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Tau² benchmark: How a prompt rewrite boosted GPT-5-mini by 22%

news.ycombinator.com Przemysław Hejman 2025-09-21 22:03:24

Now on the front page of Hacker News — join the discussion. In a recent post, we introduced the Tau² benchmark, a framework for benchmaring LLMs. Today we’re sharing a surprising discovery we made while using it: a simple prompt rewrite boosted a small model’s success rate by over 20%. This post is a deep-dive on how we found and fixed this performance bottleneck by making subtle changes to agent policies. Benchmarking LLMs with Tau² On the recent OpenAI Summer Update, we have seen that GPT-5

Topics: agent ai benchmark gpt mini

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Tau² Benchmark: How a Prompt Rewrite Boosted GPT-5-Mini by 22%

news.ycombinator.com Przemysław Hejman 2025-09-22 18:03:24

In a recent post, we introduced the Tau² benchmark, a framework for benchmaring LLMs. Today we’re sharing a surprising discovery we made while using it: a simple prompt rewrite boosted a small model’s success rate by over 20%. This post is a deep-dive on how we found and fixed this performance bottleneck by making subtle changes to agent policies. Benchmarking LLMs with Tau² On the recent OpenAI Summer Update, we have seen that GPT-5 model has made significant strides in agentic tasks. To vali

Topics: agent ai benchmark gpt mini

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Farsighted? These Eye Drops Could Eventually Replace Your Reading Glasses

gizmodo.com Margherita Bassi 2025-09-24 18:50:18

If you haven’t yet experienced it yourself, you’ve certainly seen older family members start to hold smartphones and restaurant menus up to their noses, squinting at the small text. That’s because as we age, we all develop presbyopia, or age-related farsightedness—trouble focusing on close objects or text. That’s where surgery or reading glasses usually come in, but new research suggests there could be another option. Researchers have demonstrated that after taking special eye drops two or thre

Topics: benozzi eye patients presbyopia study

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Crowdstrike and Meta just made evaluating AI security tools easier

zdnet.com Webb Wright 2025-09-26 18:29:27

fotograzia/Moment via Getty Images Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways AI is both a cybersecurity threat and a solution. Benchmarks will test LLMs for real-world cybersecurity tasks. The suite could help developers build better models. Overwhelmed with cybersecurity tool options? A new set of benchmark tests aims to help you evaluate them and find the right ones for you. Also: Navigating AI-powered cyber threats in 2025: 4 expert security tips for b

Topics: ai benchmarks cybersecurity models powered

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Benioff says he's 'inspired' by Palantir, but takes another jab at its prices

cnbc.com Jordan Novet 2025-09-28 02:01:35

Marc Benioff is keeping an eye on Palantir . The co-founder and CEO of sales and customer service management software company Salesforce is well aware that investors are betting big on Palantir, which offers data management software to businesses and government agencies. "Oh my gosh. I am so inspired by that company," Benioff told CNBC's Morgan Brennan in a Tuesday interview at Goldman Sachs ' Communacopia+Technology conference in San Francisco. "I mean, not just because they have 100 times, y

Topics: 10 benioff palantir revenue salesforce

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Why do browsers throttle JavaScript timers?

news.ycombinator.com Unknown 2025-09-28 13:35:08

Posted August 31, 2025 by Nolan Lawson in performance, Web. Tagged: timers. 9 Comments Even if you’ve been doing JavaScript for a while, you might be surprised to learn that setTimeout(0) is not really setTimeout(0) . Instead, it could run 4 milliseconds later: const start = performance.now() setTimeout(() => { // Likely 4ms console.log(performance.now() - start) }, 0) Nearly a decade ago when I was on the Microsoft Edge team, it was explained to me that browsers did this to avoid “abuse.” I.

