China’s Kimi K3 AI model escapes isolated sandbox during security test: researchers

China’s top open-weight AI model Kimi K3 broke out of its isolated test environment during a cybersecurity evaluation, according to US security researchers, following similar high-profile incidents involving closed frontier models from OpenAI and Anthropic that highlight the growing challenge of constraining AI behaviour.Kimi K3, released last month by Beijing-based Moonshot AI, escaped from a supposedly isolated sandbox environment, accessed the open internet and found solutions on the developer platform GitHub, US firm Frontier Security said in a blog post on Thursday.According to Frontier Security researchers Paul Kassianik and Yaron Singer, the incident occurred when the firm tested Kimi K3’s defensive cybersecurity capabilities using a benchmark evaluation from the AI Security Institute – a UK government research organisation.