<p><strong><a href="https://www.aisi.gov.uk/blog/our-evaluation-of-openais-gpt-5-5-cyber-capabilities">Our evaluation of OpenAI&#x27;s GPT-5.5 cyber capabilities</a></strong></p> The UK's AI Security Institute <a href="https://www.aisi.gov.uk/blog/our-evaluation-of-claude-mythos-previews-cyber-capabilities">previously evaluated Claude Mythos</a>: now they've evaluated GPT-5.5 for finding security vulnerability and found it to be comparable to Mythos, but unlike Mythos it's generally available right now. <p>Tags: <a href="https://simonwillison.net/tags/ai">ai</a>, <a href="https://simonwillison.net/tags/openai">openai</a>, <a href="https://simonwillison.net/tags/generative-ai">generative-ai</a>, <a href="https://simonwillison.net/tags/llms">llms</a>, <a href="https://simonwillison.net/tags/anthropic">anthropic</a>, <a href="https://simonwillison.net/tags/claude">claude</a>, <a href="https://simonwillison.net/tags/ai-security-research">ai-security-research</a>, <a href="https://simonwillison.net/tags/gpt">gpt</a></p>

Apple CEO Tim Cook told analysts that AI adoption has happened faster than expected.

Dan Mangan / CNBC: The US Senate unanimously passed a rule barring senators from trading on prediction markets like Kalshi and Polymarket, amid rising concern over insider trading  —  The U.S. Senate on Thursday unanimously passed a rule barring senators from trading on prediction markets effective immediately.

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Annie Palmer / CNBC: Alphabet's stock climbed 10% on Thursday and 34% in April, its best month since 2004; Meta's stock plunged 8.5% on Thursday, its steepest drop since October  —  Alphabet's stock surged on Thursday, lifting Google to its best month on Wall Street since 2004, after the company reported better …

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Trump lashes out at Cassidy while announcing his new nomination.

"In 25 years, the average score... has never been so low."

Business Insider: Sources: Meta HR chief Janelle Gale told employees she can't rule out further layoffs; Zuckerberg said AI automation is not the driving factor behind them  —  - Meta previously announced it will cut 10% of its staff next month.  — Meta's HR chief told staff in a meeting that she can't promise further layoffs won't happen.

The Iran war has cost $25B so far — impacting everything from weapons stockpiles to global oil prices. Read the original article on Business Insider

"We had serious inbound attempts to the cosmodrome that day."

Disney CEO Josh D'Amaro has been in the top job since mid-March. Aurore Marechal/Getty Images Disney is reducing stock-based compensation for some tech employees. These employees' maximum stock award will drop to 25% of their base salary, from 35%. One Disney manager said the move helps Disney align with "the broader technology marketplace." Disney is reducing the amount of stock-based compensation that some tech employees can earn, Business Insider has learned. Two Disney software engineers said the ceiling for their potential long-term incentive awards — restricted stock units tied to performance that vest semi-annually over three years — is being cut to 25% of their base salary, down from 35%. "There's no way to sugarcoat it — this is a reduction in your total compensation," a director recently told one of the tech employees, according to a recording of the conversation obtained by Business Insider. This director said the change in stock-based pay was "totally unrelated" to their "performance or office status." Disney leadership "did a marketplace analysis, and they're making an adjustment to the strategic component of their pay," the director said. Then the director read from a prepared statement, saying Disney "recently completed a review of the US and Canada technology compensation market to ensure our hiring and compensation remain competitive and aligned with business priorities and the broader technology marketplace." It was not immediately clear how many employees would be impacted by the changes. When the employee asked if the decision could be challenged, the director said: "Their statement is: 'This decision has been made and is being applied across technology teams around the company.'" The director said their own compensation would be impacted. The second software engineer told Business Insider that they were told the cuts reflect a broader pullback in stock-based pay across the industry. The change does not affect stock awards that staffers have already received. Disney's long-term incentive plan is "an integral part" of employees' total compensation, along with their base salary and annual bonus, according to a screenshot of the employee handbook viewed by Business Insider. "Awards are approved as a dollar value, which is then converted into RSUs using the Fair Market Value of Disney's stock on the date of grant," the handbook said. Disney's stock has struggled and is roughly flat in the last decade, while the S&P 500 index has more than tripled. Shares have rallied 12.3% from a late-March low, though they remain down by more than 44% over five years. Disney laid off employees in mid-April as part of a reorganization of certain teams, including marketing. Laid-off employees received severance pay based on their level and tenure. This new reduction in stock awards for Disney staffers comes as the broader tech industry races to adapt to AI, with many companies laying off workers and finding other ways to cut costs. Major companies like Amazon, Oracle, and Meta have announced layoffs. Meta is planning to cut 10% of its staff in May, with additional layoffs possible later. Consulting giant Deloitte is scaling back benefits, like PTO and parental leave, for some employees. Have a tip about Disney? Contact this reporter via email at jfaris@businessinsider.com or Signal at @jamesfaris.01. Use a personal email address and a nonwork device; here's our guide to sharing information securely. Read the original article on Business Insider

