Oral assessments, more security checks and speedier marking are all on the cards as generative artificial intelligence (AI) could transform exams for the next generation of students. As the 2025 exam season drew to a close with GCSE students picking up their results on Thursday, after mostly sitting traditional pen and paper exams, AI is already changing the landscape. Exam preparation is undergoing a revolution, with students increasingly creating personal AI tutors, available around the clock to generate learning materials to suit individual needs that potentially lead to better results. "Using AI can give a student a much better understanding of a subject because they can ask those questions they wouldn't ask in class, or at odd hours, without being judged," said Dr Andrew Rogoyski of the Surrey Institute for People-Centred AI. "It really took off this summer," said Sandra Leaton Gray, a professor of education futures at University College London's Institute of Education. "So they're able to talk to it about the marking frameworks that are in use and upload those, and then they're able to do sample answers on their own. And then they're able to say to the AI: 'How would you improve the answer?' It's like having a tireless tutor."

Thousands of university students in the UK have been caught misusing ChatGPT and other artificial intelligence tools in recent years, while traditional forms of plagiarism show a marked decline, a Guardian investigation can reveal. A survey of academic integrity violations found almost 7,000 proven cases of cheating using AI tools in 2023-24, equivalent to 5.1 for every 1,000 students. That was up from 1.6 cases per 1,000 in 2022-23. Figures up to May suggest that number will increase again this year to about 7.5 proven cases per 1,000 students – but recorded cases represent only the tip of the iceberg, according to experts. The data highlights a rapidly evolving challenge for universities: trying to adapt assessment methods to the advent of technologies such as ChatGPT and other AI-powered writing tools.

Ninety-four per cent of university exam submissions created using ChatGPT weren't detected as being generated by artificial intelligence, and these submissions tended to get higher scores than real students' work. Peter Scarfe at the University of Reading, UK, and his colleagues used ChatGPT to produce answers to 63 assessment questions on five modules across the university's psychology undergraduate degrees. Students sat these exams at home, so they were allowed to look at notes and references, and they could potentially have used AI although this wasn't permitted. How this moment for AI will change society forever (and how it won't) The AI-generated answers were submitted alongside real students' work, and accounted for, on average, 5 per cent of the total scripts marked by academics. The markers weren't informed that they were checking the work of 33 fake students – whose names were themselves generated by ChatGPT.

An academic paper entitled Chatting and Cheating: Ensuring Academic Integrity in the Era of ChatGPT was published this month in an education journal, describing how artificial intelligence (AI) tools "raise a number of challenges and concerns, particularly in relation to academic honesty and plagiarism". What readers – and indeed the peer reviewers who cleared it for publication – did not know was that the paper itself had been written by the controversial AI chatbot ChatGPT. "We wanted to show that ChatGPT is writing at a very high level," said Prof Debby Cotton, director of academic practice at Plymouth Marjon University, who pretended to be the paper's lead author. "This is an arms race," she said. "The technology is improving very fast and it's going to be difficult for universities to outrun it."

The type of factual error that blighted the launch of Google's artificial intelligence-powered chatbot will carry on troubling companies using the technology, experts say, as the market value of its parent company continues to plunge. Investors in Alphabet marked down its shares by a further 4.4% to $95 on Thursday, representing a loss of market value of about $163bn (£140bn) since Wednesday when shareholders wiped around $106bn off the stock. Shareholders were rattled after it emerged that a video demo of Google's rival to the Microsoft-backed ChatGPT chatbot contained a flawed response to a question about Nasa's James Webb space telescope. The animation showed a response from the program, called Bard, stating that the JWST "took the very first pictures of a planet outside of our own solar system", prompting astronomers to point out this was untrue. Google said the error underlined the need for the "rigorous testing" that Bard is undergoing before a wider release to the public, which had been scheduled for the coming weeks.

Brian Comiskey, director of thematic programs at the CTA, hosted a panel walking through why innovation at the long term is important, with a focus on cybersecurities, Cloud Ai and robotics. The panel included Robert Blumofe from Akamai, Veronica Lancaster from the CTA and Efram Slen from Nasdaq. "I would characterize them as being in a reality phase," said Blumofe. These are colliding with reality, whereas AI and Cloud is delivering on their promise." According to the panelists, the realities of rising costs are going to transform the future.

Educational assessment might need a rethink in the wake of ChatGPT.Credit: Thomas Trutschel/Photothek/Getty Between overwork, underpayment and the pressure to publish, academics have plenty to worry about. Now there's a fresh concern: ChatGPT, an artificial intelligence (AI) powered chatbot that creates surprisingly intelligent-sounding text in response to user prompts, including homework assignments and exam-style questions. The replies are so lucid, well-researched and decently referenced that some academics are calling the bot the death knell for conventional forms of educational assessment. How worried should professors and lecturers be? "At the moment, it's looking a lot like the end of essays as an assignment for education," says Lilian Edwards, who studies law, innovation and society at Newcastle University, UK. Dan Gillmor, a journalism scholar at Arizona State University in Tempe, told newspaper The Guardian that he had fed ChatGPT a homework question that he often assigns his students -- and the article it produced in response would have earned a student a good grade. ChatGPT is the brainchild of AI firm OpenAI, based in San Francisco, California.

The Royal Navy is using artificial intelligence for the first time at sea in a bid to defeat missile attacks. Leading-edge software is being tested at sea against live missiles during the largest exercise of its type off the coasts of Scotland and Norway. Involving more than 3,000 military personnel, Formidable Shield tests the ability of NATO warships to detect, track and defeat incoming missiles, from sea-skimming weapons travelling at twice the speed of sound just above the waterline, to ballistic missiles. Three Royal Navy warships are taking part in the exercise, which runs until early June: destroyer HMS Dragon and two frigates, Lancaster and Argyll. HMS Lancaster and Dragon are trialing artificial intelligence and machine learning applications which offer a glimpse of the future of air defence at sea.

It's not often that a twitching, snowman-shaped blob of 3D human tissue makes someone's day. But when Dr. Sergiu Pasca at Stanford University witnessed the tiny movement, he knew his lab had achieved something special. You see, the blob was evolved from three lab-grown chunks of human tissue: a mini-brain, mini-spinal cord, and mini-muscle. Each individual component, churned to eerie humanoid perfection inside bubbling incubators, is already a work of scientific genius. But Pasca took the extra step, marinating the three components together inside a soup of nutrients.

It was billed as one of the most important company-wide meetings in the history of Uber. Yet as staff gathered on Tuesday morning at Uber's headquarters in San Francisco, there was one very conspicuous absence. "Let us address the elephant in the room," said Arianna Huffington, perhaps the most high-profile member of Uber's board. The answer: Travis Kalanick, Uber's 40-year-old co-founder and chief executive, was taking a leave of absence from the taxi-hailing app he has transformed into a global behemoth valued at almost $70bn. Huffington told Uber's staff that the company would not await Kalanick's return, choosing instead to act immediately on the findings of a damning investigation, accepted by the board, into the company's workplace culture amid claims of sexual harassment. "Uber is his life," she said of Kalanick.