Mark Zuckerberg has published an essay advocating for open source artificial intelligence (AI) coinciding with the release of Llama 3 405B. In his essay, he argues that open source models are preferable to closed systems, citing concerns over vendor lock-in and state-backed espionage. Zuckerberg's advocacy emphasizes the potential societal benefits of open source AI, positioning it as a critical path for the technology industry. His essay has garnered attention for its persuasive arguments and insights into AI safety.