Anthropic introduces cheaper, more powerful, more efficient Opus 4.5 model

Anthropic introduces cheaper, more powerful, more efficient Opus 4.5 model

fivenewscrypto    novembre 26, 2025   

Anthropic today released Opus 4.5, its flagship frontier model, and it brings improvements in coding performance, as well as some user experience improvements that make it more generally competitive with OpenAI’s latest frontier models.

Perhaps the most prominent change for most users is that in the consumer app experiences (web, mobile, and desktop), Claude will be less prone to abruptly hard-stopping conversations because they have run too long. The improvement to memory within a single conversation applies not just to Opus 4.5, but to any current Claude models in the apps.

Users who experienced abrupt endings (despite having room left in their session and weekly usage budgets) were hitting a hard context window (200,000 tokens). Whereas some large language model implementations simply start trimming earlier messages from the context when a conversation runs past the maximum in the window, Claude simply ended the conversation rather than allow the user to experience an increasingly incoherent conversation where the model would start forgetting things based on how old they are.

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Rivals object to SpaceX’s Starship plans in Florida—who’s interfering with whom?

Rivals object to SpaceX’s Starship plans in Florida—who’s interfering with whom?

fivenewscrypto    novembre 26, 2025   

The commander of the military unit responsible for running the Cape Canaveral spaceport in Florida expects SpaceX to begin launching Starship rockets there next year.

Launch companies with facilities near SpaceX’s Starship pads are not pleased. SpaceX’s two chief rivals, Blue Origin and United Launch Alliance, complained last year that SpaceX’s proposal of launching as many as 120 Starships per year from Florida’s Space Coast could force them to routinely clear personnel from their launch pads for safety reasons.

This isn’t the first time Blue Origin and ULA have tried to throw up roadblocks in front of SpaceX. The companies sought to prevent NASA from leasing a disused launch pad to SpaceX in 2013, but they lost the fight.

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DOGE “cut muscle, not fat”; 26K experts rehired after brutal cuts

DOGE “cut muscle, not fat”; 26K experts rehired after brutal cuts

fivenewscrypto    novembre 26, 2025   

After Donald Trump curiously started referring to the Department of Government Efficiency exclusively in the past tense, an official finally confirmed Sunday that DOGE “doesn’t exist.”

Talking to Reuters, Office of Personnel Management (OPM) Director Scott Kupor confirmed that DOGE—a government agency notoriously created by Elon Musk to rapidly and dramatically slash government agencies—was terminated more than eight months early. This may have come as a surprise to whoever runs the DOGE account on X, which continued posting up until two days before the Reuters report was published.

As Kupor explained, a “centralized agency” was no longer necessary, since OPM had “taken over many of DOGE’s functions” after Musk left the agency last May. Around that time, DOGE staffers were embedded at various agencies, where they could ostensibly better coordinate with leadership on proposed cuts to staffing and funding.

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Arduino’s new terms of service worries hobbyists ahead of Qualcomm acquisition

Arduino’s new terms of service worries hobbyists ahead of Qualcomm acquisition

fivenewscrypto    novembre 26, 2025   

Some members of the maker community are distraught about Arduino’s new terms of service (ToS), saying that the added rules put the company’s open source DNA at risk.

Arduino updated its ToS and privacy policy this month, which is about a month after Qualcomm announced that it’s acquiring the open source hardware and software company. Among the most controversial changes is this addition:

User shall not:

• translate, decompile or reverse-engineer the Platform, or engage in any other activity designed to identify the algorithms and logic of the Platform’s operation, unless expressly allowed by Arduino or by applicable license agreements …

In response to concerns from some members of the maker community, including from open source hardware distributor and manufacturer Adafruit, Arduino posted a blog on Friday. Regarding the new reverse-engineering rule, Arduino’s blog said:

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Why synthetic emerald-green pigments degrade over time

Why synthetic emerald-green pigments degrade over time

fivenewscrypto    novembre 26, 2025   

The emergence of synthetic pigments in the 19th century had an immense impact on the art world, particularly the availability of emerald-green pigments, prized for their intense brilliance by such masters as Paul Cézanne, Edvard Munch, Vincent van Gogh, and Claude Monet. The downside was that these pigments often degraded over time, resulting in cracks and uneven surfaces and the formation of dark copper oxides—even the release of arsenic compounds.

Naturally, it’s a major concern for conservationists of such masterpieces. So it should be welcome news that European researchers have used synchrotron radiation and various other analytical tools to determine whether light and/or humidity are the culprits behind that degradation and how, specifically, it occurs, according to a paper published in the journal Science Advances.

Science has become a valuable tool for art conservationists, especially various X-ray imaging methods. For instance, in 2019, we reported on how many of the oil paintings at the Georgia O’Keeffe Museum in Santa Fe, New Mexico, had been developing tiny, pin-sized blisters, almost like acne, for decades. Chemists concluded that the blisters are actually metal carboxylate soaps, the result of a chemical reaction between metal ions in the lead and zinc pigments and fatty acids in the binding medium used in the paint. The soaps start to clump together to form the blisters and migrate through the paint film.

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It’s official: Boeing’s next flight of Starliner will be allowed to carry cargo only

It’s official: Boeing’s next flight of Starliner will be allowed to carry cargo only

fivenewscrypto    novembre 26, 2025   

The US space agency ended months of speculation about the next flight of Boeing’s Starliner spacecraft, confirming Monday that the vehicle will carry only cargo to the International Space Station.

NASA and Boeing are now targeting no earlier than April 2026 to fly the uncrewed Starliner-1 mission, the space agency said. Launching by next April will require completion of rigorous test, certification, and mission readiness activities, NASA added in a statement.

“NASA and Boeing are continuing to rigorously test the Starliner propulsion system in preparation for two potential flights next year,” said Steve Stich, manager of NASA’s Commercial Crew Program, in a statement.

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F1 in Las Vegas: This sport is a 200 mph soap opera

F1 in Las Vegas: This sport is a 200 mph soap opera

fivenewscrypto    novembre 25, 2025   

AT&T provided flights from Washington, DC, to Las Vegas and accommodation so Ars could attend the Las Vegas Grand Prix. Ars does not accept paid editorial content.

LAS VEGAS—Formula 1 held the third annual Las Vegas Grand Prix this past weekend in the Nevada city. The race is an outlier in so many ways, and a divisive one at that. Some love the bright lights that make it appear to be set in Mega-City One or F-Zero. Others resent the rampant commercialism of F1 at its most excessive. And this time, Ars was on the ground, making one of our periodic visits to the series. The race we saw was something of a damp squib, seemingly leaving McLaren’s Lando Norris in control of the championship.

At least that’s how it looked when I left the track on Saturday night. Within a few hours, Norris and his teammate (and one of his two title rivals) Oscar Piastri were both disqualified for having worn away too much of the “legality plank” underneath the car—more on that in a while.

I was a huge skeptic of the idea when the Las Vegas race was announced, but the first two events put on a good show. Year 3 was a little more dull, however. Credit: Clive Mason/Getty Images

Emblematic of the new F1

Unlike most Grands Prix, Liberty Media promotes this one itself. It spent half a billion dollars to get ready for the 2023 event, some of that on the pit lane and paddock complex, yet more on resurfacing the roads to the standards preferred by these thoroughbred racing cars. The track layout—which looks like a pig on its back—is typical of North American street circuits.

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