github: OpenAI’s GPT-5.2 is now in public preview for GitHub Copilot

OpenAI’s GPT-5.2 is now in public preview for GitHub Copilot, a model optimized for long context handling and front-end UI generation, and is available to Copilot Pro, Pro+, Business, and Enterprise users (announced on the GitHub Blog, 2025-12-11).

• Source: GitHub