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I retested GPT-5's coding skills using OpenAI's guidance - and now I trust it even less

seamartini/iStock/Getty Images Plus Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways The same prompts in GPT-5 yield success, crashes, or errors. OpenAI's prompt optimizer helps, but introduces its own quirks. AI "unconsciously" adding details raises trust concerns. Do AI's get headaches? Because GPT-5 has certainly been giving me one. This article was going to be so easy. OpenAI came out with a list of best practices for GPT-5 coding. All I was going to do was t

Topics: ai case gpt test time

‘Foundation’ Star Brandon P. Bell on Sci-Fi Spycraft and the Power of Asimov

Foundation season three is closing in on its finale, but there’s still a trio of action-packed episodes to go. io9 got a chance to talk to Brandon P. Bell, who plays Captain Han Pritcher; he’s a new character this season but has a name Foundation book readers will immediately recognize. On the Apple TV+ show based on the Isaac Asimov stories, Pritcher is entwined in multiple storylines. He’s the Foundation’s top intelligence officer, at least until he has a major falling-out with his boss. But

What Is the Magnetic Constant, and Why Does It Matter?

This means these three values can’t be independent; if you know two of them, you can derive the third. How do physicists deal with this? We define the speed of light as exactly 299,792,458 meters per second. (How do we know it’s exact? Because we define a meter as the distance light travels in 1/299,792,458 of a second.) Then we measure the magnetic constant (μ 0 ) and use that value along with the speed of light to calculate the electric constant (ε 0 ). Maybe that seems like cheating, but to

Volunteer opportunities still open for TechCrunch Disrupt 2025

Volunteering at TechCrunch Disrupt 2025 isn’t just about scoring free admission (though that’s a pretty sweet perk). It’s your chance to get a behind-the-scenes look at how one of the world’s biggest startup conferences gets built — and to meet the people shaping the future of tech while you’re at it. Whether you want to launch your own startup, build your event chops, or get inspired by real traction stories, volunteering at Disrupt 2025 is your backstage pass to see how a world-class tech con

Silicon Valley is pouring millions into pro-AI PACs to sway midterms

In Brief Andreessen Horowitz and OpenAI President Greg Brockman are among the Silicon Valley veterans putting more than $100 million into a network of political-action committees (PACs) that will advocate against strict AI regulations in next year’s midterm elections, reports The Wall Street Journal. The new pro-AI super-PAC network dubbed “Leading the Future” aims to use campaign donations and digital ads to advocate for favorable AI regulation and oppose candidates that the group thinks will

The New Face of Data Engineering: No-Code, High Velocity, and AI-Driven

Data engineering is experiencing rapid transformation due to artificial intelligence’s (AI) modification of work processes and responsibilities. AI-assisted low- and no-code solutions dominate previously code-heavy processes, delivering streamlined development and reduced complexity. This transition challenges engineers to shift from writing pure extract, transform, and load (ETL) code to managing system design, data governance, compliance, and strategic AI tool integration. Transformation of C

Defending against malware persistence techniques with Wazuh

Malware persistence techniques enable attackers to maintain access to compromised endpoints despite system reboots, credential changes, or other disruptions. Common methods include altering configurations, injecting startup code, and hijacking legitimate processes. These approaches ensure the malware or attacker remains active, allowing malicious activities to continue without the need for re-exploitation. In this article, we will examine the nature of malware persistence techniques, their imp

Prediction-Encoded Pixels image format

Prediction-Encoded Pixels This format is specifically designed to be for low-color pixel art (<=16 colors works best, up to 256 colors is supported). It uses "Prediction by Partial Matching, Order-2" compression, which is able to compress packed-palette-indices smaller than GIF, PNG, and QOI, while sacrificing a bit of time. It's 2-10x slower than GIF/PNG/QOI (depending on the image), but often compresses the image 20-50% smaller than GIF/PNG (and multiple-times smaller than QOI). If you care

A lightweight TypeScript library for assertion-based runtime data validation

Lightweight, zero-dependency library for validating arbitrary runtime data in TypeScript. decode-kit provides assertion-based validation that refines your types in-place — no cloning, no transformations, and minimal runtime overhead. Installation npm install decode-kit Quick Start decode-kit validates your data and narrows its type in-place. Your original values remain unchanged - only their TypeScript types are refined. The validate function runs a runtime check and, on success, asserts the

Japan's Creepiest Station

However, if travelling northbound in the direction of Niigata, the station takes on a vastly different character. The northbound platform is a 15 minute walk away from the main station building. A majority of this walk consists of a 70m descent down almost 500 steps into the Shin-Shimizu tunnel. The descent is terrifying, with little vision of what awaits you at the end as you venture further and further into the depths. Water from the nearby rivers can also be heard trickling into the tunnel at

