OpenAI is rolling out ChatGPT Health to all U.S. users over 18 on free and paid plans, letting them link personal data from Apple Health, Epic and other platforms. The feature, tested since January amid rising health queries and a lawsuit over bad advice, still carries a disclaimer against using it for formal diagnosis.

• ChatGPT Health is now available to all US users 18+ across free and paid plans, letting them connect data from Apple Health, Epic, and similar platforms into any chat.
• Health-related queries on ChatGPT have jumped from 230 million to 300 million per week since January testing began.
• OpenAI still disclaims the tool for diagnosis or treatment, a stance relevant to a lawsuit claiming ChatGPT discouraged a Florida pastor from seeing a doctor.

This article profiles eight healthcare services companies using AI across their care stacks to cut costs, speed up treatment, and boost patient engagement. From smarter caregiver scheduling at Honor to AI-driven patient outreach at Cityblock, each example shows measurable improvements in outcomes, efficiency, or retention. The piece argues that service-focused models with embedded AI have a durable edge over pure software plays.

• Honor cut home-caregiver churn from an industry-standard 85% annually down to the mid-30s by using AI to match schedules to caregivers' actual behavior, not just stated preferences.
• Ro's AI triage tool slashed median patient response time from under 2 hours to 33 minutes, answering urgent messages in 26 minutes or less.
• Aledade's EHR Overlay is live in 85%+ of eligible practices and made diabetic patients 40% more likely to fill statin prescriptions within two weeks.
• The article's core argument: embedding AI into service delivery (not just selling standalone software) is what's driving durable, measurable gains in cost, speed, and engagement across these companies.