According to Greg Brockman on X, ChatGPT assisted a cancer patient named Sid in identifying additional treatment options after clinicians said no options remained, highlighting generative AI’s potential in patient-centric care navigation (source: Greg Brockman, X, Mar 21, 2026). As reported by Greg Brockman, the case underscores how large language models can synthesize clinical guidance, surface clinical trials, and support second-opinion workflows when paired with verified medical sources and clinician oversight (source: Greg Brockman, X). According to industry best practices cited by OpenAI and healthcare AI deployments, the commercial opportunity lies in building regulated copilots that integrate with EHRs, NCCN and FDA-approved therapies, and clinical trial registries, with audit logs and guardrails for safety (source: OpenAI system card statements and documented healthcare integrations referenced in OpenAI developer materials).