SpaceX’s latest Dragon mission will breathe more fire at the space station

SpaceX completed its 33rd cargo delivery to the International Space Station early Monday, when a Dragon supply ship glided to an automated docking with more than 5,000 pounds of scientific experiments and provisions for the lab's seven-person crew. The resupply flight is part of the normal rotation of cargo and crew missions that keep the space station operating. The Dragon spacecraft's cargo haul comprised packages of fresh food, including some 1,500 tortillas, and equipment for numerous resea

How the cavefish lost its eyes—again and again

Time and again, whenever a population was swept into a cave and survived long enough for natural selection to have its way, the eyes disappeared. “But it’s not that everything has been lost in cavefish,” says geneticist Jaya Krishnan of the Oklahoma Medical Research Foundation. “Many enhancements have also happened.” Though the demise of their eyes continues to fascinate biologists, in recent years, attention has shifted to other intriguing aspects of cavefish biology. It has become increasingl

Next set of VC judges locked in for Startup Battlefield 200 at TechCrunch Disrupt 2025

The Startup Battlefield 2025 judging panel is getting even stronger. Our first wave of VCs brought serious firepower, and now we’re adding more top investors who will grill founders, unpack the big questions, and help crown this year’s $100,000 champion at TechCrunch Disrupt, October 27–29 in San Francisco’s Moscone West. Like the legendary investors who’ve judged in years past, this next group brings the insight, experience, and instincts that can change a founder’s trajectory in just one Q&A.

The MasterClass Labor Day sale discounts subscriptions by 50 percent

MasterClass promises online learning with instructors who are the very best in their fields, and an annual subscription is currently 50 percent off across all tiers. Subscribers to MasterClass will have access to over 200 classes taught by iconic authors, chefs, athletes and leaders representing a diverse collection of skill sets and backgrounds. With a subscription, you could watch a class on writing taught by James Patterson, or learn cooking techniques from Thomas Keller. If you're trying to

The Size of Adobe Reader Installers Through the Years

The Size of Adobe Reader Installers Through The Years Latest update: 2025-08-25 11:30:02 At the time of writing, the most recent Adobe Reader 25.x.y.z 64-bit installer for Windows 11 weights 687,230,424 bytes. After installation, the program includes 'AI' (of course), an auto-updater, sprinkled ads for Acrobat online services everywhere, and 2 GUIs: 'new' and 'old'. For comparison, the size of SumatraPDF-3.5.2 installer is 8,246,744 bytes. It has no 'AI', no auto-updater (though it can check

A Small Change to Improve Browsers for Keyboard Navigation

We choose to use Firefox, not because it's easy but because it's hard. ~ jfk probably (This problem applies to Chrome too though) If you want to navigate websites with the keyboard you can make use of the ' search feature (aka "quick find for links") in Firefox. Just press ' and start typing. Any link with the anchor text you type will get highlighted. Once you press enter, firefox will navigate to the link under the highlighted anchor text. Too bad most websites nowadays don't use links for nav

Ewan McGregor Thinks ‘Obi-Wan’ Season 2 Is an Inevitability

Damien Leone teases Terrifier 4‘s take on the secret origins of Art the Clown. Cast and crew discuss football horrors in a new look at Him. Plus get a tense new look at a brutal clip from The Long Walk. Spoilers get! Terrifier 4 During a recent interview with Collider, director Damien Leone stated Terrifier 4 will reveal the secret origin of Art the Clown in a “Lynchian” manner. Once I wrote Part 2, I decided to really start telling the story. I wanted to tell it almost in a Lynchian way. I c

Most Air Purifiers Haven’t Been Tested on Humans. That’s a Problem

Portable air cleaners aimed at curbing indoor spread of infections are rarely tested for how well they protect people—and very few studies evaluate their potentially harmful effects. That’s the upshot of a detailed review of nearly 700 studies that we co-authored in the journal Annals of Internal Medicine. Many respiratory viruses, such as covid-19 and influenza, can spread through indoor air. Technologies such as HEPA filters, ultraviolet light, and special ventilation designs—collectively kno

Why most AI projects flop - and how your business can beat the odds

Elyse Betters Picaro / ZDNET Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways Only 5% of AI projects deliver. It comes down to the ability to customize. With partnerships in place, AI success odds double. Ask the right questions before deciding between building or buying. There's a tremendous gap between AI aspirations and actual successful projects -- this was shown in the recent MIT study that found only 5 percent of generative AI projects have delivered measur

Why I'm Now Running Enterprise AI on My Laptop (Without Internet)

Beyond the Cloud: Why I’m Now Running Enterprise AI on My Laptop (Without Internet) Klaudi 6 min read · 1 hour ago 1 hour ago -- Listen Share For years, I’ve been skeptical of the AI revolution. Not because I don’t believe in its potential, but because the how always felt broken. The promise of “AI for everyone” came with a hidden cost: my data, my privacy, and my wallet. Every time I used a cloud based AI service, I’d ask myself: Where is my data going? Who owns it? How much will this cost me

The great medieval water myth (2013)

