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VAST Data raises $1B at $30B valuation with Nvidia backing as AI data infrastructure demand accelerates

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Summary: VAST Data raised $1 billion in a Series F at a $30 billion valuation, more than tripling from $9.1 billion, with Drive Capital and Access Industries co-leading and Nvidia, Fidelity, and NEA participating. More than $500 million is secondary capital. The company reports $4 billion in cumulative bookings, $500 million-plus in committed ARR, and is free cash flow positive with revenue roughly tripling year over year. Key customers include xAI’s 200,000-GPU Colossus cluster and CoreWeave’s $1.17 billion agreement.

VAST Data raised $1 billion in a Series F round at a $30 billion valuation, more than tripling the $9.1 billion it was valued at in its Series E in late 2023. Drive Capital and Access Industries co-led the round, with Nvidia, Fidelity Management and Research Company, and NEA participating. More than $500 million of the total is secondary capital, meaning it goes to early investors and employees selling shares rather than into the company’s treasury, a structure that relieves liquidity pressure on long-tenured shareholders and reduces the urgency of an IPO. The round makes VAST Data the most valuable private technology company founded in Israel, following Google’s $32 billion acquisition of Wiz in March.

The valuation is striking not because a company raised a billion dollars in 2026, a year in which record AI funding rounds have reshaped expectations of what venture-scale capital looks like, but because VAST Data sells data infrastructure, the layer of the AI stack that sits between the GPUs and the models. It is not a foundation model company. It is not a cloud provider. It is the company that ensures the data reaches the processors fast enough to keep them busy. Jensen Huang, Nvidia’s chief executive, recorded a personal endorsement at VAST’s Forward 2026 conference, stating that “with VAST Data, we’re transforming the storage of AI infrastructure” and explaining that without VAST’s technology, even the fastest AI processors face severe data bottlenecks. When the company that makes the GPUs tells you the GPUs are useless without a particular data platform, investors listen.

What VAST Data actually does

VAST Data provides what it calls an AI operating system that unifies storage, database, and compute into a single platform. The core architecture, called DASE (Disaggregated and Shared Everything), was announced when the company emerged from stealth in February 2019. It is flash-first and single-tier, eliminating the traditional storage hierarchy in which data moves between fast, expensive tiers and slow, cheap ones. For AI workloads, where training runs consume petabytes of data at sustained high throughput, the elimination of tiering removes a bottleneck that legacy storage systems were never designed to handle.

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The platform has expanded well beyond storage. VAST DataSpace provides a globally distributed namespace across on-premises, cloud, and edge locations, scaling to exabytes and trillions of files. VAST InsightEngine automates real-time AI pipelines, handling chunking, embedding, vectorisation, and retrieval for retrieval-augmented generation, semantic search, and classification. VAST DataBase includes an integrated vector store that the company claims supports trillion-vector scale with constant-time search. VAST CNode-X, an Nvidia-certified system, makes GPU servers first-class infrastructure components inside the platform, with a fully CUDA-accelerated version of the operating system designed to run directly on Nvidia-powered servers. The pitch is that VAST is not a storage company that added AI features. It is a data platform that was built for AI from the beginning, and the storage is just the foundation.

The numbers

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VAST Data has accumulated more than $4 billion in cumulative bookings and reports more than $500 million in committed annual recurring revenue as of the end of fiscal year 2026. CTech, the technology publication of the Israeli financial newspaper Calcalist, reports that total ARR including non-committed revenue has reached $2 billion. Revenue has been roughly tripling year over year. The company is generating more than $100 million in cash per quarter and is free cash flow positive with a positive operating margin, unusual for a company at this growth rate. The customer base has quadrupled among Fortune 1000 companies, with the top 100 new customers spending more than $1.2 million on average. Contracts typically run five to seven years.

