UK Agency Identifies “Universal Jailbreaks” in GPT-5.6 Sol

# UK Agency Identifies “Universal Jailbreaks” in GPT-5.6 Sol Source: [https://wealthari.com/uk-agency-identifies-universal-jailbreaks-in-gpt-5-6-sol/](https://wealthari.com/uk-agency-identifies-universal-jailbreaks-in-gpt-5-6-sol/) The UK AI Security Institute \(AISI\) has identified so\-called “universal jailbreaks” in OpenAI’s GPT\-5\.6 Sol, raising fresh concerns about the security of advanced AI systems\. According to findings disclosed in the model’s system card on July 9, these jailbreaks enabled the model to bypass safeguards and perform complex, multi\-step cyber operations\. - [OpenAI’s Response and Mitigation Efforts](https://wealthari.com/uk-agency-identifies-universal-jailbreaks-in-gpt-5-6-sol/#openai8217s-response-and-mitigation-efforts) - [Parallels With Anthropic’s Fable 5 Incident](https://wealthari.com/uk-agency-identifies-universal-jailbreaks-in-gpt-5-6-sol/#parallels-with-anthropic8217s-fable-5-incident) - [Diverging Regulatory Responses](https://wealthari.com/uk-agency-identifies-universal-jailbreaks-in-gpt-5-6-sol/#diverging-regulatory-responses) During pre\-deployment testing, AISI found that the model could carry out long\-form, agentic tasks related to vulnerability discovery and exploit development\. In controlled cyber range evaluations, GPT\-5\.6 Sol completed 7 out of 10 long\-horizon offensive security challenges — an increase from 2 out of 10 achieved by its predecessor, GPT\-5\.5\. The agency concluded that the model may be capable of targeting small\-scale enterprise environments with weak security defenses\. ## OpenAI’s Response and Mitigation Efforts OpenAI stated that it successfully reproduced and mitigated the specific jailbreak techniques identified by AISI prior to the model’s public release\. The company reported dedicating over 700,000 A100e GPU hours to automated red\-teaming focused on detecting universal jailbreak vulnerabilities\. Despite these efforts, OpenAI acknowledged that new jailbreaks are likely to emerge over time\. The company has committed to ongoing automated red\-teaming and continuous monitoring as part of its deployment strategy\. ## Parallels With Anthropic’s Fable 5 Incident The findings have drawn comparisons to a recent incident involving Anthropic’s Fable 5 model\. In June, the U\.S\. Commerce Department imposed export controls after reports revealed that jailbreak techniques could unlock advanced cyber capabilities within the model\. Researchers, including those affiliated with Amazon, demonstrated that Fable 5 could be used to gather information potentially facilitating cyberattacks\. This prompted the U\.S\. government to intervene, temporarily restricting access to the model\. The controls were lifted on June 30 after Anthropic implemented mitigations\. ## Diverging Regulatory Responses Despite similarities in the nature of the vulnerabilities, regulatory responses have differed significantly\. GPT\-5\.6 Sol was released broadly on July 10, even as AISI flagged comparable jailbreak risks\. OpenAI has classified the model as having “High” cybersecurity capability under its Preparedness Framework — though not “Critical” — citing its inability to autonomously execute full\-scale attacks against hardened systems\. The company relies on layered safeguards, including activation classifiers and real\-time output monitoring\. The contrast between the U\.S\. government’s intervention in the Anthropic case and the approval of OpenAI’s release has sparked debate among AI safety researchers\. Critics argue that inconsistent regulatory actions may complicate efforts to manage the risks posed by increasingly capable frontier models\. **Disclosure:**Wealthari works with brand partners and receives compensation for some recommendations\. Our content remains independent and reflects our honest evaluations\.