GPT-5.6 Luna outperforms GPT-5.5 on health reasoning, while being 25x cheaper (twitter.com)

OpenAI has announced the release of GPT-5.6 Luna, a significant upgrade to its AI language model that showcases remarkable progress in health reasoning capabilities. Impressively, GPT-5.6 outperforms its predecessor, GPT-5.5, particularly in its highest reasoning settings, while simultaneously reducing costs by a staggering 25 times. This combination of enhanced performance and affordability is poised to democratize access to advanced AI for health-related applications, enabling a broader range of users to leverage its capabilities. The advancements in GPT-5.6 Luna are particularly notable for the AI/ML community as they suggest that higher performance can be achieved without corresponding increases in computational expense. This development not only sets a new standard for health intelligence but also indicates a trend towards more efficient AI models. Such progress could improve decision-making in healthcare and make sophisticated AI tools available to practitioners and researchers with limited resources, ultimately benefiting global health outcomes.