OpenAI

Codex in JetBrains IDEs

The announcement introduces Codex, OpenAI’s coding assistant, as a native feature inside JetBrains IDEs, allowing developers to interact with the model without leaving their preferred development environment. Users can authenticate using a ChatGPT account, an OpenAI API key, or a JetBrains AI subscription, and choose from three permission levels—read‑only, agent with user‑approved commands, or full access that permits unrestricted code changes. During the demo, Gleb from JetBrains walks through a multi‑platform Kotlin conference app, showing Codex automatically scanning the project, diagnosing iOS build failures, and applying fixes. The assistant then generates a complete Spanish localization, executes Gradle commands, and validates the changes by rebuilding the app, all while displaying the modified files as uncommitted edits within the IDE’s version‑control view. Key moments include Codex’s reasoning trace—highlighting which files it inspected—and its ability to run shell commands with user oversight. The model mirrors a developer’s workflow: first researching the codebase, then iteratively applying patches, and finally verifying functionality through the IDE’s native build tools. The sidebar interface lets developers continue their own tasks in parallel, closing the chat tab without interrupting work. The integration promises to eliminate context‑switching, accelerate debugging and feature implementation, and broaden AI‑assisted development across JetBrains’ suite, from IntelliJ to PyCharm and Rider. By embedding Codex directly into the tools developers already use, OpenAI and JetBrains aim to set a new standard for productivity‑focused AI coding assistants.