The complete guide to the JetBrains AI ecosystem

News|28 January 2026

AI is no longer a nice-to-have for development teams. It’s reshaping how you write, test and maintain code every day. JetBrains is one of the vendors pushing that shift furthest – and doing it directly inside the tools you already trust.

JetBrains has evolved far beyond their productivity helpers like basic code inspections or autocompletion. Today, they offer an integrated, feature-rich AI ecosystem to help you enhance your productivity while remaining fully in control of your workflow.

What Is JetBrains AI?

JetBrains AI is a full suite of intelligent tools integrated directly into your IDEs, working together to deliver context-aware coding assistance, automated multifile transformations, autonomous agent execution, and enterprise-grade AI governance.

With tools like AI Assistant, Junie, Matter, Koog and more, JetBrains combines local and cloud-based LLMs with retrieval-augmented generation (RAG) to deliver an AI experience deeply tied to project context. Where generic AI assistants fall short, JetBrains’ AI tools thrive.

Your companion for intelligent AI coding: AI Assistant

AI Assistant is the centrepiece of the ecosystem, as the most widely used JetBrains AI tool. It’s designed to slot into your day-to-day coding with features like smart code completion, natural language reasoning, cross-language code translation and multi-file code changes.

What really sets it apart is its deep awareness of your codebase. Because it understands relationships, architecture and project structure, its suggestions feel less like generic snippets and more like practical next steps in your environment.

See below how JetBrains AI Assistant works within your IDEs:

Junie - the autonomous AI coding agent

Junie is JetBrains’ groundbreaking autonomous agent, capable of performing development tasks inside the IDE.

Execute tasks. Read, write and modify files. Run shell commands. Unified AI chat environment. Junie takes a major step towards truly automated development workflows – giving you back the time you’d usually lose to repetitive tasks.

Functioning as a virtual teammate, Junie can handle your routine coding tasks and refactoring, freeing you up to focus on architecture and creative problem solving.

JetBrains have shown just how straightforward it is to build applications with Junie:

Empower your product teams with AI Matter

Matter is designed for building prototypes directly in the codebase, even with minimal coding. It enables product teams to test ideas using real project data and skip the translation layer between design tools and engineering.

Matter is ideal for product management, UX design, and rapid concept validation. By keeping all generated artifacts in the codebase, it makes iteration seamless.

Build agents in Kotlin with Koog

If you’re building intelligent automation into your Kotlin projects, Koog gives you a head start. It’s an open-source agentic framework designed for context-aware, multi-step workflows.

Koog is natively integrated into Kotlin and JetBrains wider tool catalogue, making it much more accessible than building agents from scratch. From automated testing agents to documentation bots, CI/CD intelligence and coding educators or linters, Koog has broad utility.

Control governance and LLMs for code with Medium

Mellum, JetBrains’ own large language model (LLM), optimised for code completion. For fast, highly accurate responses, Mellum is a great tool.

On the governance and security side of things, AI Enterprise gives you control over your organisation’s AI usage (including specific LLMs your team may be using), budget and compliance, crucial for highly regulated industries or large teams.

Combining the two, you get an LLM you can trust, capable of being integrated with external models like OpenAI GPT-4.1 and Gemini 2.5 Pro, and the tools to monitor your environment to ensure your security isn’t at risk.

What makes JetBrains AI different?

You’re not short of options for AI tools promising to make your daily work life so much easier. But what sets JetBrains apart is the philosophy behind their tools. They aren’t treated as plugins, but as a first-class part of your IDEs.

What this means for you is that you have a cohesive user experience, seamless interaction with refactoring and navigation tools, context understanding across your projects, and greater accuracy. All of this adds up to a higher quality experience for developers like you.

Huge productivity boosts. Reduced context switching. Better document onboarding. Developers have spoken, and JetBrains is the home for AI.

By adding AI to their IDEs, JetBrains has built an entire AI ecosystem to support you through every stage of your development.

Code completions. Autonomous task execution. Secure governance. Whatever you’re hoping to gain from AI, JetBrains has a solution to support your workflow.

Is JetBrains AI right for you?

AI is becoming foundational to modern software development. With JetBrains, you can move confidently into the world of AI. Build smarter, faster, and make every part of your workflow work harder for you, so you can focus on what’s important. Get in touch using the form below to find out how JetBrains AI solutions can integrate with the tools you use every day.

28 January 2026 | News

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