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Junie

Updated: Sep 18, 2026

A cost-efficient AI coding agent that plans on premium models, implements on fast ones, and works with any model via bring-your-own-key.

Junie

About Junie

Overview

Junie is an AI coding agent by JetBrains that runs from your terminal. It works with any AI model you choose, letting you plan on a premium model and implement on a fast one for the same quality at a fraction of the cost. The agent is free to start, with no card or subscription required.

Junie is powered by the IntelliJ IDEA engine and ranks as a top performer on SWE-Rebench. It supports 10+ models through bring-your-own-key (BYOK), including locally running models.

Key Benefits

  • Plan on a premium model and implement on a fast one for the same quality at a fraction of the cost
  • Free to start with 5 AI credits, no card or subscription required
  • Works with any model you choose, including locally running models via BYOK
  • Top performer on SWE-Rebench, powered by the IntelliJ IDEA engine
  • Runs on Mac or Linux and Windows from a single curl install
  • Gemini 3.8 Flash at 75% off base pricing for a limited time

How It Works

Open your terminal and paste the install command to get Junie running. Use Advanced Plan Mode to produce structured requirements, design, and delivery stages before the agent touches code, then approve or redirect the plan. Steer the agent live as it works, confirm key actions, and start a task on your laptop while monitoring progress from your phone.

Use Cases

  • Developers running Spring Boot upgrades and large migrations with Remote Control's async CLI and web app monitoring
  • Engineering teams that encode coding standards, naming conventions, and review rules into persistent guidelines
  • Developers who plan on a top-tier model and implement on a cheaper model to control spend
  • Teams reviewing and approving agent actions through the human-in-the-loop dynamic allowlist
  • Organizations adopting JetBrains AI Pro or AI Ultimate subscriptions for coding agents and AI chat
  • Developers switching from another AI coding agent in seconds with minimal setup

Why Choose This Product

Junie competes on cost and control. BYOK delivers provider-rate pricing with zero markup, while Advanced Plan Mode, Live Prompting, and human-in-the-loop review keep you in charge. JetBrains tools hold SOC 2 certification, and Junie adds test coverage as it works.

Junie Pros & Cons

Strengths
  • Free to start with 5 AI credits and no card required
  • Supports 10+ models via BYOK, including locally running models
  • Top performer on SWE-Rebench, powered by the IntelliJ IDEA engine
  • SOC 2 certified with industry security standards
  • Cross-platform CLI for Mac, Linux, and Windows
Limitations
  • Free tier bills AI usage separately

Key Features

📋

Advanced Plan Mode

Writes structured plan requirements, design, and delivery stages before touching code, saving plans to .junie/plans for editing and committing.

🎛️

Live Prompting

Lets you steer the agent mid-task and change direction without starting over, with real-time course correction.

👤

Human in the Loop

Lets you review, approve, and steer key actions through a dynamic allowlist with user-confirmed execution.

📱

Remote Control

Runs migrations asynchronously from your laptop with progress monitoring on your phone and PR review via CLI and web app.

⚙️

Custom Guidelines & Skills

Teaches Junie team coding standards, naming conventions, and review rules that persist across sessions, shared between CLI and IDE via ACP.

🔑

Bring Your Own Key

Uses any AI model with provider-rate pricing and zero markup, including locally running models.

💻

Single-Command Install

Installs from a terminal with one curl command on Mac, Linux, or Windows.

Free to Start
Free
  • 5 AI credits included, enough for a real task
  • Bring Your Own Key with provider-rate pricing and zero markup
  • Works with any AI model, including locally running models
  • AI usage billed separately
AI Pro
$8.33/mo
  • 10 AI credits per 30 days
  • Anytime top-ups
  • AI-assisted coding and extensive usage of the AI chat
  • Option to try Junie, the AI coding agent by JetBrains
Most popular
AI Ultimate
$25/mo
  • 35 AI credits per 30 days
  • Anytime top-ups
  • Higher cloud credit limit for more frequent use of coding agents
Compare plans
Feature
Free to Start
Free
AI Pro
$8.33/mo
AI Ultimate
$25/mo
5 AI credits included, enough for a real task
Bring Your Own Key with provider-rate pricing and zero markup
Works with any AI model, including locally running models
AI usage billed separately
10 AI credits per 30 days
Anytime top-ups
AI-assisted coding and extensive usage of the AI chat
Option to try Junie, the AI coding agent by JetBrains
35 AI credits per 30 days
Higher cloud credit limit for more frequent use of coding agents

Pricing extracted from the product website and may change. Check the source for current details.

Frequently asked questions about Junie

Is Junie free to start?

Yes. Junie is free to start with 5 AI credits included, enough for a real task, and requires no card or subscription. AI usage is billed separately, and you can bring your own key for provider-rate pricing with zero markup.

Which AI models can Junie work with?

Junie supports 10+ models via bring-your-own-key, including Claude Opus 5, Claude Sonnet 5, Claude Fable 5.1, Gemini 3.1 Pro, Gemini 3.8 Flash, GPT-6 ASTRA, and Grok 4.6. It also supports locally running models.

How do I install Junie?

Open your terminal and run the install command: curl -fsSL https://junie.jetbrains.com/install.sh | bash. Junie runs on Mac or Linux and Windows.

What do the AI Pro and AI Ultimate subscriptions include?

AI Pro costs $8.33 per user per month and includes 10 AI credits per 30 days with anytime top-ups. AI Ultimate costs $25.00 per user per month and includes 35 AI credits per 30 days for more frequent use of coding agents.

Does Junie work with my existing workflows?

Junie CLI works with the terminal, your IDE, GitHub, and GitLab. You can switch from other AI coding agents in seconds with minimal setup and no workflow disruption.

Can I control what Junie does?

Yes. Advanced Plan Mode writes structured plan requirements, design, and delivery stages before touching code, and you approve or redirect. Human-in-the-loop review lets you approve and steer key actions with a dynamic allowlist.