OpenAI enhances its AI-powered 'deep research' feature with a GitHub connector for analyzing codebases.The GitHub connector allows developers to ask questions about codebases, engineering documents, and more.ChatGPT Plus, Pro, and Team users will have access to the GitHub connector, with Enterprise and Edu support coming soon.OpenAI also introduces fine-tuning options for developers to customize newer models like o4-mini and GPT-4.1 nano for specific applications.