OneAdvanced and NVIDIA pilot sovereign AI model for NHS care navigation

A UK-based healthcare software provider has completed a pilot programme developing a sovereign artificial intelligence model designed to improve triage accuracy and care navigation across NHS primary care settings.

According to a report by Business Wire, OneAdvanced partnered with NVIDIA to build and validate its Care Navigator LLM, trained on pseudonymised NHS patient online consultation requests processed through its Patchs platform, which handles more than 500,000 monthly patient interactions across the UK. The model was built using NVIDIA's Nemotron open models and NeMo libraries and evaluated against a broad range of external large language models.

The pilot demonstrated inference costs up to 150 times lower than leading frontier models, with the Care Navigator LLM outperforming external models including Claude Sonnet and Haiku variants, and achieving significantly higher accuracy than a GP control group in benchmark categorisation tasks. OneAdvanced describes the combination of these results as demonstrating the potential to improve triage accuracy at national scale while reducing NHS waste and increasing clinical capacity.

Unlike general-purpose large language models, the Care Navigator LLM learns continuously from clinician corrections made within the system, with GP inputs forming the basis of ongoing training data. All patient data is stored, hosted, and governed under UK law, with model weights, fine-tuning, and inference remaining entirely within the UK perimeter to meet NHS data residency and regulatory compliance requirements.

Dr Ben Brown, GP Partner at Langworthy Medical Practice and Medical Director at OneAdvanced, said the model allows clinicians to "understand the patients' needs quicker and deal with their request more effectively," reducing workload for staff while ensuring patients receive appropriate care faster.

Simon Walsh, Chief Executive Officer at OneAdvanced, said: "The future of AI in healthcare will not be built on generic models. In healthcare, accuracy, governance and context matter more than anything."

Anthony Hills, Director UK and Ireland at NVIDIA, noted that the pilot highlights the difference organisations with deep NHS expertise and context can make in accelerating digital transformation across healthcare.

Discover the full findings from the OneAdvanced and NVIDIA Care Navigator pilot in the complete story.