Inside JetBrains—the company reshaping how the world writes code

Source: OpenAI Date: 2025-11-25 URL: https://openai.com/index/jetbrains-2025

Summary

OpenAI feature post from November 2025 profiling JetBrains — the developer tooling company behind IntelliJ IDEA, PyCharm, and the broader IDE ecosystem — and JetBrains’ integration of OpenAI capabilities (likely GPT-5.1 or Codex) into its AI Assistant product. JetBrains served tens of millions of developers through its IDE products, making a deep OpenAI integration a significant distribution channel for Codex capabilities inside professional development environments.

Implications

IDE ecosystem as a Codex distribution channel. JetBrains’ AI Assistant integration extended Codex capabilities to a developer base that preferred JetBrains IDEs over VS Code, which had GitHub Copilot and native Claude Code integration as its AI layer. The OpenAI/JetBrains relationship competed with the GitHub/Copilot/VS Code stack for professional developer mindshare.

Thread: Codex ecosystem and developer tool integrations. Sits alongside the GitHub Copilot relationship, the VS Code Codex integration, and the CyberAgent and Harness case studies as evidence of Codex penetrating professional software development workflows through IDE integrations.

Watch: Whether JetBrains users adopted the OpenAI-powered AI Assistant at meaningful rates given the existing competition from Copilot in VS Code, and how the JetBrains integration compared to GitHub Copilot in terms of code completion quality and agentic task support.