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How people actually use ChatGPT vs Claude - and what the differences tell us

Elyse Betters Picaro / ZDNET Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways Most ChatGPT use is non-work, focused on writing tasks. Claude is used more for automation, especially coding. AI adoption is uneven, with wealthier regions benefiting first. Two of the biggest AI companies have revealed how people use their models. Also: The best AI chatbots of 2025 OpenAI released a research paper analyzing millions of ChatGPT conversations, while Anthropic publishe

OpenAI upgrades Codex with a new version of GPT-5

OpenAI announced Monday that it’s releasing a new version of GPT-5 to its AI coding agent, Codex. The company says its new model, called GPT-5-Codex, spends its “thinking” time more dynamically than previous models, and could spend anywhere from a few seconds to seven hours on a coding task. As a result, it performs better on agentic coding benchmarks. The new model is now rolling out in Codex products — which can be accessed via a terminal, IDE, GitHub, or ChatGPT — to all ChatGPT Plus, Pro, B

I built a business plan with ChatGPT and it turned into a cautionary tale

Andrii Yalanskyi/iStock/Getty Images Plus Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways ChatGPT makes errors in long-form chats with many variables. Personal productivity isn't as high as it could be because of this. Unless you have massive infrastructure, check AI's work. By now, everyone knows that generative AI can be flaky. If you're using it to edit your novel or to create an image, the AI might add elements that are inconsistent with your narrative or lo

Why is Sam Altman losing sleep? OpenAI CEO addresses controversies in sweeping interview

Sam Altman, CEO of OpenAI, and Lisa Su, CEO of Advanced Micro Devices, testify during the Senate Commerce, Science and Transportation Committee hearing titled "Winning the AI Race: Strengthening U.S. Capabilities in Computing and Innovation," in Hart building on Thursday, May 8, 2025. Tom Williams | CQ-Roll Call, Inc. | Getty Images In a sweeping interview last week, OpenAI CEO Sam Altman addressed a plethora of moral and ethical questions regarding his company and the popular ChatGPT AI model.

ChatGPT Goes Completely Haywire If You Ask It to Show You a Seahorse Emoji

There is no seahorse emoji. The Unicode Consortium, which oversees the standardized pictograms that can be transmitted as part of text communications, has yet to add the adorable sea critter to its official emoji dictionary. Frail human minds have sometimes been surprised to learn that fact, in a perfect example of the Mandela Effect, in which people become convinced that they remember something that isn't actually real — like that South African anti-apartheid leader Nelson Mandela died in pris

I used this ChatGPT trick to look for coupon codes - and saved 25% on my dinner tonight

Elyse Betters Picaro / ZDNET Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways Free ChatGPT can surface working coupon codes, but it's hit or miss. Agent on ChatGPT Plus might improve your odds of finding valid deals. Coupon or promo codes can lead to easy savings online. It's Friday afternoon, and I'm wrapping up work. I've got my daughter's 4-year checkup with shots later, which means one thing: pizza night. That should put a smile on her face after our appointm

Claude’s memory architecture is the opposite of ChatGPT’s

Claude Memory: A Different Philosophy How Claude memory works, how it differs from ChatGPT, and what these approaches reveal. Earlier this week, I dissected ChatGPT's memory system. Since then, I've been doing the same for Claude and realized something remarkable: these two leading AI assistants have built completely opposite memory systems. In this post, I'll start by breaking down exactly how Claude's memory works—what it stores and how it retrieves information. Then we'll get to the intere

OpenAI Brings Back Standard Voice Mode After Revolt

If it ain't broke, don't fix it -- or maybe even upgrade it. OpenAI has decided, for now, to keep Standard Voice Mode available for ChatGPT customers after some hard backlash against its replacement, Advanced Voice Mode. As OpenAI VP and ChatGPT boss Nick Turley posted on X and also on the Open AI website: "We've heard feedback that Standard Voice is special to many, and we want to get this transition right." He added: "Standard Voice will stay available while we address some of your feedback i

How the 2025 Apple Watch models compare to previous versions

is an editor covering deals and gaming hardware that he thinks you’ll like. He joined in 2018, and after a stint at Polygon, he rejoined The Verge in May 2025. Apple announced the new Apple Watch Series 11, SE 3, and Ultra 3 smartwatches during its annual iPhone hardware event on Tuesday. The 2025 models are somewhat iterative in terms of their designs. However, there are plenty of new features present in each that could make either one a worthy upgrade over previous generations, depending on h

GPT-5 Is Making Huge Factual Errors, Users Say

It's been just over a month since OpenAI dropped its long-awaited GPT-5 large language model (LLM) — and it hasn't stopped spewing an astonishing amount of strange falsehoods since then. From the AI experts at the Discovery Institute's Walter Bradley Center for Artificial Intelligence and irked Redditors on r/ChatGPTPro, to even OpenAI CEO Sam Altman himself, there's plenty of evidence to suggest that OpenAI's claim that GPT-5 boasts "PhD-level intelligence" comes with some serious asterisks.