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The marquee customer relationships illustrate the scale. VAST Data powers the data platform behind xAI’s Colossus supercomputing cluster, a facility with more than 200,000 Nvidia GPUs where VAST says it reduced total cost of ownership by 50%. CoreWeave signed a $1.17 billion commercial agreement in November 2025, using VAST as the primary data foundation for its Nvidia-accelerated computing cloud. Other customers include Pixar, which uses the platform for petabytes of rendered assets as AI training data, NASA, the US Department of Energy, Boston Children’s Hospital, Booking Holdings, and several of the world’s largest banks. Renen Hallak, VAST’s founder and chief executive, said the company is “already supporting AI environments spanning millions of GPUs globally, operating across every layer of the AI stack.”

The data layer thesis

The investment thesis behind a $30 billion valuation for a data infrastructure company rests on a structural argument about how the AI stack works. The industry has spent three years and hundreds of billions of dollars on GPUs. Surging global AI investment, which the Stanford AI Index pegged at $285.9 billion in US private AI capital in 2025 alone, has been concentrated overwhelmingly on compute. But a GPU that is waiting for data is a GPU that is not training. The data layer, the infrastructure that stores, indexes, moves, and transforms the data that feeds the models, is increasingly recognised as the binding constraint on AI performance.

This is why Nvidia is not just investing in VAST Data but actively integrating its technology. The CUDA-accelerated operating system and CNode-X certification mean that VAST’s platform is designed to run on the same Nvidia hardware that runs the models, eliminating the traditional separation between storage infrastructure and compute infrastructure. Nvidia-backed AI infrastructure companies now span the entire stack, from GPU cloud providers to chip fabrication to data platforms, and VAST’s role is to ensure that the data moves as fast as the silicon can process it.

AI infrastructure startup valuations have been climbing sharply across the sector. FluidStack is in talks to raise $1 billion at an $18 billion valuation. CoreWeave, VAST’s largest customer, was valued at $35 billion earlier this year. Enterprise AI infrastructure deals like Jane Street’s $6 billion cloud commitment to CoreWeave, with a $1 billion equity investment attached, illustrate that demand for AI infrastructure is broadening beyond the hyperscalers into financial services, healthcare, and government. VAST’s position at the data layer of these environments, not the compute layer and not the model layer, is what makes the valuation argument distinct from the GPU cloud companies. If the compute layer is the engine, VAST is the fuel line. A $30 billion fuel line is expensive. The argument is that without it, the engine does not run.

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The competitive landscape

VAST Data is not the only company building AI-native data infrastructure. DDN and WEKA are the two most frequently cited competitors, both offering high-performance storage platforms optimised for machine learning workloads. Hammerspace provides a global data orchestration layer. The incumbents, Dell, HPE, Hitachi Vantara, IBM, NetApp, and Pure Storage (recently rebranded as Everpure), are all deepening their Nvidia integrations and repositioning their storage portfolios for AI. Pure Storage’s FlashBlade products compete directly with VAST on performance. NetApp has expanded its AI storage services. All of them have larger installed bases and longer customer relationships than VAST.

VAST’s argument is that legacy storage architectures, designed for databases and file servers and retrofitted for AI, cannot deliver the sustained throughput that training runs at the scale of Colossus require. The single-tier, flash-first architecture eliminates the data movement that tiered systems impose, and the integrated database and compute capabilities mean that data transformation, the chunking, embedding, and vectorisation that AI pipelines require, happens within the platform rather than in a separate processing layer. Whether that architectural advantage is durable or whether the incumbents can close the gap will determine whether a $30 billion valuation looks prescient or excessive in three years.

Hallak has told employees and bankers that the company has considered an IPO in the second half of 2026 or later, according to The Information. The secondary-heavy structure of the Series F suggests that timeline is not imminent. VAST Data can afford to wait. It is cash-flow positive, tripling revenue, and sitting at the centre of the most capital-intensive technology buildout since the internet. The question is not whether the data layer matters. It is whether $30 billion is the right price for the company that is building it.

