KevinMD July 12, 2025
When ChatGPT burst onto the scene in late 2022, many clinicians glimpsed the future then ran smack into a wall of red tape labeled “HIPAA.” Since then, large-language models (LLMs) have matured from clever chatbots into workhorse tools that summarize admission notes, draft prior-authorization letters, and even suggest antibiotic dosing. Yet most models still sit outside the guarded perimeter of protected health information.
Grok 4, the next-generation model from xAI, could finally bring useful clinical AI inside that boundary. Scheduled for release in 2025 and rumored to break the trillion-parameter mark, Grok 4 is being trained on roughly 300,000 NVIDIA-class GPUs. That scale matters: More parameters and better-curated data unlock a wider clinical vocabulary, deeper reasoning paths, and critically native...
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