Topics: benchmark browser postmessage settimeout web

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Will the iPhone Air bend? Here’s what Apple says

9to5mac.com Ryan Christoffel 2025-09-30 22:18:05

Apple’s ultra-thin iPhone Air appears to be earning a lot of buzz, but for some users there’s a very important question still unanswered: will it bend? Here’s what Apple executives said in a new interview. Apple execs invite interviewers to try bending the iPhone Air Following Apple’s iPhone 17 and iPhone Air unveiling, Tom’s Guide and Tech Radar teamed up for a new interview with Apple’s John Ternus and Greg Joswiak. That interview included a very important question: will the iPhone Air bend

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Clojure's Solutions to the Expression Problem

news.ycombinator.com Chris Houser 2025-09-29 16:31:50

At times, to evolve your product, you need to rebuild it from scratch. The article provides the story behind the rewrite of InfluxDB from scratch using a different programming language - Rust - and stack - Apache Flight, Data Fusion, Apache Arrow and Parquet (FDAP). It emphasises the benefits, as well as the mechanics behind its operation and the different versions of the product.

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Evernote and WeTransfer owner Bending Spoons is set to buy Vimeo for $1.38 billion

engadget.com Unknown 2025-10-03 18:56:02

Vimeo is set to get a new owner. Bending Spoons — the parent of Evernote, WeTransfer, Meetup and fellow video streaming platform Brightcove — plans to take the company into private ownership in an all-cash, $1.38 billion deal. Stockholders will receive $7.85 per share, quite a bit more than the $4.82 Vimeo closed at on Tuesday (the price jumped significantly after the announcement, of course). Vimeo's directors unanimously approved the takeover. The acquisition is expected to close by the end o

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Vimeo to be acquired by Bending Spoons for $1.38 billion

theverge.com Emma Roth 2025-10-03 18:22:04

is a news writer who covers the streaming wars, consumer tech, crypto, social media, and much more. Previously, she was a writer and editor at MUO. Posts from this author will be added to your daily email digest and your homepage feed. Vimeo is getting bought up by Bending Spoons, a European software company that has amassed a growing portfolio of businesses, including Evernote, WeTransfer, and Meetup. Bending Spoons will pay $1.38 billion to acquire the video hosting platform, and it expects

Topics: bending ceo company spoons vimeo

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Vimeo to be acquired by Bending Spoons in $1.38B all-cash deal

techcrunch.com Aisha Malik 2025-10-03 22:09:49

Video platform Vimeo announced on Wednesday that it has agreed to be acquired by Bending Spoons, one of Europe’s largest mobile app developers, in an all-cash deal valued at approximately $1.38 billion. The deal is expected to close in the fourth quarter of 2025, subject to customary closing conditions and regulatory approvals. Vimeo will be delisted from exchanges once the deal closes. The announcement comes as Bending Spoons was interested in a potential takeover of Vimeo as far back as Marc

Topics: app bending deal spoons vimeo

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Ben-Hur on a Computer Screen

news.ycombinator.com Unknown 2025-10-03 20:26:45

Ben-Hur on a computer screen 05 Set, 2025 Ben-Hur, 1925 I kept looking, completely mesmerized. The teacher hit the key again, and a scene from a movie played. It was a chariot race from Ben-Hur. On a computer screen. It felt wrong. It felt like magic. The clip was less than five seconds. "One day, everyone will watch movies on computers", he said. In the 1990s, in Brazil, computers were suddenly all the rage. Fernando Henrique Cardoso's "Plano Real" had managed to do what everyone thought i

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Elon Musk's New Optimus Robot Demo Is So Painful It Will Make You Wince

futurism.com Unknown 2025-10-08 20:34:37

Hot off of proudly announcing that he had replaced 4,000 people with AI at his company, Salesforce CEO Marc Benioff posted a video of Tesla's humanoid robot, Optimus, calling it a "productivity game-changer." However, going by the 52-second clip, the carmaker has a long way to go until it can successfully have AI-powered bipedal robots replace human jobs. Is this really what will make up a whopping 80 percent of Tesla's value, as Tesla CEO Elon Musk promised in a tweet earlier this week? In an

Topics: benioff company optimus robot tesla

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Join ZDNET's livestreamed 'Techtember Preview' at 2 p.m. ET today

zdnet.com Zdnet Editors 2025-10-10 06:34:00

What is ChatGPT and how does it benefit you?