The Evolution of Shaders

Nvidia launched the first GPU in 1999 with the GeForce 256, pioneering hardware T&L. In 2001, the GeForce 3 introduced programmable shaders, marking the shader era. Over 24 years, GPUs advanced massively, from 57 million transistors in NV20 to 92 billion in Blackwell (B100). Shader counts exploded—from 16 in 2007 to over 21,000 in 2025. Unified shaders appeared in 2007, and AI-focused Tensor Cores began in 2017. Despite huge performance gains, GPU prices rose modestly: a high-end card cost $800

New 3D mapping tech goes way beyond GPS to let us see the earth in ways never before possible

ICEYE Move over, GPS. A more advanced mapping solution is going to change the way humans can see, anticipate, and navigate the world. A new initiative called Project Orbion is creating a digital twin of earth by bringing together various technologies and companies in a collaboration that is promising to deliver a next-gen 3D mapping solution that will allow humans to see into places and in ways that we've never seen before -- especially in some of the most difficult situations and environments

Data Shows That AI Use Is Now Declining at Large Companies

Artificial intelligence might be booming on paper, but in the real world, there are signs of a major slowdown. In their latest biweekly survey of AI adoption, the US Census Bureau found evidence of an obvious drop-off in corporate AI use — the largest since the survey began in November of 2023. The survey, which compiles data from over 1.2 million firms throughout the US, shows usage of AI tools among companies with over 250 employees dropping from nearly 14 percent in mid-June to under 12 per

The race to build a distributed GPU runtime

For a decade, GPUs have delivered breathtaking data processing speedups. However, data is growing far beyond the capacity of a single GPU server. When your work drifts beyond GPU local memory or VRAM (e.g., HBM and GDDR), hidden costs of inefficiencies show up: spilling to host, shuffling over networks, and idling accelerators. Before jumping straight into the latest distributed computing effort underway at NVIDIA and AMD, let’s quickly level set on what distributed computing is, how it works, a

Intel Arc Pro B50 GPU Launched at $349 for Compact Workstations

Intel has officially expanded its professional GPU portfolio with the launch of the Arc Pro B50, designed specifically for small-form-factor workstations. The card is based on the Battlemage BMG-G21 GPU, configured with 16 Xe2 cores. It comes paired with 16 GB of GDDR6 VRAM clocked at 14 Gbps on a 128-bit memory bus, producing 224 GB/s of effective bandwidth. This configuration ensures that the GPU cores are properly fed while maintaining a low overall power draw. Intel has kept the total board

Godfather of AI Says His Girlfriend Broke Up With Him Using ChatGPT

Geoffrey Hinton, long considered a "godfather of AI" and who won the Nobel Prize in Physics last year, has a complicated relationship with the tech he pioneered at Google many years ago. He's long argued that AI poses an existential risk to humanity, and signed a letter earlier this year calling on OpenAI not to betray its non-profit roots. Even in his own personal life, it sounds like Hinton can't escape the tech. In an interview with the Financial Times, the 77-year-old revealed that his ex-

How to Spot (and Fix) 5 Common Performance Bottlenecks in Pandas Workflows

Slow data loads, memory-intensive joins, and long-running operations—these are problems every Python practitioner has faced. They waste valuable time and make iterating on your ideas harder than it should be. This post walks through five common pandas bottlenecks, how to recognize them, and some workarounds you can try on CPU with a few tweaks to your code—plus a GPU-powered drop-in accelerator, cudf.pandas, that delivers order-of-magnitude speedups with no code changes. Don’t have a GPU on yo

Topics: cudf df gpu memory pandas

OpenAI Wants You to Get a Certificate in ChatGPT and Find Your Next Job

It's not quite getting a college degree in ChatGPT, but it's close. OpenAI said this week it is launching an AI-powered jobs platform and a new certification program offered through its OpenAI Academy. The OpenAI Jobs Platform, expected to launch in 2026, will use AI to connect candidates with employers. The company says the system is designed to better align worker skills with business needs, potentially putting it in direct competition with Microsoft-owned LinkedIn. Alongside the hiring plat

ChatGPT’s new branching feature is a good reminder that AI chatbots aren’t people

On Thursday, OpenAI announced that ChatGPT users can now branch conversations into multiple parallel threads, serving as a useful reminder that AI chatbots aren't people with fixed viewpoints but rather malleable tools you can rewind and redirect. The company released the feature for all logged-in web users following years of user requests for the capability. The feature works by letting users hover over any message in a ChatGPT conversation, click "More actions," and select "Branch in new chat