<blockquote cite="https://lobste.rs/s/ifcyr1/contributor_poker_zig_s_ai_ban#c_cbtxub"><p>It's a common misconception that we can't tell who is using LLM and who is not. I'm sure we didn't catch 100% of LLM-assisted PRs over the past few months, but the kind of mistakes humans make are fundamentally different than LLM hallucinations, making them easy to spot. Furthermore, people who come from the world of agentic coding have a certain <em>digital smell</em> that is not obvious to them but is obvious to those who abstain. It's like when a smoker walks into the room, everybody who doesn't smoke instantly knows it.</p> <p>I'm not telling you not to smoke, but I am telling you not to smoke in my house.</p></blockquote> <p class="cite">&mdash; <a href="https://lobste.rs/s/ifcyr1/contributor_poker_zig_s_ai_ban#c_cbtxub">Andrew Kelley</a>, Creator of Zig</p> <p>Tags: <a href="https://simonwillison.net/tags/zig">zig</a>, <a href="https://simonwillison.net/tags/llms">llms</a>, <a href="https://simonwillison.net/tags/ai">ai</a>, <a href="https://simonwillison.net/tags/generative-ai">generative-ai</a></p>

Reinhardt Krause / Investor's Business Daily: Twilio reports Q1 revenue up 20% YoY to $1.41B, vs. $1.34B est., and forecasts Q2 revenue above estimates; TWLO jumps 17%+ after hours  —  Twilio (TWLO) stock popped after the communications software maker reported first-quarter earnings and revenue that topped consensus estimates.

Elon Musk spent three days testifying as the first witness in his trial against OpenAI.

