{"type": "article", "title": "OpenAI and Anthropic Sign Letter to Prevent AI-Developed Biological Weapons", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/openai-and-anthropic-sign-letter-to-prevent-ai-developed-biological-weapons", "original_source": "https://www.wired.com/story/openai-anthropic-letter-ai-biological-weapons/", "published": "2026-06-04T01:01:00+00:00", "accessed": "2026-06-04", "id": "openai-and-anthropic-sign-letter-to-prevent-ai-developed-biological-weapons"}