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Elon Musk's New Robot Demo Is Astonishingly Bad

futurism.com Unknown 2025-10-11 13:34:37

Hot off of proudly announcing that he had replaced 4,000 people with AI at his company, Salesforce CEO Marc Benioff posted a video of Tesla's humanoid robot, Optimus, calling it a "productivity game-changer." However, going by the 52-second clip, the carmaker has a long way to go until it can successfully have AI-powered bipedal robots replace human jobs. Is this really what will make up a whopping 80 percent of Tesla's value, as Tesla CEO Elon Musk promised in a tweet earlier this week? In an

Topics: benioff company optimus robot tesla

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5 Things to Know About Why Salesforce Stock is Cratering

gizmodo.com Ece Yildirim 2025-10-12 18:08:57

Salesforce stock was down almost 8% this morning after a disappointing earnings report last night. The company shared third quarter revenue forecast that came in below expectations and investors worry that has to do with AI monetization problems. The company is all-in on AI, but Wall Street’s patience for the ROI countdown is running thin it seems. At least it’s running thin enough that even though second-quarter revenue came in pretty good and the company shared a $20 billion increase to its

Topics: 000 ai benioff company salesforce

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Beyond technology? How Bentley is reacting to the 21st century.

arstechnica.com Unknown 2025-10-15 10:36:40

Bentley provided flights from New York to San Francisco and accommodation so Ars could attend Monterey Car Week. Ars does not accept paid editorial content. If the Tesla Model S prodded the legacy car companies to get on top of battery production and introduce iPad-like screens in cars, Chinese car companies are bringing the heat for what's left of the 2020s in all segments. Much of the media coverage has rightly been on how this trend will affect mass-market vehicles. But what does it mean at

Topics: bentley brands car cars chinese

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Salesforce CEO confirms 4,000 layoffs ‘because I need less heads' with AI

cnbc.com Scott Budman 2025-10-15 21:59:01

Salesforce CEO Marc Benioff participates in an interview at the World Economic Forum in Davos, Switzerland, on Jan. 22, 2025. Salesforce has cut 4,000 of its customer support roles, CEO Marc Benioff recently said while discussing how artificial intelligence has helped reduce the company headcount. Benioff revealed the layoffs during an interview published Friday on The Logan Bartlett Show podcast. "I've reduced it from 9,000 heads to about 5,000, because I need less heads," Benioff said while

Topics: ai benioff ruettimann said salesforce

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No more Prime shipping perks outside your family (Updated: Amazon statement)

androidauthority.com Unknown 2025-10-16 00:59:23

Update: September 2, 2025 (10:56 PM ET): An Amazon spokesperson has contacted Android Authority with an official statement on the matter. Here’s what they had to say: The Invitee program, which enabled sharing of the Prime shipping benefit only, is being phased out, and Prime members can instead share a broad range of Prime benefits with Amazon Family, including: fast, free delivery; access to exclusive deals and shopping events like Prime Day; movies, series, and live sports with Prime Video;

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Salesforce is having a bad year. This is where investors want to see growth

cnbc.com Jordan Novet 2025-10-17 06:20:18

Marc Benioff, co-founder and CEO of Salesforce, attends the 50th World Economic Forum in Davos, Switzerland, on Jan. 21, 2020. There was a moment, during the pandemic-fueled growth days of 2020, when Salesforce surpassed Oracle by market cap. Marc Benioff had finally toppled his protege, Larry Ellison. That moment is long gone. Salesforce's stock price has dropped 25% this year, the worst performance in large-cap tech and the second-steepest decline in the Dow, beating only UnitedHealth . Mea

Topics: benioff billion company customer salesforce

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Steve Ballmer Interview

news.ycombinator.com Unknown 2025-10-18 14:51:27

Ben: David, Steve gave us the signed Clippers jersey with the name Acquired on it. There’s only one jersey. What are we going to do about this? David: Should we rock paper scissors for it? You know what? You keep it. There’s no Seattle basketball team. Keep it there up north. Ben: All right. It’ll go in the Acquired museum north. David: Great. Ben: Perfect. All right, let’s do it. David: Let’s do it. Ben: Welcome to episode one of the Summer 2025 season of Acquired, the podcast about great

