OpenAI has unveiled GPT-4.5, its most expansive AI model yet, code-named Orion. The new release marks a significant milestone in the evolution of the company’s language models, boasting increased computing power and a more extensive dataset than any previous version.
In a recent announcement, CEO Sam Altman highlighted the challenges encountered during the model’s rollout. “We had to stagger the rollout because we were literally out of GPUs,” Altman said, underscoring the unprecedented scale and computational demands of GPT-4.5. Early access to the model is currently available as a research preview for subscribers to the $200-a-month ChatGPT Pro plan. Meanwhile, users on ChatGPT Plus and ChatGPT Team plans are expected to receive access next week.
OpenAI’s latest model builds on the capabilities of its predecessors, promising enhanced performance across a range of applications from natural language understanding to complex reasoning. As part of a broader industry trend toward larger, more capable AI systems, GPT-4.5 is set to fuel advancements in both academic research and commercial applications.
The launch of GPT-4.5 comes amid a dynamic period in the tech sector, with significant developments unfolding across various areas of artificial intelligence. As OpenAI continues to push the boundaries of what is possible with large language models, industry observers will be watching closely to see how these innovations influence the rapidly evolving AI landscape.
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Start your day informed with the AnewZ Morning Brief. Here are the top stories for the 29th of April, covering the latest developments you need to know.
Elon Musk took the stand on Tuesday (28 April) at a high-stakes trial over the future of OpenAI, casting his lawsuit against the ChatGPT maker as a defence of charitable giving.
A pivotal trial that could shape the governance of artificial intelligence begins Tuesday in California, as Elon Musk and Sam Altman face off over OpenAI’s shift to a for-profit model.
The United States has issued an international warning accusing Chinese firms, including AI start-up DeepSeek, of allegedly stealing intellectual property from American artificial intelligence labs.
Efforts to end the U.S.-Iran war appeared to stall as the two sides exchanged fire in and around the Strait of Hormuz. A reported CIA assessment suggested Tehran could withstand a U.S. naval blockade for months despite mounting sanctions and renewed Gulf attacks.
British paratroopers and military medics have been deployed to Tristan da Cunha after a suspected hantavirus case was confirmed, as first evacuation flights carrying passengers from the stricken MV Hondius cruise ship left Tenerife for Madrid and Paris.
Russia is holding a significantly scaled-back Victory Day parade in Moscow on 9 May 2026, reflecting heightened security concerns and the ongoing war in Ukraine, now in its fourth year.
Indonesian rescue teams have located two Singaporeans who went missing after Mount Dukono erupted on Friday (8 May) on the island of Halmahera, though authorities say it remains unclear whether they are alive.
The U.S. Defense Department has released dozens of previously classified files on unidentified anomalous phenomena (UAP) on Friday (8 May), following an order from President Donald Trump. U.S. officials described as a push for “unprecedented transparency”.
A robotics startup says it has built an AI “brain” that can teach humanoid robots new physical skills in days rather than months, as the race to deploy human-shaped machines in factories and warehouses accelerates.
Apple and Meta have publicly opposed a Canadian bill they say could force technology companies to weaken encryption on devices and online services if it becomes law.
European Union countries and European Parliament lawmakers have agreed on a softened version of the bloc’s landmark artificial intelligence rules, including delayed implementation, in a move critics say reflects growing concessions to major technology firms.
Almaty is hosting GITEX AI Kazakhstan 2026 two-day event, drawing global tech firms and investors as Central Asia gains attention as a fast developing digital market. President Kassym-Jomart Tokayev visited the GITEX AI Central Asia & Caucasus exhibition in Almaty on 4 May.
A humanoid robot called Sophia took an unusual place at the heart of a classical concert in Hong Kong on Wednesday (29 April), as she performed alongside a live orchestra for the first time.
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