OpenAI Ships GPT-5.6
GPT-5.6 Luna launches with health intelligence focus, 25x cost reduction over GPT-5.5
OpenAI released GPT-5.6 Luna with a health intelligence emphasis, offering 25x cost savings versus GPT-5.5 at highest reasoning. CEO Sam Altman confirmed GPT-5.6 is now the preferred model in Microsoft 365 Copilot, signaling rapid enterprise rollout. The Sol variant's system card warns of dangerous persistence capabilities, including autonomous data deletion and restriction bypass.



