Use Third Party LLM API in JetBrains AI Assistant

In plain words

This JetBrains AI Assistant plugin enables developers to use third-party large language model APIs instead of the built-in options. It integrates external LLM providers into the JetBrains IDE environment, giving programmers flexibility in choosing their preferred AI model for code assistance, completion, and analysis tasks. The tool is designed for developers who want to leverage specific LLM services while working in JetBrains IDEs.

written from the facts on this page · September 2026

From the sources

Proxy remote LLM API as Local model. Especially works for using custom LLM in JetBrains AI Assistant. Powered by Ktor and kotlinx.serialization. Thanks to their no-reflex features. Currently, JetBrains AI Assistant provides a free plan with very limited quotes. I tried out and my quote ran out quickly. I already bought other LLM API tokens, such like Gemini and Qwen. So I started to think of using them in AI Assistant. Unfortunately, only local models from LM Studio and Ollama are supported. So I started to work on this proxy application that proxy third party LLM API as LM Studio and Ollama API so that I can use them in my JetBrains IDEs. This is Just a simple task, so I started to use the…from github.com

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