Junie CLI is JetBrains' terminal coding agent, and HagiCode is a desktop and web workbench that runs Junie as its executor. Stay with Junie alone for terminal, IDE and CI work; add HagiCode when you want parallel sessions, spec proposals and managed commits around it.
Junie CLI is JetBrains' agentic coding tool: you run junie in a project directory and give it tasks in a terminal UI. HagiCode is a desktop and web AI programming workbench that drives agent CLIs, Junie among them, as its executor. It does not replace Junie. Junie still does the coding, and HagiCode adds sessions, proposals and commit handling around it.
If you work in a terminal, a JetBrains IDE or CI pipelines and one task at a time is enough, Junie alone is the simpler choice. If you juggle several tasks or repositories and want each change tied to a written proposal, HagiCode is worth adding on top. HagiCode does not sell models; Junie keeps its own sign-in and billing.
| Dimension | Junie CLI | HagiCode |
|---|---|---|
| What it is | JetBrains' LLM-agnostic coding agent for the terminal, IDE and CI | Workbench that runs agent CLIs, Junie included, as executors |
| Interface and platforms | Terminal UI on Linux, macOS and Windows; IDE plugin; GitHub Actions and GitLab CI | Desktop app (Windows, macOS, Linux), Docker Compose container, Microsoft Store edition |
| Pricing and licensing | Billed through a JetBrains plan (free Junie Lite model, AI Pro, AI Ultimate credits), a Junie API key or your own keys; see JetBrains' pricing page | Desktop and Container free; Store edition free with optional one-time TurboEngine purchase; model cost stays with Junie |
| Model and provider access | Default model, or BYOK: OpenAI, Anthropic, Google, xAI, OpenRouter, GitHub Copilot, custom endpoints (LiteLLM, Ollama, LM Studio) | Hosts no models; uses whatever Junie is signed in to; optional OmniRoute routing |
| Parallel work | One session per terminal or CI job; you coordinate parallel runs yourself | Several sessions at once, each a named Agent with visible status |
| Spec and planning workflow | Plan mode writes a design document from read-only analysis | OpenSpec proposals: propose, validate, apply, archive (3 concurrent free, 32 with TurboEngine) |
| Git and commit handling | /review inspects changes in a Git repository; --review for CI | AI-composed commit messages with the repository locked during the commit; Git and GitHub integration |
| Setup effort | One install command, then sign in | Desktop install, plus Junie installed and signed in first |
| Best for | Developers who want a JetBrains-backed agent in terminal, IDE or CI | People running several agent tasks or repositories with traceable specs |
Junie runs interactively in the terminal, as an IDE plugin, and headless in GitHub Actions and GitLab CI. A CI step can be as short as junie --auth="$JUNIE_API_KEY" "Fix any failing tests", or --review for a code review. You learn one tool and use it in all three places.
Junie signs in three ways: a JetBrains account, a Junie API key with usage-based billing, or your own keys from providers such as OpenAI, Anthropic, Google, xAI, OpenRouter and GitHub Copilot. Custom endpoints such as LiteLLM, Ollama and LM Studio also work. JetBrains states that BYOK usage is billed at provider rates with no markup, and effort levels are available for models that support them.
Brave mode has three levels: Off asks before sensitive actions, Auto approves commands classified as safe, On runs them without asking. Sandbox mode (Early Access) wraps terminal commands in an OS-level sandbox on macOS and Linux. Plan mode produces a design document from read-only analysis, and Debug mode works with a connected JetBrains IDE.
You can run another channel for a single launch, for example junie --eap or junie --nightly, without changing your installed default. JetBrains announced Junie CLI as a beta in March 2026; current docs do not state a status, so check junie.jetbrains.com before relying on it for production CI.
--review or a headless task;HagiCode is a workbench on top of the CLI. It starts junie in ACP mode inside the repository you open, so your own Junie install and sign-in do the work. HagiCode has no Junie credential fields and adds no model billing.
Nothing is locked in: Junie stays a normal install that you can still run in any terminal.
curl -fsSL https://junie.jetbrains.com/install.sh | bash; Windows: the PowerShell installer on the Junie docs page), then run junie once and sign in.junie in the same directory; your Junie install and sign-in are untouched.Run several Junie sessions side by side, each with its own context, and see which Agent is running, waiting or finished. Without HagiCode that means several terminals you track yourself.
Each task can start as a proposal that Junie implements within agreed constraints. Plan mode gives you a design document inside one session; a proposal keeps the reasoning, discussion and code changes together and archivable across sessions.
HagiCode drafts the commit message from your diff and locks the repository while committing. The embedded Code Server lets you open the file Junie edited and adjust it without leaving the workbench.
Monospecs declares sub-repositories in .hagicode/monospecs.yaml so Junie sees the whole change surface. Vault registers reference projects and notes once and injects them into new proposals.
OmniRoute can route model traffic centrally when Junie is configured to use it. Junie's tool calls appear in the same typed view as every other agent, and the optional TokenMonitor integration shows today's tokens and cost in the status bar.
curl -fsSL https://junie.jetbrains.com/install.sh | bash, then cd into your project and run junie. Windows uses a PowerShell installer listed on the Junie docs page; Homebrew and npm (@jetbrains/junie) are alternatives in the repository README.HagiCode ist ein agentischer Coding-Arbeitsplatz: OpenSpec-Workflows planen die Änderung, Multi-Agent-Ausführung setzt sie um, und Hero Dungeon macht den langen Weg sichtbar, bis aus der Idee ausgelieferte Software wird.
Mit einem intelligenteren, schnelleren und unterhaltsameren agentischen Workflow wird aus Ideen nutzbare Software.
HagiCode ist ein agentischer Coding-Arbeitsplatz: OpenSpec-Workflows planen die Änderung, Multi-Agent-Ausführung setzt sie um, und Hero Dungeon macht den langen Weg sichtbar, bis aus der Idee ausgelieferte Software wird.
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