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Google confirms context-aware Siri built from Gemini will debut in 2026

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Search giant Google has publicly confirmed that Apple’s updated Siri, complete with its long-promised personalized responses, will finally be coming out at some point in 2026.

Man in a gray suit stands on a dark, curved stage under a large glowing Apple logo, delivering a presentation in a dramatic, spotlighted auditorium setting
Google Cloud CEO Thomas Kurian talking about Apple at Google Cloud Next 26 – Image Credit: Google/YouTube

In January, Apple confirmed that it had entered into a multi-year deal with Google to use the Gemini model to create Apple’s Foundation Models. Google now says that the fruits of Apple’s AI labor will be on display before the end of 2026.
Speaking at the Google Cloud Next 26 opening keynote, Google Cloud CEO Thomas Kurian talked about Apple as a key customer of the company. Standing in front of the Apple Logo in the auditorium, he enthused about how Apple was using its technology.
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Leak hints at Canon EOS R8 II launch with a retro design

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Canon might be about to lean into nostalgia with its next full-frame mirrorless camera.

According to a fresh leak, the EOS R8 II is in the works. It could arrive with a retro-inspired design to mark 50 years since the iconic AE-1.

The report, via CanonRumors, suggests the upcoming model will act as a direct successor to the EOS R8, which is now over three years old.

But instead of a routine refresh, Canon is said to be rethinking the design entirely. Specifically, Canon may draw inspiration from the Canon AE-1, one of its most successful cameras ever. Over five million AE-1 units have sold since its 1976 debut.

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That could mean a more angular body, a smaller grip, and potentially a different control layout compared to Canon’s current mirrorless lineup. While details are still thin, the shift hints at something closer to the growing trend of retro-styled digital cameras. In other words, Canon might blend modern internals with classic aesthetics.

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Outside of the design, there’s little confirmed about the EOS R8 II so far. Specs, pricing, and an exact launch date remain under wraps, though the leak claims the camera could arrive “soon.” Whether Canon will pair it with matching retro-style lenses is also unclear at this stage.

Interestingly, the EOS R8 II might not be launching alone. The same source suggests Canon is also preparing an EOS R6 V, reportedly aimed at video-focused users with upgraded filming features. However, specifics haven’t surfaced yet.

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For now, the retro angle is the standout. If accurate, the EOS R8 II could signal a rare stylistic shift for Canon, which has largely stuck to modern, functional designs in its mirrorless range.

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Sam Altman’s Orb Company Promoted a Bruno Mars Partnership That Doesn’t Exist

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Sam Altman’s eyeball-scanning startup, Tools for Humanity, announced last week that a new product called Concert Kit—designed to give verified humans a way to purchase concert tickets—would first roll out on Bruno Mars’ world tour of his latest studio album, The Romantic.

However, Bruno Mars Management and Live Nation, the producer for the Romantic Tour, told WIRED in a joint statement on Tuesday that the partnership “does not exist,” and that Tools for Humanity never even approached them about working together.

The confusion stemmed from a Tools for Humanity event April 17 in San Francisco, where chief product officer Tiago Sada said the company would be joining the Romantic Tour to not just provide access to tickets but also “VIP experiences for verified humans.”

The statement was reiterated in a blog post published by the company, which read: “Concert Kit launches today and will roll out during the Bruno Mars World Tour featuring DJ Pee .Wee (aka Anderson .Paak), where verified humans will have exclusive access to VIP suite experiences at select stops.”

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A video of the event, and the company’s blog post, have since been edited and reshared by Tools for Humanity. They now say that Concert Kit will roll out on the 2027 European tour for Jared Leto’s band, Thirty Seconds to Mars.

“To be clear, we were never approached by TFH, nor were we in any discussions regarding a partnership or tour access,” said Bruno Mars’ Management and Live Nation in a joint statement to WIRED. “We first learned that our tour was being used to promote their project after their keynote made those initial claims.” (WIRED had referenced the Bruno Mars partnership in its original story about the event; the story has since been updated to include this new information.)