Waymo is Alphabet's robotaxi service that operates in multiple US cities and plans to launch in cities around the globe. Paul Morris/Bloomberg via Getty Images Waymo is Alphabet's robotaxi service, formerly known as the Google Self-Driving Car Project. Waymo has been giving commercial rides to the public since 2020 and now operates in 11 US cities. Several other players, including Tesla, Zoox, and Motional, are launching competitive services. Waymo is a robotaxi service that began as a research project inside Google and has since scaled to be one of the leading fully autonomous ride-hailing companies in the world. The company launched public rides in Phoenix in 2020. By April 2026, Waymo expanded to several US cities and said it provided more than 500,000 autonomous rides a week. As the service has grown, Waymo has also faced public scrutiny over robotaxi mishaps. A massive power outage left Waymos stuck in the middle of intersections; they've failed to yield to school buses; and the death of a bodega cat after a Waymo ran over the animal has drawn criticism over the safety and responsiveness of autonomous cars. Waymo regularly publishes data showing that its robotaxis are safer than human drivers. New competitors have also entered the robotaxi race in just the past half-decade as the Alphabet company paves the way for adoption. Who can take a Waymo? Waymo is commercially available in 11 metropolitan regions as of April 2026. A Waymo travels in Santa Monica, California. Allen J. Schaben/Los Angeles Times via Getty Images Prospective riders within operating areas can download the Waymo One app and hail a robotaxi. In a few cities, riders can only hail a Waymo through other ride-hailing apps. In Austin and Atlanta, riders have to toggle through the Uber app to request a Waymo robotaxi. Riders are quoted the fare while booking a ride on the app. Waymo ride prices are based on trip distance and time, and a minimum fare is charged for all trips. Waymo doesn't disclose pricing data, but some studies have shown that the service is increasingly reaching price parity with Uber and Lyft. How do Waymo's robotaxis work? Waymo began offering public rides in Phoenix in 2020. It has since expanded to several other US cities. Mario Tama/Getty Images Waymo's robotaxis are electric and use a mixture of mapping technology, artificial intelligence, and sensors to drive autonomously. Before Waymo launches a robotaxi service in a region, the company deploys a fleet of human-driven cars attached with sensors to create highly detailed maps of the environment. The company has said that this allows the driving system to drive better and more predictably. "For example, when the Waymo Driver approaches an intersection, not only can it sense a car that might cut across its path, but because of our custom maps, it also knows that vehicle has a stop sign," the company said in a blog post. Waymo's robotaxi also relies on a suite of sensors, including cameras, radar, and lidar. Lidar is a laser light that can measure distance and depth. The company's use of lidar has been the subject of much debate within the industry. Tesla CEO Elon Musk has said that lidar is a costly "crutch" and that cars should be able to drive themselves with cameras only. Waymo's co-CEO Dmitri Dolgov said the various sensors can allow a car to detect things that cameras can't detect immediately, such as a pedestrian crossing blocked by a bus or a distant car in a dust storm. Despite being autonomous, a dedicated human workforce exists entirely to support robotaxi operations outside the engineers working on the autonomous software. Humans, for example, are responsible for charging and maintaining the cars at robotaxi depots, which are strategically located in the cities where the fleet operates. Humans are also needed to man the remote support centers in case customers need help during a ride. This does not mean humans remotely drive the vehicles. The company has said that the AI driver is fully in control of the driving functions and that remote support agents can only provide more information or context to the autonomous driver. Waymo said it had about 70 "remote assistants" worldwide as of February 2026. What does Waymo do? Waymo makes the software and mobile app for its fully autonomous ride-hailing service. The company itself doesn't manufacture the vehicles. Instead, it buys vehicles from other automakers and retrofits them with Waymo's proprietary sensor suite and software. Waymo has partnered with automakers like Jaguar, Hyundai, and Zeekr, a Chinese EV company. The company built a 239,000-square-foot factory in Mesa to support the retrofitting operations. Waymo has said that it plans to expand its business outside of ride-hailing to include delivery service, long-haul trucking, and putting its software in consumer cars. In April 2025, the company said it was in early talks with legacy automaker Toyota to bring autonomous driving to personally owned vehicles. In October 2025, Waymo announced a partnership with DoorDash to launch an autonomous delivery service in Phoenix. Waymo's expansion plans Waymo said it has plans to expand to more than 20 cities, including London and Tokyo. The company has begun testing in Tokyo and said it will start offering public rides in London by late 2026. Other cities Waymo is targeting include Boston, Detroit, Sacramento, San Diego, and Washington, D.C. To support its expansion plans, Waymo said in February 2025 that it raised $16 billion for a $126 billion valuation. Alphabet was the largest backer, with additional funding coming from major investment firms, including Dragoneer Investment Group, DST Global, and Sequoia Capital. Who are Waymo's competitors? Waymo has begun mapping out the streets of Tokyo, a sign of its ambitions to expand beyond US markets. Courtesy Waymo Several companies have announced plans to launch their own robotaxi services since Waymo began offering public rides. In June 2025, Tesla started offering supervised, driverless rides with 10 to 20 cars operating within a geo-fenced area of Austin. Musk said the company can quickly expand its service and took multiple shots at Waymo, saying the Alphabet company's robotaxis cost more to expand. Amazon-backed Zoox uses a purpose-built robotaxi — meaning the car has no steering wheels or pedals — and began giving rides to the public in limited parts of Las Vegas and San Francisco. The company opened a 220,000 square-foot production facility in California to manufacture more robotaxis. Hyundai's Motional is another robotaxi player that plans to launch a driverless service by the end of 2026. There are also software-oriented companies that develop autonomous driving technology and have partnered with ride-hailing platforms. Uber, a Waymo partner, is launching a competing service through its partnerships with Nuro and Lucid Motors. Lyft, another Waymo partner, is also taking the partnership route with May Mobility, an Ann Arbor-based company, and Tensor, an automaker. Robotaxis also operate outside the US. In China, driverless taxis continue to expand with companies like Baidu's Apollo Go and WeRide. Waymo's beginnings Waymo was initially formed by Google and was known as the Google Self-Driving Car Project. After seven years of research and development, it eventually spun out into its own company in 2016. Alphabet remains Waymo's majority owner. Google began developing Waymo and its self-driving technology in 2009 at the Google X lab, led by Google cofounder Sergey Brin. Sebastian Thrun, a pioneer in the self-driving industry, was tapped to lead the project. After almost two years of testing the technology, Google and The New York Times revealed its existence in late 2010. One of Waymo's early testing vehicles was the Chrysler Pacifica minivan. Andrej Sokolow/picture alliance via Getty Images US lawmakers raised concerns at the time about the lack of regulations for this new technological frontier. Google was a prominent supporter, lobbying for regulation. By 2012, Nevada's Department of Motor Vehicles had licensed a self-driving Prius running Google's software, marking the first time that a self-driving vehicle had been licensed in the United States. In 2022, Alphabet CEO Sundar Pichai distanced Waymo and Alphabet's other subsidiaries from Google by granting them more autonomy to design job structures and compensation outside Google's job architecture. Waymo was affected by Google's 2023 layoffs, when the company cut roughly 8% of its staff. Despite the restructuring, Waymo's offices remain in Mountain View, California, a short drive from the Googleplex, Google's global headquarters. Is Waymo safe? Waymo says its driverless vehicles are safer than human drivers, but as with any frontier technology, autonomous taxis are not perfect. Data from Waymo provided to the California Public Utilities Commission showed that the company's robotaxis were involved in at least 419 collisions between March 2022 and March 2025. Still, an analysis by Business Insider found that Waymo significantly reduced the collision rate over those three years. Between March and May 2022, the collision rate was about 147 per 100,000 rides. Between January and March 2025, the rate reduced to about 7 collisions per 100,000 rides. When comparing human drivers over the same distance within the company's operating cities, Waymo says its autonomous driver experiences 93% fewer pedestrian crashes with injuries and 79% fewer crashes with airbag deployments. Waymo's robotaxis have been documented experiencing some technical issues, however. One rider told Business Insider that his Waymo ride was stuck driving in circles. A San Francisco resident recorded footage of the robotaxis honking at each other at a Waymo depot. In December 2025, Waymo's service in San Francisco stalled after a massive power outage struck the city. Footage on social media showed Waymo's robotaxis stuck in the middle of intersections, further clogging roadways. The company said at the time that the blackout triggered a backlog of requests from the autonomous cars seeking more guidance from human operators. Kyle Wilson contributed to this article. Read the original article on Business Insider

