OpenAI logo, owner of ChatGPT AP Photo/Michael Dwyer OpenAI launches this Thursday (9) GPT-5.6, its most advanced artificial intelligence model, after postponing its debut last month at the request of Donald Trump's government. The postponement came amid rising concerns about national security and the possible misuse of high-capacity AI technologies. ??Do you have any reporting suggestions? Send to g1 Until now, GPT-5.6 was only available to a restricted group of OpenAI partners, previously approved by the company and the United States government. In a post on the social network X on Tuesday night, the owner of ChatGPT announced that, in addition to the GPT-5.6 Sol, the company will also launch the Terra and Luna models, which have a lower cost. When presenting the new models at the end of June, OpenAI stated that they bring advances in the ability to perform tasks more autonomously — in areas such as programming and cybersecurity. According to the company, GPT-5.6 Sol performed similarly to Anthropic's Mythos Preview in a test used to measure the ability of AI models in cybersecurity-related tasks. Read also: Mother sues OpenAI and says that ChatGPT encouraged her daughter's suicide Apple loses appeal against European Union law that limits the power of big techs Owner of ChatGPT proposes giving up 5% stake to the US government, says newspaper Dispute in AI The United States and China are competing for leadership in the development of cutting-edge artificial intelligence models that can significantly accelerate sophisticated cyber attacks against sectors that depend on complex, interconnected technological systems that are often decades old. Faced with this scenario, the American government intensified the analysis of new advanced AI models before their launch to identify possible risks, given concerns that the technology could be exploited by military forces or intelligence services from China, Russia and other countries. Chinese authorities have also held meetings with the country's top technology companies to discuss the possibility of restricting international access to China's most advanced AI models, including those that have not yet been launched. Anthropic, a competitor to OpenAI, had abruptly disabled its most advanced AI models, Mythos 5 and Fable 5, for all users following the export control order issued by the US government on June 12, motivated by national security concerns. The restrictions were lifted last week after the company implemented additional protective measures. The website Axios, which first reported the news about OpenAI's launch, reported that President Donald Trump's administration approved the broad launch of GPT-5.6 after additional testing and meetings between company representatives and American officials. The White House and the U.S. Commerce Department did not respond to Reuters' requests for comment outside business hours. Billionaire Elon Musk, whose company SpaceXAI competes with Anthropic and OpenAI, said on Wednesday that he is also making his main AI model, Grok 4.5, available to the public. National security concerns Trump signed an executive order that creates a voluntary mechanism by which AI developers can present their so-called "frontier models" to the US government for up to 30 days before releasing them to partners deemed trustworthy. Although Washington has lifted export restrictions on Anthropic's Fable model, Mythos, developed for cybersecurity professionals, remains available only to some US organizations considered "trusted". In China, authorities are concerned about the possibility of Mythos being used to exploit software vulnerabilities and the possibility of the United States using the model against Beijing's interests. Anthropic stated that it is "probably impossible" to make any artificial intelligence model completely resistant to jailbreak techniques — methods used to bypass the restrictions and security mechanisms of these systems.