A spokesperson for Tools for Humanity confirmed to WIRED in a statement Wednesday that the startup “does not have any agreement with Bruno Mars to test or feature Concert Kit, and there is no association or affiliation with the artist or his tour.” Tools for Humanity declined to explain why they announced Mars as a partner for the project in the first place.

Tools for Humanity was cofounded in 2019 by OpenAI CEO Sam Altman and German entrepreneur Alex Blania, with the aim of using blockchain technology to verify people in online environments where scams are prevalent. In 2023, the company launched a physical, iris-scanning orb that works in conjunction with a mobile app.

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While Live Nation and Bruno Mars Management say they “have no opinions for or against their products,” it’s possible that Live Nation is feeling prickly about Tools for Humanity for other reasons. The startup is proposing that Concert Kit will help thwart the bot problem that plagues sites like Ticketmaster—which is owned by Live Nation.

In September, Bloomberg reported that the US Federal Trade Commission was investigating Ticketmaster over whether it had done enough to keep bots off its platform. Anderson .Paak made a cameo at the Tools for Humanity event to vouch for this approach, saying to the crowd, “I fucking hate bots … they make everything really shitty. Especially for the fans.” (Anderson .Paak, for what it’s worth, will soon be touring with Bruno Mars under his moniker DJ Pee .Wee. The plot thickens.)

Tools for Humanity also took a jab at Ticketmaster in its press release for last week’s event, saying that “diehard Swifties will never forget the Eras Tour presale, where Ticketmaster faced 3.5 billion system requests in a single day, locking out millions of fans.”

The partnership with Mars was one of many announced at Tools for Humanity’s Lift Off event, which aimed to legitimize the startup’s identity-verifying technology by working with major brands. Executives from Tinder, Zoom, and Docusign said they’d be expanding their work with Tools for Humanity at the event. In the past, Tools for Humanity has struggled to get governments around the world on board with its technology as a safe, privacy-protecting way to identify real humans.

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Amazon names AWS exec Prasad Kalyanaraman to S-team, promotes Dave Brown to SVP

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Prasad Kalyanaraman, VP of AWS Infrastructure Services, has been named to Amazon’s senior leadership team. (Amazon Photo)

Amazon added a new member to its senior leadership team Wednesday, naming AWS infrastructure chief Prasad Kalyanaraman to the group known as the S-team or “steam,” while also promoting cloud computing and AI services leader Dave Brown to senior vice president.

CEO Andy Jassy announced the changes internally, according to a memo viewed by GeekWire, and the company updated its public list of S-team members to reflect the changes.

Kalyanaraman oversees AWS infrastructure, including data centers, networking, and supply chain. He has been with the company for more than 20 years, starting in Amazon’s fulfillment and supply chain operations before moving to the cloud division in 2012.

Jassy’s memo praised his “customer obsession, high standards, ability to be right often, delivery, and missionary approach (always focusing on what’s best for customers — and the company as a whole vs. just his own area),” alluding in part to Amazon’s leadership principles

Dave Brown, newly promoted to senior vice president at Amazon, leads AWS EC2 and AI services including Bedrock and SageMaker. (Amazon Photo)

Brown leads AWS compute services (EC2) along with fast-growing AI services including Bedrock and SageMaker. He has been on the S-team since 2023, previously as a vice president.

“There are several reasons for his promotion, but chief among them are his outstanding delivery, propensity to look around corners and deliver services customers want, being right a lot, obsessing about customers, and continuing to develop strong teams,” Jassy wrote.

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The addition of Kalyanaraman brings the S-team back up to 28 members. That’s still down from more than 30 when the last big round of additions was made in September 2023. 