Rasterizer: A GPU-accelerated 2D vector graphics engine in ~4k LOC

Rasterizer Inspired by my love of Adobe Flash, I started to work on a GPU-accelerated 2D vector graphics engine for the original iPhone, and then the Mac. Three iterations, and many years later, I have finally released Rasterizer . It is up to 60x faster than the CPU, making it ideal for vector animated UI (press the T key in the demo app to see an example). The 10-year gestation was the result of endlessly iterating over the core problem of efficiently turning vector paths into reference-qual

Topics: app gpu objects path use

Free ChatGPT users just got a powerful Project upgrade to better organize their chats

OpenAI Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways ChatGPT Free can now access Projects. Allows users to stay more organized, serving as a hub for content. Updates also include larger file uploads, memory controls, and more. Since its popularity exploded, ChatGPT has undergone many upgrades, including a sleek UI redesign. However, one terribly pesky thing that has remained the same for free users is how chats are organized, automatically populating the lef

Use free ChatGPT? You just got a powerful projects upgrade once exclusive to paid users

OpenAI Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways ChatGPT Free can now access Projects. Allows users to stay more organized, serving as a hub for content. Updates also include larger file uploads, memory controls, more. Since its popularity exploded, ChatGPT has undergone many upgrades, including a sleek UI redesign. However, one terribly pesky thing that has remained the same for free users is how chats are organized, automatically populating the left-ha

The fastest growing AI chatbot lately? It's not ChatGPT or Gemini

Matthias Balk/picture alliance via Getty Images Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways Copilot has been the fastest-growing AI chatbot in recent months. Use of Google Gemini is also surging. ChatGPT still enjoys the greatest number of users. Do you use Microsoft Copilot, Google Gemini, or ChatGPT on your PC or mobile device? If so, you're in good company. The number of people who turn to these three AI-powered chatbots grew from March to June this year,

Copilot, Gemini, and ChatGPT use surge, but one AI tool is outshining the rest

Microsoft / Elyse Betters Picaro / ZDNET Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways Copilot has been the fastest-growing AI chatbot in recent months. Use of Google Gemini is also surging. ChatGPT still enjoys the greatest number of users. Do you use Microsoft Copilot, Google Gemini, or ChatGPT on your PC or mobile device? If so, you're in good company. The number of people who turn to these three AI-powered chatbots grew from March to June this year, acco

Patients Furious at Therapists Secretly Using AI

With artificial intelligence integrating — or infiltrating — into every corner of our lives, some less-than-ethical mental health professionals have begun using it in secret, causing major trust issues for the vulnerable clients who pay them for their sensitivity and confidentiality. As MIT Technology Review reports, therapists have used OpenAI's ChatGPT and other large language models (LLMs) for everything from email and message responses to, in one particularly egregious case, suggesting ques

I pay for Google Gemini, but GPT-5 has convinced me to switch to ChatGPT and here’s why

Calvin Wankhede / Android Authority ChatGPT has become the Xerox of the AI world, but OpenAI no longer has the stage to itself. Google has been pushing Gemini deeper into its ecosystem, and every few weeks it feels like another rival pops up with promises of being faster, smarter, or more useful. So when the latest GPT-5 model launched last month, it felt like a release OpenAI couldn’t afford to get wrong. While OpenAI’s benchmarks claim that GPT-5 is better than the competition, the numbers o

AI Has a Hidden Water Cost—Here’s How to Calculate Yours

Artificial intelligence systems are thirsty, consuming as much as 500 milliliters of water – a single-serving water bottle – for each short conversation a user has with the GPT-3 version of OpenAI’s ChatGPT system. They use roughly the same amount of water to draft a 100-word email message. That figure includes the water used to cool the data center’s servers and the water consumed at the power plants generating the electricity to run them. But the study that calculated those estimates also po

OpenAI rolls out ChatGPT Projects to free users

OpenAI has announced that it's making its Projects feature available to free users of ChatGPT. Projects let you organize chats with the company's AI assistant around a specific subject, and were previously one of several privileges only enjoyed by paid subscribers. While on some level Projects are glorified folders for ChatGPT conversations, the ability to set custom instructions for how the AI responds or limit what information and files it can reference, makes the feature a useful option for

Show HN: Entropy-Guided Loop – How to make small models reason

Logprobs Reasoning Loop with Weights & Biases Weave, an observability tool Uncertainty-Aware Generation with OpenAI's Responses API This project demonstrates a novel approach to improving AI model reasoning by leveraging token-level uncertainty metrics (logprobs) to create self-correcting generation loops. We compare this uncertainty-aware approach against traditional reasoning models to test whether explicit uncertainty handling can match or exceed the performance of dedicated reasoning archi