JetBrains Junie vs OpenAI Codex

JetBrains Junie

8.0 #8 in AI Coding Assistants

About JetBrains Junie

OpenAI Codex

7.0 #31 in AI Coding Assistants

About OpenAI Codex
JetBrains JunieOpenAI Codex
Free planYesNo
Free trialYesNo
Paid from$8.33/mo—
Open sourceNoNo
Platformsextension, Linux, macOS, Web, WindowsWeb, Windows, macOS, Linux
Free planYesNo
Paid from$8.33/user/mo—
Chat assistanceYesYes
Coding agentYesYes
Supported IDEsIntelliJ IDEA Ultimate, PyCharm Pro, WebStorm, GoLand, IntelliJ IDEA Community, PhpStorm, RubyMine, RustRover, CLion, Rider, Android StudioVisual Studio Code; Cursor; Windsurf; Visual Studio Code Insiders; Xcode; JetBrains IDEs
Codebase indexingYesYes
Terminal accessYesYes

Both are listed in Best AI Coding Assistants, Best AI Code Generators. On Samsung Mobile US Press, JetBrains Junie scores higher on our published basis.