In the meantime, the group has seen departures including Adam Selipsky as AWS CEO (replaced by Matt Garman); longtime devices chief Dave Limp, (succeeded by former Microsoft executive Panos Panay); artificial intelligence leader Rohit Prasad; grocery head Tony Hoggett; and device software leader Rob Williams. 

Here’s the full list as it stands now.

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‘Simply by doing their daily work’: Meta tracks staff activity to teach AI how to replace them

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  • Meta is recording employee clicks, keystrokes, and screen activity to train AI agents on real work behavior
  • The program is part of a broader push to build AI systems that can perform everyday tasks with minimal human input
  • The move comes just ahead of reports of layoffs at the company

Meta has begun collecting everything its employees do as they go about their normal work to train its AI models, as first reported by Reuters. The Model Capability Initiative records mouse movements and clicks, keyboard keystrokes, and even occasional screenshots from computers used by Meta employees in the U.S. The company wants to observe how people actually use software, then feed that behavior into AI models so they can learn to do the same things.

Meta essentially wants to make its systems more reliable for the small actions that define a workday. That means everything from navigating a menu and moving between windows to parsing different website formats. These aren’t easily solved with text data alone.

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How Gut Bacteria May Affect The Outcome Of Cancer Immunotherapy

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In the ongoing development of cancer immunotherapy, as well as our still developing understanding of the human immune system, there’s always been a bit of massive elephant in the room. The thing about human bodies is that they’re not just human cells, but also consist of trillions of bacteria that mostly live in the intestines. What effect these bacteria have on the immune system’s functioning and from there on immunotherapies was recently investigated by [Tariq A. Najar] et al., with an article published in Nature.

The relevant topic here is that of antigenic mimicry, involving microbial antigens that resemble self-antigens. Since these self-antigens are a crucial aspect of both autoimmune diseases and cancer immunotherapy there is considerable room for interaction with their microbial mimics. Correspondingly these mimics can have considerable negative as well as positive implications, ranging from potentially triggering an autoimmune condition to hindering or boosting cancer immunotherapy.

In this study mice were used to investigate the effect of such microbial interference, in particular focusing on immune checkpoint blockade (ICB), which refers to negative feedback responses within the immune system that some cancers use to protect themselves. In some immunotherapy patients ICB inhibiting using e.g. anti programmed cell death protein (anti-PD-1) treatment does not provoke a response for some reason.

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For the study mice had tumors implanted and the effect of a particular microbe (segmented filamentous bacteria, SFB) on it studied, with the presence of it markedly improving the response to anti-PD-1 treatment due to anti-gens expressed by SFB despite the large gut-skin distance. Whether in humans similar mechanisms play a similarly strong role remains to be investigated, but it offers renewed hope that cancer immunotherapies like CAR T-cell immunotherapy will one day make cancer an easily curable condition.

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Complete will combine remasters and a sequel into one package

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Last year, Ecco the Dolphin creator Ed Annunizata teased plans to remaster the first two games in the series and create an entirely new sequel. Ecco the Dolphin: Complete, announced by Annunziata’s studio A&R Atelier, appears to be the result of that work. The game doesn’t have a release date yet, but A&R Atelier says it combines the planned remasters and third title into “the complete, definitive Ecco the Dolphin experience, created by the people who made the originals.”

Complete includes “all versions of Ecco the Dolphin and Ecco: The Tides of Time,” according to the developer, alongside “a brand-new contemporary Ecco game.” Besides graphical improvements, A&E Atelier says the game will introduce “built-in speedrunning support, achievements and leaderboards,” and things like the ability to create custom courses from existing levels. And while A&R Atelier’s announcement doesn’t include footage of the new game or the platforms it’ll release on, the official Ecco the Dolphin website has a countdown clock that could point to when more information will be released.

Annunziata sued Sega to try and win the rights to the Ecco the Dolphin IP in 2013, the same year he failed to get The Big Blue, a spiritual sequel to Ecco the Dolphin, fully funded on Kickstarter. Sega and Annunziata ultimately settled their lawsuit in 2016, which may have laid the groundwork for Ecco the Dolphin: Complete to happen.