About Me chezjim Jim Chevallier is a food historian with a checkered past and eclectic interests. His most recent book is "Feasting with the Franks; the First French Medieval Food'; this follows a history of French bread - "Before the Baguette: The History of French Bread" - and a small work on the women who delivered bread in Paris and other cities for over a century: "They Came Bearing Bread; the Hard Lives of the Porteuses de Pain'. CHOICE magazine named his "A History of the Food of Paris: F

Google will soon make it easier to find out what’s wrong with your Pixel (APK teardown)

Rita El Khoury / Android Authority TL;DR Google is testing new diagnostics options for Pixel devices. This new option combines discrete options into a single dashboard to test if there’s anything wrong with your phone. It also introduces a new AI-powered search option to inspect likely problems with your Pixel device. The on-device diagnostics options on Google’s Pixel phones are in for a significant overhaul. We have spotted Google testing a new menu option that combines various diagnostic

Quick Share for iPhones is still in the works, and here’s proof (APK teardown)

Ryan Haines / Android Authority TL;DR A teardown of the latest Google Play Services app has revealed evidence that Google is still working on Quick Share for iPhones. We were also able to view a screen confirming that you need to sign in to share with iPhones. This comes almost a year after we first learned Google might be working on Quick Share for iOS and MacOS. We first heard late last year that Google could be working on Quick Share for iOS and MacOS. This would be a welcome addition, al

We battery-tested top tablets from Apple, Samsung, and others in our lab: These were the winners

When looking to buy a tablet, there are a few factors to keep in mind, such as what you'll be using the tablet for (entertainment, drawing, work, etc.), your price point, display size, operating system, and more. At ZDNET, we considered all of these factors when choosing the best tablets you can buy, but we were able to test one important factor that can truly make or break your tablet experience: battery life. Also: The best cheap tablets We ran nine tablets through the gauntlet in our lab in

Show HN: CasCache – multi-generational cache with optimistic concurrency control

cascache Provider-agnostic CAS like (Compare-And-Set or generation-guarded conditional set) cache with pluggable codecs and a pluggable generation store. Safe single-key reads (no stale values), optional bulk caching with read-side validation, and an opt‑in distributed mode for multi-replica deployments. Contents Overview CAS safety: Writers snapshot a per-key generation before the DB read. Cache writes commit only if the generation is unchanged. Writers snapshot a per-key before the DB rea

SmallJS: Smalltalk-80 that compiles to JavaScript

SmallJS is a free and open source implementation of the elegant and powerful Smalltalk-80 (ST) language. It compiles to JavaScript (JS) that runs in modern browsers or in Node.js. SmallJS is file based, not image based, so you can develop in your favorite IDE. The default setup is for Visual Studio Code, with ST syntax coloring and step debugging! You code separately from the SmallJS base libraries (image) and only the parts you use are imported automatically when running your app. SmallJS is

The Mysterious Shortwave Radio Station Stoking US-Russia Nuclear Fears

Shortly after US president Donald Trump hung up a call with Russia’s Vladimir Putin this spring, an obscure shortwave radio channel, broadcasting from a military base somewhere in Russia, sprang to life. Through a fog of static, at 4625 kHz on the shortwave dial, a man’s voice spoke in monotone: “Nikolai, Zhenya, Tatiana, Ivan.” He repeats the message—spelled out in the Russian phonetic alphabet—followed by a series of numbers and letters. The whole message reads: “NZhTI 01263 BOLTANKA 4430 952

Mac mini vs Mac Studio: For under $900 right now, which one should you pick up?

Apple has three standalone Mac desktops – the Mac mini, Mac Studio, and Mac Pro. Mac Pro isn’t exactly worth talking about, so we’ll focus on the former two. While these computers are typically priced quite far apart ($599 vs $1999), the Mac Studio is a bit older – and Amazon has an incredible deal on the one generation old M2 Max model. We’ll be comparing the two, and showing you which computer is the best bang for your buck at this price point. Right now, Amazon has the M2 Max Mac Studio on

Topics: m4 mac max mini studio

Y Combinator files brief supporting Epic Games, says store fees stifle startups

Startup accelerator and venture capital firm Y Combinator (YC) today filed an amicus brief supporting Epic Games in Epic's continued legal fight with Apple. Y Combinator says that Apple's "anti-steering restraints" have long inhibited the growth and development of technology companies that monetize goods and services through apps. The company calls on the court to deny Apple's appeal and uphold the order that required Apple to change its App Store linking rules in the United States. Back in

A bubble that knows it's a bubble

The four words that precede every crash: “This time is different.” Except this time, the person warning about a bubble is Sam Altman, the CEO most responsible for creating it. When OpenAI’s chief executive warned last week that investors were “overexcited” about AI, markets reacted immediately. Nvidia fell 3.5%, Palantir dropped nearly 10%, and the selloff spread globally. The warning came amid a cascade of seemingly supporting data. That same week, MIT researchers published findings that 95%