Gemini 3 Pro Is Now Available in JetBrains IDEs

Anna Maltseva

The latest AI model from Google, Gemini 3 Pro, is now live in JetBrains IDEs. From day one, it powers AI Chat and soon will be available in Junie, our coding agent, giving you smarter reasoning, stronger instruction following, and seamless integration into your workflow.

What’s new

Gemini 3 Pro shows clear improvements that matter in day-to-day development:

• Understands your codebase and adapts to your style. Gemini 3 Pro learns from your code to replicate your project’s conventions, so changes feel native to your repository and pass review with fewer edits.
• Follows instructions precisely. Built to reason across text, code, and visuals, Gemini 3 Pro understands complex prompts and long documents and delivers more accurate results.
• Excels at frontend development. Gemini 3 Pro shows major progress in multimodal frontend generation and complex UI work.

Overall, it’s strong at planning and executing multi-step tasks, handling complex instructions, and reasoning across multiple contexts – helping you move from idea to production-ready code faster.

See Gemini 3 Pro and Junie in action

To demonstrate how Gemini 3 Pro and Junie handle real creative workflows, we built a full landing page experience starting from nothing but a sketch. We uploaded the sketch, provided a detailed prompt, and let Gemini 3 Pro interpret the structure, layout, and visual hierarchy.

Using these instructions, Junie, our coding agent, generated the first functional version of the landing page. The output included a clean layout, responsive sections, and components directly inferred from the sketch.

Next, we asked Gemini 3 Pro and Junie to refine the page and “make it fancy”, transforming the rough structure into a polished, interactive design inspired by modern AI product websites like Adaline.ai. The agent applied animations, smooth transitions, and an elevated visual style while keeping the original structure intact. This clearly shows Gemini 3 Pro’s strong multimodal understanding and Junie’s ability to turn raw ideas into production-ready interfaces. See the result below:

How to try Gemini 3 Pro in your IDE

To access Gemini 3 Pro, you’ll need an active JetBrains AI subscription. If you don’t have one, you can start a free trial directly from your IDE – open the JetBrains AI widget in your IDE, start the installation, and follow the on-screen instructions. Once activated, you can try it in the AI Chat. Junie integration is on the way. Stay tuned!

Give it a try and let us know what you think in the comments!

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