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Ping-Pong Robot Makes History By Beating Top-Level Human Players

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Sony AI’s autonomous table-tennis robot Ace has become the first robot to compete against top-level human players. Reuters reports: Ace, created by the Japanese company Sony’s AI research division, is the first robot to attain expert-level performance in a competitive physical sport, one that requires rapid decisions and precision execution, the project’s leader said. Ace did so by employing high-speed perception, AI-based control and a state-of-the-art robotic system. There have been various ping-pong-playing robots since 1983, but until now they were unable to rival highly skilled human competitors. Ace changed that with its performances against human elite-level and professional players in matches following the rules of the International Table Tennis Federation, the sport’s governing body, and officiated by licensed umpires.

The project’s goal was not only to compete at table tennis but to develop insights into how robots can perceive, plan and act with human-like speed and precision in dynamic environments. In matches detailed in the study, Ace in April 2025 won three out of five versus elite players and lost two matches against professional players, the top skill level in the sport. Sony AI said that since then Ace beat professional players in December 2025 and last month. “The success of Ace, with its perception system and learning-based control algorithm, suggests that similar techniques could be applied to other areas requiring fast, real-time control and human interaction — such as manufacturing and service robotics, as well as applications across sports, entertainment and safety-critical physical domains,” said Peter Durr, director of Sony AI Zurich and leader for Sony AI’s project Ace.

The findings have been published in the journal Nature.

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Ultrahuman Launched the First Smart Ring Integration for Expert-Led Workouts

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Health tech company Ultrahuman, makers of the Ultrahuman Ring Air and Ring Pro, launched a partnership with group workout brand Les Mills on Wednesday. Together, the companies created the Les Mills PowerPlug in the Ultrahuman app, which recommends workouts based on data collected by its smart rings, like sleep, recovery and cycle phase. 

Traditionally, when your smartwatch or ring tells you that your body is fatigued and that you should take it easy during your workout, it doesn’t provide the workout. With this new integration, the Les Mills PowerPlug offers expert-led, on-demand workout videos that take your current health status into account and help prevent overtraining.

“With Les Mills, we’re closing the loop — your ring doesn’t just tell you how recovered you are, it tells you what to do about it. The right workout, at the right intensity, every day. That’s what training smarter actually looks like,” Mohit Kumar, CEO of Ultrahuman, said in a press release.

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How the PowerPlug works

Upon downloading the Les Mills PowerPlug, Ultrahuman Ring users will be asked to choose their ideal training days, session length and a fitness goal from the following: cardio, strength, flexibility or general fitness. Going forward, the app’s home screen will then recommend two to three daily workouts based on your health data, along with a quick workout shortcut. 

You’ll also have access to Les Mills’s entire workout catalog, which you can sort by goal, program or duration. Yoga, strength, HIIT and stretching are just a few examples of the type of exercises you can perform.

Phone screens over a white background showing Les Mills workouts in the Ultrahuman app.

If you have accumulated sleep debt and your body is showing signs of fatigue, the Less Mills PowerPlug will likely suggest a recovery-forward yoga session.

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Ultrahuman x Less Mills

To select your workout recommendation, Ultrahuman uses its Dynamic Recovery score, a percentage from zero to 100 that symbolizes how prepared your body is to take on the day. It takes into account your sleep, temperature, stress rhythm, resting heart rate and heart rate variability and can change throughout the day with movement, naps and non-sleep deep rest like breathwork.

The Les Mills PowerPlug will also adapt its selections based on a user’s menstrual cycle. If they’re in a phase with more energy, such as the follicular or ovulatory phases, they’ll be advised to try a more intense workout. Low-energy luteal and menstrual phases will correlate with workouts that prioritize recovery, like yoga. During menstruation, high-impact workouts that are tough on the pelvic floor will be avoided. 