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The Steve Ballmer Interview

news.ycombinator.com Unknown 2025-10-19 05:51:27

Ben: David, Steve gave us the signed Clippers jersey with the name Acquired on it. There’s only one jersey. What are we going to do about this? David: Should we rock paper scissors for it? You know what? You keep it. There’s no Seattle basketball team. Keep it there up north. Ben: All right. It’ll go in the Acquired museum north. David: Great. Ben: Perfect. All right, let’s do it. David: Let’s do it. Ben: Welcome to episode one of the Summer 2025 season of Acquired, the podcast about great

Topics: ben david steve think windows

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Mushroom Gummies: Expert Advice on Side Effects and Benefits

cnet.com See Full Bio 2025-10-20 00:45:00

Mushrooms have been used as medicine for many years, but nowadays, you don't have to reap these wellness rewards by cooking them. The potential health benefits of functional varieties have even led people to add them to their morning cup of joe. But if you'd like to maintain the sanctity of your coffee, you can even buy them in the form of mushroom gummies. However, before you buy a bottle of mushroom gummies, you should be fully aware of the potential benefits and side effects. We consulted ex

Topics: benefits gummies gummy mushroom mushrooms

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I took this MagSafe battery pack on vacation, but now it's an everyday carry

zdnet.com Kayla Solino 2025-10-21 18:05:00

Benks ArmorGo 10K Qi2 Battery Pack ZDNET's key takeaways The Benks ArmorGo 10k battery pack is a Qi2 MagSafe charging option for $63. It features a 10K capacity battery, an Aramid fiber build, and comes in 2 colors. It's pretty chunky. View now at Benks I've tested dozens of MagSafe battery packs, and my biggest pet peeve is when they're too big. No one wants to be hoisting a brick to the back of their phone all day, but once you begin get to the 10,000 mAh capacity options, you might as well

Topics: battery benks magsafe pack qi2

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Powerful GPUs or Fast Interconnects: Analyzing Relational Workloads

news.ycombinator.com Unknown 2025-10-19 06:48:51

Authors: Marko Kabić, Bowen Wu, Jonas Dann, Gustavo Alonso Abstract In this study we explore the impact of different combinations of GPU models (RTX3090, A100, H100, GraceHoppers - GH200) and interconnects (PCIe 3.0, PCIe 4.0, PCIe 5.0, and NVLink 4.0) on various relational data analytics workloads (TPC-H, H2O-G, ClickBench). We present MaxBench, a comprehensive framework designed for benchmarking, profiling, and modeling these workloads on GPUs. Beyond delivering detailed performance metrics,

Topics: analytics gpu maxbench pcie workloads

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Marc Benioff Can’t Get Enough of the AI Hype—Unless You Say ‘AGI’

gizmodo.com Aj Dellinger 2025-10-23 06:50:04

Marc Benioff, a guy who has poured money into artificial intelligence investments and claims that AI tools are doing half of the work at Salesforce, isn’t so sure about all the hype around this whole sector all of a sudden. During an appearance on the “20VC” podcast, as spotted by Business Insider, Benioff poured water on the concept of “artificial general intelligence,” calling the obsession around the industry’s white whale “hypnosis.” During the conversation, podcast host Harry Stebbings—him

Topics: agi ai benioff isn just

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The Next Season of ‘Futurama’ Teases Slap-Happy Antics and a Giant Robot

gizmodo.com Cheryl Eddy 2025-11-04 00:15:30

The world may be reaching all-time levels of weirdness, but thank the Robot Devil, Futurama is still making new episodes. The oft-canceled and oft-revived series has found firm footing at Hulu and is trying a new trick with season 13: a binge release. All 10 episodes will be available at once come September 15, with a tantalizing glimpse at what to expect in a new rapid-fire trailer. The official season 13 summary, as expected, tells us nothing: “Bender is rampaging out of control! A volcano is

