JetBrains AI

Trained from scratch and designed for practical deployment, Mellum2 is built for routing, Q&A, sub-agents, and private AI use in software engineering systems. Today, we’re open-sourcing Mellum2, a 12B model engineered to solve the hardest parts of production AI: latency, throughput, and cost.…

The control and execution plane for agent-driven software production.

Introducing recap and insights, two experimental AI features that proactively help you understand recent activity and non-obvious code in your project.

Download Air – free for macOS. Windows and Linux versions coming soon. We hold a principled optimism for agentic software development – and a pragmatic one. After 26 years of building developer tools, we have a clear view of what needs to be built and a strong conviction that agents will fundamen…

Cursor is now available as an AI agent inside JetBrains IDEs through the Agent Client Protocol.

We’re introducing the JetBrains Console, which provides enhanced AI management and analytics for organizations, including new capabilities to manage, observe, and control AI usage and costs across teams.

Step by sten guide on how to bring your custom Koog agent into IDE with native ACP × Koog integration

Together with Zed, we've launched the official ACP Registry: a directory of AI coding agents, integrated directly into JetBrains IDEs.

OpenAI Codex is now natively integrated into the JetBrains AI chat, giving you another powerful option for tackling real development tasks right inside your IDE.  You can use Codex with a JetBrains AI subscription, your ChatGPT account, or an OpenAI API key – all within the same AI сhat inte…

The next edit suggestions feature is now enabled in all JetBrains IDEs for JetBrains AI Pro, AI Ultimate, and AI Enterprise subscribers. Yes, you read that right! JetBrains-native diff suggestions are available right in your editor. Global support for optimized latency. Out-of-the-box IDE actions…

Bring Your Own Key (BYOK) is now available in the AI chat inside JetBrains IDEs as well as for AI agents, including JetBrains’ Junie and Claude Agent. Whether you’re looking to use cutting-edge frontier models, cost-efficient small models, locally hosted private models, or experimental research prev…

Junie is now integrated into the AI chat. The separate interfaces have merged into a single, unified space (available in Beta).