Junie (JetBrains)

Junie is JetBrains' LLM-agnostic AI coding agent that ships code from your terminal, IDE, or CI/CD pipeline. Give it a task in natural language, fix a bug, implement a feature, or review a PR, and it handles the rest. Rechecked 2026-08-21: the first-party repo is github.com/JetBrains/junie with 397 stars, created 2025-04-07. It is positioned as "your real coding buddy" for developers already in the JetBrains ecosystem.

Unlike single-vendor coding agents, Junie lets you choose the model behind it: authenticate with a JetBrains account, a Junie API key, or bring your own key (BYOK) for Anthropic, OpenAI, Google, xAI, OpenRouter, or Copilot.

Key Features

• Terminal-first agent: run junie and describe a task, then let it build a project, analyze a branch, or fix failing tests.
• IDE and CI/CD: integrates with JetBrains IDEs and ships code from CI/CD pipelines, not just the terminal.
• Bring Your Own Key: use your own provider (Anthropic, OpenAI, Google, xAI, OpenRouter, Copilot) or a Junie API key.
• GitHub automation: run /install-github-action so Junie responds to issues, PRs, and CI failures automatically.
• Update channels: run stable, EAP, nightly, or experimental builds with junie --channel=....

Use Cases

• JetBrains users who want a coding agent that works across terminal, IDE, and CI without leaving their toolchain.
• Model-agnostic developers who want to switch LLM providers rather than be locked to one vendor.
• Teams that want agents responding to GitHub issues, PRs, and CI automatically.

Pricing

Pricing follows JetBrains' AI service plans and your chosen provider. Recheck current pricing at junie.jetbrains.com.

Advantages

• LLM-agnostic: choose your model and bring your own key, unlike more single-vendor agents.
• Multi-surface: terminal, IDE, and CI/CD in one agent.
• GitHub-native: automated responses to issues, PRs, and CI failures.

Getting Started

1. Install: curl -fsSL https://junie.jetbrains.com/install.sh | bash (macOS/Linux) or npm install -g @jetbrains/junie.
2. Run junie and authenticate (JetBrains account, API key, or BYOK).
3. Give it a task, such as "Fix the failing tests in the auth module and add a regression test."
4. For GitHub automation, run /install-github-action inside the agent.

Frequently Asked Questions

Is Junie free?

The repo and CLI are open on GitHub; using models through BYOK costs what your provider charges. Recheck current pricing.

Which models can I use?

Anthropic, OpenAI, Google, xAI, OpenRouter, and Copilot are supported through BYOK.

Does it work without the JetBrains IDE?

Yes. Junie is terminal-first and works in CI/CD, so it does not require an IDE.

Alternatives

• Cursor: an AI-first IDE and agent platform.
• Claude Code: Anthropic's terminal coding agent.
• Codex CLI: OpenAI's coding agent in the terminal.

Tips

1. Use junie --eap to try the latest build once without changing your default channel.
2. Set up /install-github-action for hands-off issue and PR handling.
3. Bring your own key to control model choice and cost.

Conclusion

If you live in the JetBrains ecosystem and want one LLM-agnostic agent that works in the terminal, IDE, and CI/CD, Junie is a strong fit. Start at junie.jetbrains.com or github.com/JetBrains/junie.