GitHub Copilot has started rolling out its new public preview for OpenAI’s GPT-5-Codex model, designed to improve coding capabilities. The model is now available to users with Copilot Pro, Pro+, Business, and Enterprise plans.
To access the feature, administrators with Business and Enterprise plans need to enable the policy in Copilot settings. Users on Pro and Pro+ plans can simply select the GPT-5-Codex model in the Visual Studio Code picker. The rollout will be gradual, so check for updates if you don’t see the model yet.
The new feature aims to enhance coding experiences with agentic coding capabilities. To learn more about the model and best practices for use, visit OpenAI’s documentation and prompting guide. Share your feedback and tips in the community discussion to help improve GitHub Copilot.
Source: https://github.blog/changelog/2025-09-23-openai-gpt-5-codex-is-rolling-out-in-public-preview-for-github-copilot