You can now use GPT-5.2-Codex in more IDEs

Over a month ago, OpenAI announced the GPT-5.2 series of models, incrementally building upon its AI advancements. Among these is the GPT-5.2-Codex model, which is its specialized model for agentic coding. This model was made available via the OpenAI API a couple of weeks ago, and now, it has naturally made its way to GitHub Copilot.

GPT-5.2-Codex is now available for customers subscribed to Copilot Enterprise, Copilot Business, Copilot Pro, and Copilot Pro+. This means that subscribers can now access it via GitHub Copilot integrated with multiple IDEs, such as:

• Visual Studio versions 17.14.19 and later, 18.0.0 and later, in all modes: ask, agent.
• GitHub Copilot for JetBrains versions 1.5.61 and later, in all modes: ask, edit, agent.
• GitHub Copilot for Xcode versions 0.45.0 and later in all modes: ask, agent.
• GitHub Copilot for Eclipse versions 0.13.0 and later in all modes: ask, agent.

Along with the aforementioned IDEs, you'll also be able to access it through GitHub Copilot Chat on the GitHub website and GitHub Mobile.

Do keep in mind, though, that IT admins who have access to Enterprise and Business subscriptions will first need to enable the GPT-5.2-Codex policy and opt in through Copilot settings. After this has been done, tenant users should be able to see it in the model picker interface in their respective IDEs.

OpenAI's GPT models are heavily used in coding environments, so it makes sense that GPT-5.2-Codex is being made available to more developers through accessible interfaces. GPT-5.2-Codex is OpenAI's most advanced agentic coding model to date. The model is optimized for agentic workflows in Codex and includes improvements such as better long-horizon performance through various features, like making context windows more compact. It has also performed quite well in performance benchmarks such as SWE-Bench Pro and Terminal-Bench 2.0. It is also supported in other IDEs like Cursor, Windsurf, and Factory.