Once you complete your workout, you can then view your workout stats (duration, heart rate zones and calories), movement score, muscle group radar chart, daily goal progress and a post-workout recovery prediction that estimates your readiness for the next day.

The Les Mills PowerPlug price

Global Ultrahuman Ring Air and Ring Pro users can now purchase the Les Mills PowerPlug for $12 per month or $100 per year. 

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Due to a patent lawsuit with Oura, makers of the Oura Ring, the Ultrahuman Ring Air was previously banned in the US. However, in March, Ultrahuman launched its Ring Pro, which the US Customs and Border Protection approved for sale in the US. It is currently available for preorder and will start shipping on May 15. With a charging case, it costs $479.

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Opera Callas Diva Special Edition Loudspeakers at AXPONA 2026: Understated Italian Design That Doesn’t Care If You Notice

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Italian loudspeakers tend to follow their own playbook, and the Opera Callas Diva Special Edition distributed in the U.S. by Fidelity Imports, leans into that identity without apology. Priced at $13,999, this is a reflex, floor-standing design with a rear-firing radiation system (dipole), built around the kind of materials and construction choices that set Italian brands apart: hand-crafted wood cabinetry, leather-clad baffles, and tank-like assembly that feels more atelier than assembly line.

Whether the leather actually changes the sound is still a matter of debate, but as with most things Italian, it’s as much about feel and intent as measurable outcome.

There’s also a clear voicing philosophy here. Like most offerings from Sonus faber and Opera, the goal isn’t clinical neutrality; it’s a more romantic, expressive presentation that leans into tone and texture. That doesn’t mean these speakers lack drama; if anything, they just deliver it with better timing and less shouting over Sunday gravy at Nonna’s house. Think Sophia Loren, not a reality TV meltdown—controlled, confident, and fully aware of the effect… the kind of presence that makes a room go quiet when she crosses her legs, looks your way, and lets you wonder if you’re worth the match.

Fidelity Imports is pushing Opera hard in the U.S. right now, and it’s not difficult to understand why. Paired with electronics from Unison Research, the system synergy is obvious—cohesive, deliberate, and unmistakably Italian. Bellissima, but not in a way that begs for attention. It just assumes you’re paying attention already.

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Italian Engineering in a Tailored Suit, Not a Tracksuit

The Opera Callas Diva Special Edition is a reflex loaded, floor standing loudspeaker that combines a traditional forward firing driver array with a rear firing dipole tweeter system. It’s a hybrid approach that aims to balance direct sound with controlled rear radiation, adding spatial cues without turning the room into an echo chamber.

Up front, the speaker uses a single 8-inch long throw woofer paired with a 7-inch midrange driver featuring a re cooked polypropylene cone and phase plug. High frequencies are handled by a 1-inch Scan Speak 9700 tweeter, notably run without ferrofluid and incorporating a double decompression chamber, choices that typically favor openness and low mechanical damping over sheer robustness.

Around back, Opera adds two 1-inch tweeters in what it describes as a “natural dipole” configuration. This rear array expands the soundstage by introducing ambient high frequency energy, effectively making the system a 3-way plus rear dipole design rather than a conventional forward only speaker.

The crossover network is relatively straightforward, using 12 dB per octave slopes across all drivers, woofer, midrange, front tweeter, and rear tweeters, with crossover points centered approximately at 200 Hz and 2,000 Hz. This suggests a focus on phase coherence and smoother driver integration rather than aggressive filtering.

Frequency response is rated at 30 Hz to 25 kHz, covering full range playback without immediate reliance on a subwoofer. Sensitivity is specified at 90 dB (2.83V at 1 meter), making the speaker reasonably amplifier friendly, though the 4 ohm nominal impedance with a minimum above 3.2 ohms means it will benefit from stable current delivery.

