JetBrains Junie vs OpenAI Codex
JetBrains Junie
junie.jetbrains.comOpenAI Codex
openai.comSide by side
| Figure | JetBrains Junie | OpenAI Codex |
|---|---|---|
| Price from | $8.33/mo | — |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| Plans published | 4 | 6 |
| Spec score · AI Coding Assistants | 9.2 (#9) | 8.6 (#31) |
| Spec score · AI Code Generators | 8.7 (#21) | 8.1 (#41) |
| Coding agent | Yes | Yes |
| Chat assistance | Yes | Yes |
| Codebase indexing | Yes | Yes |
| Free plan | Yes | No |
| Purpose | Junie is JetBrains’ coding agent, available in JetBrains IDEs, in a terminal, and headless in CI/CD scripts. | Codex is an AI coding partner for engineering work such as finding bugs, refactoring, and building features. |
| Security | The product page says JetBrains tools adhere to security standards including SOC 2 certification. | OpenAI says infrastructure for its products uses encryption in transit and at rest, change management, and strict access controls. |
| Support | The Junie page links users to a Discord channel, GitHub, a contact form, and a support guide. | OpenAI links users to its Help Center and service status page for support resources. |
| Supported IDEs | IntelliJ IDEA Ultimate,PyCharm Pro,WebStorm,GoLand,IntelliJ IDEA Community,PhpStorm,RubyMine,RustRover,CLion,Rider,Android Studio | Visual Studio Code; Cursor; Windsurf; Visual Studio Code Insiders; Xcode; JetBrains IDEs |
| Terminal access | Yes | Yes |
Plans
JetBrains Junie
- Free to StartFree
- AI Pro$8.33 a month
- AI Ultimate$25 a month
- Junie Lite / BYOKFree
OpenAI Codex
- Business StandardPrice not published
- Business PremiumPrice not published
- EnterprisePrice not published
- Business$20 a month
- Plus$20 a month
- Pro$100 a month
In their own words
JetBrains Junie
JetBrains Junie is a coding agent for work in JetBrains IDEs, a terminal, or headless CI/CD scripts. It offers chat assistance, codebase indexing, terminal access, and agent mode. Advanced Plan Mode lays out requirements, design, and delivery stages before code changes; plans can be edited and committed in.junie/plans. Users can review key actions, and the CLI requests approval for sensitive actions unless brave mode is enabled or an action is allowed. Junie supports models from OpenAI, Anthropic, Google, and xAI, while the CLI can use provider API keys directly. Remote Control lets users monitor asynchronous CLI runs in a web app. Project guidelines, Agent Skills packages, and slash commands shared across CLI and IDE through ACP are also supported. The IDE plugin works with listed JetBrains IDEs and Android Studio. The CLI runs on Linux, macOS, and Windows, though sandbox mode is limited to macOS and Linux. Free to Start is free with five AI credits; paid plans start at $8.33 a month per user.
OpenAI Codex
OpenAI Codex has no write-up on Specifiction yet; its figures are above.