OpenAI restricts its most advanced medical AI model to paying ChatGPT subscribers. The new "Health in ChatGPT" feature integrates health records and apps, giving paid users access to the powerful GPT-5.6 Sol model while relegating free users to the weaker GPT-5.5 Instant. This tiered approach highlights a growing capability divide between free and paid tiers in sensitive consumer AI verticals.
Opening Kapyn…