Elon Musk spent hours testifying in his case against OpenAI and Sam Altman. Benjamin Fanjoy/Getty Images Elon Musk repeatedly referenced an AI "Terminator" scenario while testifying about OpenAI. The judge presiding over the trial shut down the AI doomsday talk on Thursday. Musk is suing over $38 million he donated to OpenAI's nonprofit, and AI safety is key to his case. AI safety, yes. AI apocalypse, no. The California judge overseeing Elon Musk's civil trial against OpenAI and CEO Sam Altman shut down the Tesla CEO's robot-apocalypse talk on Thursday — drawing a hard line against any further doomsday speculation in her courtroom. "We're not going to talk about extinction in this case," Judge Yvonne Gonzalez Rogers told Musk on this third day of testimony in the high-profile case. The reprimand came after Musk answered questions about Tesla's robot-making business and his past comments about "building a robot army." "No, we do not make weapons," said Musk of Tesla, while under questioning from his lawyer, Steven Molo. Musk added, "We don't want a 'Terminator' situation,'" in reference to the 1984 flick starring Arnold Schwarzenegger. When asked to clarify, Musk said, "In the movie it's not a good situation," and that the "worst situation would be that AI kills us all, I suppose." The trial over the $38 million Musk says he donated to OpenAI entered its fourth day on Thursday. Musk alleges that his fellow OpenAI cofounders, Altman and company president Greg Brockman, abandoned OpenAI's founding mission as a nonprofit dedicated to developing AI for the public's benefit, and not for private gain. They were "unjustly enriched to the tune of hundreds of billions of dollars," Musk's lawsuit says. Despite owning Grok maker xAI, Musk has long been vocal about what he says are the risks of AI. "If you're not concerned about AI safety, you should be. Vastly more risk than North Korea," he tweeted in 2017. Since taking the witness stand on Tuesday, he made multiple references to what might happen if AI gets out of control, even comparing the technology to a small child who might "blow up" without the right guidance. "That has been my long-standing concern about AI, which is what happens when the computer gets much smarter than humans?" Musk told the jury. Musk said that if humans and AI ever came into conflict, he'd always be "pro-humans." "We don't want to have a 'Terminator outcome,'" he said in his day-one testimony. Read the original article on Business Insider

Several npm packages for SAP's cloud application development ecosystem have been compromised as TeamPCP's supply chain attacks broaden.

Anhata Rooprai / Reuters: Atlassian reports Q3 revenue up 32% YoY to $1.79B, vs. $1.69B est., and raises its annual revenue forecast; TEAM jumps 17%+ after hours  —  Atlassian (TEAM.O) raised its annual revenue forecast on Thursday, betting that its investments in artificial-intelligence features and a push …