The differences between these three companies in the medical/healthcare field: 1. Different technical approaches: Google trains and releases specialized models, while the other two are more like workflow systems based on flagship models (agentic systems/connectors/skills, etc.). 2. Different focus areas: Google specializes in native high-dimensional image understanding (CT/pathology), OpenAI focuses on personal health data context, and Anthropic focuses on connecting authoritative industry rule databases (CMS/insurance). 3. Different delivery formats: Google delivers open-weight models that can operate offline, while OpenAI and Anthropic deliver closed-source SaaS. 4. Different entry points: OpenAI is capturing the interactive front-end (entry point), Anthropic is embedding into business back-end (processes), and Google is providing the development foundation (infrastructure). 5. Different compliance strategies: OpenAI builds trust through data isolation, Anthropic relies on citation traceability for audits, and Google uses terms and conditions to shift responsibility.