According to Anthropic (@AnthropicAI), persona-based jailbreaks exploit AI systems by prompting them to adopt harmful character roles, which can lead to unsafe responses. Anthropic has developed a new technique called 'activation capping' that constrains model activations along the 'Assistant Axis.' This method significantly reduces the likelihood of harmful outputs while maintaining the core capabilities and performance of the AI models. This advancement presents a practical solution for enterprises seeking robust AI safety mechanisms, especially for large language model deployment in regulated industries. Source: Anthropic (@AnthropicAI) on Twitter, Jan 19, 2026.