OpenAI ChatGPT Models Reportedly Jailbroken to Provide Chemical, Biological, and Nuclear Weapons Instructions
An NBC News investigation found that OpenAI's language models o4-mini, GPT-5-mini, oss-20b, and oss-120b could be jailbroken under normal usage conditions to bypass safety guardrails and generate detailed instructions for creating chemical, biological, and nuclear weapons. Using a publicly documented jailbreak prompt, reporters repeatedly elicited hazardous outputs such as steps to synthesize pathogens or maximize harm with chemical agents. The findings reportedly revealed significant real-world safeguard failures, prompting OpenAI to commit to further mitigation measures.
- Date it happened
- 2025-10-10
- Organisation involved
- OpenAI
- Product, system or model
- gpt-oss-20b, gpt-oss-120b, GPT-5 mini, ChatGPT, OpenAI o4-mini
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