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Power handling is listed at 240 watts without clipping, and placement guidelines recommend at least 10 cm, about 4 inches, from the rear wall, which is modest considering the inclusion of rear firing drivers.

Physically, the Callas Diva Special Edition is substantial: 116 x 37 x 53.5 cm (H x W x D), approximately 45.7 x 14.6 x 21.1 inches, and each speaker weighs 65 kg, about 143 pounds, including its metal base. This is not a lightweight cabinet, so think carefully about which relative still has the energy to help you move it after sausage and peppers. And don’t forget the cannoli. Marone!

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Italian Soul, British Precision, No Passport Required

Fidelity Imports had a lot of rooms at AXPONA. Enough that you start making choices. I only had time for a few. This one, and the Ruark Audio room were the ones that actually made me stop, close my eyes and listen, and silently wish that I didn’t have 30 more rooms to cover on the next two floors.

Part of it was the system; Opera speakers, Unison Research electronics, and the new Michell Gyro Turntable spinning records like it knew that a certain American competitor was MIA and that this was its moment to make everyone take notice.

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But it was also the reaction. People didn’t just walk in and walk out. They slowed down. Took a step closer. Leaned in to look at the front baffle, then drifted over to the turntable like it might tell them something if they got close enough. Weird that. Especially because it happened more than a few times.

Nobody rushed. Nobody talked too loud. That’s usually a sign. People stood along the back of the room and listened.

I wasn’t the only one who noticed. And in a show full of rooms fighting for attention, this one didn’t have to. Steve Jain needs to make this set-up a permanent hi-fi show experience.

Michell Gryo Turntable with Unison Research Unico PRE V2 and Unico DM V2 power amplifier at AXPONA 2026
Michell Gryo Turntable with Unison Research Unico PRE V2 and Unico DM V2 power amplifier at AXPONA 2026

The room was driven by the Unison Research Unico PRE V2 and Unico DM V2 power amplifier. Together, they retail for $18,498 USD. That’s not inexpensive, but in the context of AXPONA, it sits well below many of the larger systems on display.

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The Unico DM V2 is a high power, dual mono hybrid design using Unison Research’s A.S.H.A. Class A-AB output stage. The emphasis is on current delivery and stability into more demanding loudspeaker loads rather than chasing extreme specifications.

The Unico PRE V2 is a fully balanced preamplifier with a tube based input stage. It includes a well equipped MM/MC phono stage with selectable gain and loading, making it a viable option for vinyl playback without requiring an external phono stage.

There is no built in streaming platform or Bluetooth support. That appears to be a deliberate choice, leaving digital source selection to external components.

The PRE V2 does include an internal DAC based on the Sabre ES9018K2M converter. It uses a balanced output stage designed to integrate with the tube input section, with the goal of maintaining consistent tonal balance between digital and analog inputs.

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Digital connectivity includes USB-B, two S/PDIF, and two optical inputs. USB supports PCM up to 384 kHz and native DSD up to 256, along with DoP up to 128. S/PDIF and optical inputs support resolutions up to 192 kHz.

The Unico DM V2 is rated at 220 watts into 8 ohms and 340 watts into 4 ohms in stereo operation, with stability down to 2 ohms. In bridged mono configuration, it delivers 650 watts into both 8 ohm and 4 ohm loads.

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My biggest takeaway from this room? Synergy matters. A lot.

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Having spent time with and reviewed some of Unison Research’s tube amplifiers, the new pairing has a lot more palle, but it doesn’t trade away the qualities that made those designs stand out. The tonal balance, clarity, and sense of flow are still intact. It just brings more control and authority when the music asks for it.

Unison deserves your attention. So do these Opera loudspeakers. They’re expressive without being aggressive. They don’t grab your Members Only jacket and threaten you with brute force. They take a different approach and pull you in, keep you there, and let the music do the work.

There’s something to that. Not everything needs to hit you over the head to make its point.

More info at: operaloudspeakers.com | unisonresearch.com | michellaudio.com

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