According to Anthropic (@AnthropicAI), the latest cohort of Anthropic Fellows has open-sourced new methods and tools for tracing circuits within language models, aiming to support deeper interpretation of model internals. This advancement allows AI researchers and developers to better understand how large language models process information, leading to improved transparency and safety in AI systems. The open-source tools offer practical applications for AI model auditing and debugging, providing business opportunities for companies seeking to build trustworthy and explainable AI solutions (source: Anthropic, July 29, 2025).