OpenAI Unveils GPT-5.6 Model Family with Public Release of Sol Terra and Luna Following Federal Regulatory Review
OpenAI officially transitioned its GPT-5.6 suite, comprising the Sol, Terra, and Luna models, to general availability today, ending a twelve-day period of restricted access that had kept the world’s most…
OpenAI Launches GPT-5.6 Model Family Introducing Sol Terra and Luna with Advanced Reasoning and Government-Approved Cybersecurity Safeguards
The global landscape of artificial intelligence underwent a significant transformation on July 9, 2026, as OpenAI officially released its latest generation of large language models, the GPT-5.6 series. Comprising three…








