GitHub Copilot: OpenAI’s GPT-5.6 Sol, Terra, and Luna are now available in GitHub Copilot

Released Jul 9, 2026 · GitHub / Microsoft

Models:Adds GPT-5.6 Sol

What the release notes say

OpenAI’s GPT-5.6 Sol, Terra, and Luna are now available in GitHub Copilot

Source: github.blog ↗