JetBrains releases open 12B code model and launches repository intelligence layer

Aug 3, 2026 · Issue 1 · 4 sources, 4 articles

JetBrains has open-sourced Mellum2, a 12-billion-parameter code model that it positions for local, private deployment and high concurrency. JetBrains Context is a repository intelligence layer for coding agents, announced in July, with early access for JetBrains AI subscribers.

Who is affected and how

CTO

A locally run model can be a cloud-independent option in privacy-constrained environments.

senior developer

JetBrains Context is worth trying to improve agents' understanding of a repo.

Narrative: Open and Chinese models drive down prices

Sources

• 专打 Claude Code 痛点！JetBrains 开源 12B 代码大模型 Mellum2：主推本地私有化与高并发速度21cto.com · Aug 3, 2026
• JetBrains готовит IntelliJ IDEA к работе с Cursor, Codex и Claude Code через LSP / Хабрhabr.com · Aug 7, 2026
• JetBrains готовит IntelliJ IDEA к работе с Cursor, Codex и Claude Code через LSP | MATETSKIYmatetskiy.ru · Aug 7, 2026
• JetBrains Contextdsebastien.net · Aug 3, 2026

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