GitHub Copilot Adds OpenAI’s GPT-5.6 Sol, Terra, and Luna Models
Millions of developers open GitHub Copilot every day without thinking much about which AI model is actually answering them. That changed again this week. On July 9, 2026, GitHub confirmed that OpenAI’s GPT-5.6 family — three separate models named Sol, Terra, and Luna — is now available inside Copilot, giving developers an explicit choice between … Read more