github: GPT-5.2 is now generally available in GitHub Copilot

GitHub announced that GPT-5.2 is now generally available in GitHub Copilot (Dec 17, 2025). The model is available to Copilot Enterprise, Copilot Business, Copilot Pro, and Copilot Pro+ customers and can be used in GitHub Copilot Chat on github.com and GitHub Mobile.

• Source: GitHub