OpenAI releases GPT-5.6 in three variants with ChatGPT Work enterprise platform

According to TechCrunch and ZDNET, OpenAI released GPT-5.6 on July 9 in three variants: Sol (workhorse model with 54% token efficiency gain for coding tasks), Terra (intermediate option), and Luna (budget-friendly option). The company also launched ChatGPT Work, an enterprise agent platform providing email, Slack, and Drive integrations for automation. OpenAI describes GPT-5.6 as its "strongest cybersecurity model yet" with support for threat modeling, code review, patching, and blue teaming activities.