Junie

About

Junie is JetBrains' AI coding agent. Its site calls it "the most cost efficient coding agent" that "works with any model you choose", and it runs from the terminal, inside JetBrains IDEs, and from GitHub and GitLab pipelines. It is built on the IntelliJ IDEA engine. As of November 2026 the site announces "Junie Lite", a free AI layer with no trial and no card, and sells paid usage through JetBrains AI Pro at $8.33 per user per month and AI Ultimate at $25.00 per user per month. It belongs with the agent tools on our best AI coding assistant page and our AI coding assistants collection. What Junie does • Junie CLI: the JetBrains repository describes Junie as an LLM-agnostic AI coding agent that runs in your terminal, integrates with your IDE and CI/CD pipelines, and handles tasks described in natural language, such as fixing bugs, implementing features or reviewing pull requests. The documentation describes Junie CLI as "a command-line AI agent that helps you write code". • Install: the repository README lists a curl install script for macOS and Linux, a PowerShell script for Windows, Homebrew (brew tap jetbrains-junie/junie, then brew install junie) and npm (npm install -g @jetbrains/junie). Update channels (--eap, --nightly, --experimental, --release) can be chosen for a launch, with optional version pinning. • Sign in options: a JetBrains Account, a Junie API key, or bring your own key. The README names Anthropic, OpenAI, Google, xAI, OpenRouter and Copilot as bring-your-own-key providers. • Models: the site says it supports 10 or more models through bring your own key. The model list on the homepage names Claude Opus 5.5, Claude Sonnet 5.5, Claude Fable 5.1, Gemini 4 Argon, Gemini 3.8 Flash, GPT-6 ASTRA, GPT-6.1 SOL and Grok 4.7. The suggested workflow is to plan with a powerful model and implement with a fast one. • Advanced Plan Mode: the site says Junie writes requirements, design and delivery stages before changing code, and you approve or redirect. Plans are saved in .junie/plans and can be edited and committed, and you can plan and implement on different models. • Live Prompting: steer the agent while it works. The site labels it an exclusive feature. • Human in the loop: review and approve key actions, with a dynamic allowlist and confirmation before execution. • Remote Control: asynchronous execution through the CLI with monitoring in a web app. The site says it suits tasks such as Spring Boot upgrades and migrations. • Guidelines and skills: persistent team guidelines and Agent Skills packages, with slash commands shared between the CLI and the IDE through ACP. • Pipelines: a GitHub Action to run Junie from issues and pull requests (the README says /install-github-action sets it up so Junie can respond to issues, PRs and CI failures), and GitLab CI/CD, which the site says runs AI tasks from GitLab issues or merge requests. • In the IDE: under "Air in IDEs" the site says to use the IDE's full code intelligence and tooling you already rely on, and that Junie runs across multiple projects. It names no specific IDEs on that page. • Migration from other agents: the site says you can switch from other AI coding agents "in seconds" with minimal setup. Pricing (as of November 2026) • Free to start, Junie Lite: a free model that is always on in every JetBrains account, with no trial and no card. The site lists "Provider-rate pricing, zero markup" for bring your own key, and the free card says it supports locally running models. AI usage is billed separately. • AI Pro: $8.33 per user per month. Includes 10 AI Credits per 30 days and anytime top-ups. The site describes it as AI-assisted coding and extensive usage of the AI chat, plus the option to try Junie. • AI Ultimate: $25.00 per user per month. Includes 35 AI Credits per 30 days and anytime top-ups, marked "Recommended for Junie". • One subscription: the plans are sold as a single JetBrains AI subscription. The pricing display has a monthly or annual billing toggle, and we could not confirm which billing period the displayed figures reflect. Who it suits • Developers who already work in IntelliJ-based IDEs and want an agent that uses the IDE's code intelligence. • Teams that want to run an agent from GitHub or GitLab issues and pull requests. • People who want to bring their own model key and avoid a markup on inference. • Teams that value saved, editable plans before code changes. Limitations to know • Junie is a coding agent for developers, not a no-code app builder. • The repository README states "© JetBrains s.r.o. All rights reserved" and says use is subject to the JetBrains AI Service terms. • Benchmark placement ("a top performer on SWE-Rebench") is JetBrains' own statement, and we have not verified it. • AI Credits are a metered allowance, so heavy use may need top-ups. • The credit cost of a typical Junie task is not stated on the pages we read. FAQs What is Junie? JetBrains' AI coding agent, available as a CLI, in IDEs and in GitHub and GitLab pipelines. Is Junie free? The site announces Junie Lite, a free AI layer with no trial and no card, always on in every JetBrains account. You can also bring your own key and pay your provider directly. How much does Junie cost? As of November 2026 the site lists AI Pro at $8.33 per user per month with 10 AI Credits per 30 days, and AI Ultimate at $25.00 per user per month with 35 AI Credits per 30 days. Which models does Junie use? It works with any model you choose through bring your own key, and the homepage names models from Anthropic, Google, OpenAI and xAI. Does it work on Windows? The README lists a PowerShell install script for Windows, alongside macOS and Linux installs. Does it work with GitHub? Yes. The README describes a GitHub integration for issues, pull requests and CI failures, and the site lists a GitHub Action. What we could not verify • Which billing period the displayed AI Pro and AI Ultimate prices reflect, and any VAT treatment. • Which JetBrains IDEs Junie supports, because the pages we read do not list them. • The usage limits of the free Junie Lite layer and which model it uses. • The number of credits a typical task consumes. • The licence terms in the repository LICENSE file, whose contents we could not read. • Independent confirmation of the benchmark claim. How this listing was put together This listing is based on Junie's own site, its JetBrains GitHub repository README and its documentation page metadata. Facts verified on 7 November 2026. Sources • Junie homepage • Junie on GitHub • Junie documentation