, according to the International Monetary Fund (IMF). Shortly after US stock markets opened on Wednesday, Nvidia's shares touched $207.86 with 24.3bn shares outstanding, putting its market cap at $5.05tn. Ravenous appetite for Nvidia's chips, seen as the most cutting edge in powering artificial intelligence products and software, is the main reason that the company's stock price has increased so rapidly since early 2023. The wider US stock market has reached multiple record highs this week, buoyed up by expansive investment in artificial intelligence.

Ahead of Adobe's MAX Sneaks event, WIRED got an exclusive look at a new tool that can change the tone and style of a voice-over. All products featured on WIRED are independently selected by our editors. However, we may receive compensation from retailers and/or from purchases of products through these links. Adobe sat me down and played a short demo video with a matter-of-fact, if a bit boring, voice-over. It was nothing special, but after pulling up a transcript, highlighting the text, and choosing from a list of preset emotions, the vocal performance completely changed.

The image of Donald Trump as Halo protagonist Master Chief posted on the White House's X account. The image of Donald Trump as Halo protagonist Master Chief posted on the White House's X account. Why Trump's White House is using video game memes to recruit for ICE A recent spate of posts has garnered attention, but Trump and his allies have long been using gaming imagery to mobilise a toxic subculture of'rootless white males' J ust days after Microsoft announced Halo: Campaign Evolved, the next game in its famous science-fiction series, the White House shared an interesting picture on X . The image, which appears to be AI-generated, shows President Donald Trump wearing the armour of Halo's iconic protagonist, Master Chief, standing in salute in front of an American flag that's missing several stars. In his left hand is an energy sword, a weapon used by the alien enemies in the Halo games.

Kodiak AI's autonomous truck system achieved a safety score of 98 in Nauto's evaluation, tying with the safest human commercial fleets among over 1,000 tested.