Twenty gigabytes. That is the file. You download it once, and from there your code never leaves the machine.
Junie is JetBrains' code-writing agent. Until now it ran through the cloud and you paid per token. Now it can run entirely on your own Mac.
Fact
The facts: JetBrains is releasing a local version of the code agent Junie. It runs entirely on the machine, no tokens and no quota, the code never leaves the device. The model is Qwen 3.6-27B, quantized to 4 bits, about 20 gigabytes to download. It requires a Mac with an M5 chip and at least 64 gigabytes of memory. It is free. The features stay the same as in the cloud version: plan mode, live suggestions, custom commands. By JetBrains' own comparisons, the local model performs comparably to Sonnet 4.5 at a 10,000-token reasoning cap, though reasoning is deliberately turned off for speed. Source: the JetBrains blog.
The tasks you get back
The point is the work you keep putting off because cloud credits hurt. Rewriting code. Adding test coverage. Bumping dependencies. Digging through an unfamiliar repo to see how it's put together. Nobody wants to pay per token for these hours, and they're exactly what makes a project bearable six months in.
The agent no longer asks the cloud anything. It only asks the disk.
They state the price straight out, and that's to their credit. It wants the latest chip and a lot of memory, that is, a machine most people don't have. They promise support for less memory and more devices, but that promise has no date yet.
Official primary sources
JetBrains Blog: Junie goes localThe visual is generated code-art, no third-party images.