Topics: 13 bender futurama new season

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Worried about the Pixel 10 Pro XL benchmark controversy? Here’s why you shouldn’t be

androidauthority.com Unknown 2025-11-08 09:00:25

Well, friends, the day has finally come: Google Pixel day. Today is the day that Google will officially reveal the Pixel 10 series after months of leaks, and it’s a day we should all be excited about. Instead, a lot of Pixel fans are upset and complaining. Those complaints stem from a last-minute Pixel 10 Pro XL benchmark leak, supposedly showing just how fast Google’s new Tensor G5 chip is. Assuming the benchmarks are legit, the good news is that the Tensor G5 is faster than the Tensor G4. How

Topics: benchmarks g5 performance pixel tensor

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These 12 Foods Turned Out to Be Way Healthier Than I Thought

cnet.com See Full Bio 2025-11-14 09:00:00

It's easy to believe that being healthy means buying superfoods, all organic produce, expensive supplements and pricey powders. After all, this is what most of social media conveys. But that's not true. In fact, you probably have a lot of healthy, nutrient-dense foods sitting in your refrigerator and pantry right now. As long as you eat a balanced diet filled with a variety of foods like fruits, veggies, grains and proteins, you're probably getting all the vitamins and minerals your body needs.

Topics: benefits health heart help like

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OneSignal (YC S11) Is Hiring Engineers

news.ycombinator.com Unknown 2025-11-16 18:01:04

We value workplace flexibility At OneSignal, we understand that flexibility is key when it comes to having productive and happy teammates. We know that different roles/teams/people have different needs – some benefit more from being fully remote while others benefit more from having a hybrid setup where they have in office collaboration days 2-3 days a week. So we support both! Our headquarters are based in San Mateo, CA and we also offer shared workspace options for our teams to work together

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Latest Tech News

Tau² benchmark: How a prompt rewrite boosted GPT-5-mini by 22%

Tau² Benchmark: How a Prompt Rewrite Boosted GPT-5-Mini by 22%

Farsighted? These Eye Drops Could Eventually Replace Your Reading Glasses

Crowdstrike and Meta just made evaluating AI security tools easier

Benioff says he's 'inspired' by Palantir, but takes another jab at its prices

Why do browsers throttle JavaScript timers?

Will the iPhone Air bend? Here’s what Apple says

Clojure's Solutions to the Expression Problem

Evernote and WeTransfer owner Bending Spoons is set to buy Vimeo for $1.38 billion

Vimeo to be acquired by Bending Spoons for $1.38 billion

Vimeo to be acquired by Bending Spoons in $1.38B all-cash deal

Ben-Hur on a Computer Screen

Elon Musk's New Optimus Robot Demo Is So Painful It Will Make You Wince

Join ZDNET's livestreamed 'Techtember Preview' at 2 p.m. ET today

Elon Musk's New Robot Demo Is Astonishingly Bad

5 Things to Know About Why Salesforce Stock is Cratering

Beyond technology? How Bentley is reacting to the 21st century.

Salesforce CEO confirms 4,000 layoffs ‘because I need less heads' with AI

No more Prime shipping perks outside your family (Updated: Amazon statement)

Salesforce is having a bad year. This is where investors want to see growth

Steve Ballmer Interview

The Steve Ballmer Interview

Mushroom Gummies: Expert Advice on Side Effects and Benefits

I took this MagSafe battery pack on vacation, but now it's an everyday carry

Powerful GPUs or Fast Interconnects: Analyzing Relational Workloads

Marc Benioff Can’t Get Enough of the AI Hype—Unless You Say ‘AGI’

The Next Season of ‘Futurama’ Teases Slap-Happy Antics and a Giant Robot

Worried about the Pixel 10 Pro XL benchmark controversy? Here’s why you shouldn’t be

These 12 Foods Turned Out to Be Way Healthier Than I Thought

OneSignal (YC S11) Is Hiring Engineers

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