OpenAI has begun offering a version of ChatGPT designed for US government agencies. ChatGPT Gov includes many of the same features found in the Enterprise offering of the chatbot, including access to the company's GPT-4o model. "By making our products available to the US government, we aim to ensure AI serves the national interest and the public good, aligned with democratic values, while empowering policymakers to responsibly integrate these capabilities to deliver better services to the American people," OpenAI said in a blog post published Tuesday. Before today, US government employees were already using ChatGPT in their day-to-day work. According to the company, federal, state and local government workers at 3,500 agencies across the country have sent more than 18 million messages since 2024.

When you ask ChatGPT what the most popular reasons to use ChatGPT are, it says that assisting people to write is one of them. From gathering and summarising information in a helpful format to even writing blog posts on a topic, ChatGPT has become an AI companion for many across different workplaces. As a proud Scottish football fan, I asked ChatGPT and DeepSeek to summarise the best Scottish football players ever, before asking the chatbots to "draft a blog post summarising the best Scottish football players in history". DeepSeek responded in seconds, with a top ten list - Kenny Dalglish of Liverpool and Celtic was number one. It helpfully summarised which position the players played in, their clubs, and a brief list of their achievements.

DeepSeek's cut-price challenge to US AI dominance, which wiped 600bn in Nvidia's market value on Monday and caused the tech-weighted Nasdaq index to drop 3%, also took a bite out of the fortunes of some of the world's wealthiest men. Nvidia's record stock plunge, judged to be the biggest market value drop in US stock market history, according to Bloomberg, took with it 20.7bn of its CEO and biggest individual shareholder, Jensen Huang. The share-price drop left Huang, the company co-founder, with a net worth of 103.7bn late on Monday, down from 124.4bn. According to Forbes' real-time billionaires ranking, that pushes the 61-year-old tech tycoon from 10th to 17th place in global wealth rankings, behind Zara fashion mogul Amancio Ortega; Walmart heirs Rob, Jim and Alice Walton; Microsoft cofounder Bill Gates; Dell CEO Michael Dell; and former New York mayor Michael Bloomberg. Exceeding Huang's paper losses from Monday's trading is cat rancher and Oracle chair Larry Ellison, who recorded a 27.6bn loss after shares in Oracle stock dropped 14%, knocking him down from third wealthiest man to fifth, behind Meta CEO Mark Zuckerberg and LVMH luxury tycoon Bernard Arnault.

OpenAI CEO Sam Altman sits down with Shannon Bream to discuss the positives and potential negatives of artificial intelligence and the importance of maintaining a lead in the A.I. industry over China. OpenAI has announced a new "ChatGPT for Gov" product that the company says will provide U.S. government agencies an additional way to access their frontier large language models (LLMs) while maintaining internal security standards. "We believe the U.S. government's adoption of artificial intelligence can boost efficiency and productivity and is crucial for maintaining and enhancing America's global leadership in this technology. This includes making our models available to support public sector work that benefits society – such as public health, energy and the environment, transportation and infrastructure, consumer protection, and national security," OpenAI wrote in a Tuesday press release. The company believes that partnering with the U.S. government is key to ensuring rapidly developing AI capabilities are well understood by policymakers and responsibly integrated to deliver services to American citizens.

DeepSeek, the latest alternative to ChatGPT and other AI assistants, recently released a new version that's causing chaos and confusion across the AI landscape. With reports about DeepSeek's outstanding performance and power efficiency emerging, established entities like OpenAI and Meta are getting quite nervous. None more nervous than Nvidia, though, whose market cap plummeted in response to the hype over DeepSeek. According to Bloomberg, Nvidia lost a record 569 billion at the start of the week. Companies like Siemens Energy and Oracle also saw their stock prices fall.

Experts have urged caution over rapidly embracing the Chinese artificial intelligence platform DeepSeek, citing concerns about it spreading misinformation and how the Chinese state might exploit users' data. The new low-cost AI wiped 1tn off the leading US tech stock index this week and it rapidly became the most downloaded free app in the UK and the US. Donald Trump called it a "wake-up call" for tech firms. Its emergence has shocked the tech world by apparently showing it can achieve a similar performance to widely used platforms such as ChatGPT at a fraction of the cost. Michael Wooldridge, a professor of the foundations of AI at Oxford University, said it was not unreasonable to assume data inputted into the chatbot could be shared with the Chinese state. He said: "I think it's fine to download it and ask it about the performance of Liverpool football club or chat about the history of the Roman empire, but would I recommend putting anything sensitive or personal or private on them?

A new Chinese-developed AI assistant, DeepSeek, has crashed tech markets in the US and caused investors to wonder if American dominance in AI is over.

Just a week in, the AI sector has already seen its first battle of wits under the new Trump administration. The clash stems from two key pieces of news: the announcement of the Stargate project, which would spend 500 billion--more than the Apollo space program--on new AI data centers, and the release of a powerful new open-source model from China. Together, they raise important questions the industry needs to answer about the extent to which the race for more data centers--with their heavy environmental toll--is really necessary. If, in dissecting DeepSeek R1, AI companies discover some lessons about how to make models use existing resources more effectively, perhaps constructing more and more data centers won't be the only winning formula for better AI. This story originally appeared in The Algorithm, our weekly newsletter on AI.

There was a lot of news last week. The Guardian's journalism is independent. We will earn a commission if you buy something through an affiliate link. Donald Trump, Sam Altman, Masayoshi Son and Larry Ellison announced a 500bn initiative to expand infrastructure supporting artificial intelligence dubbed Stargate. On its heels came a press release from Meta vowing to expand its capital expenditure to 65bn in the coming year to expand its data centers.

If you ask a historian what happened on June 4, 1989, you will learn that this was the date that hundreds of protesters were killed in the Tiananmen Square Massacre. However, if you ask China's controversial ChatGPT rival, DeepSeek, you are unlikely to get any response at all. During testing, MailOnline watched in real-time as answers to sensitive questions were scrubbed and replaced with evasive replies. On topics censored by the Chinese Communist Party (CCP), the bot briefly attempts to respond before wiping away its own answers in front of the user's eyes. DeepSeek actively censors topics related to protests such as the White Paper Movement and Hong Kong's pro-democratic Umbrella Movement.