CodeGeeX
Free open-source multilingual AI coding assistant from Zhipu AI.
About
CodeGeeX is a free, open-source (Apache 2.0) AI coding assistant developed by Zhipu AI with roots in Tsinghua University research. Built on the CodeGeeX4-ALL-9B model with 128K context, it offers code completion, generation, explanation, and unit-test creation across 100+ languages, plus a standout cross-language translation engine that converts functions between Python, C++, Java, JavaScript, Go, and Rust. With over a million users, it is one of the most widely adopted free coding assistants, with plugins for VS Code, JetBrains, and Visual Studio.
The honest caveat: as a China-originated tool, teams with strict data-sovereignty requirements should review where cloud requests are processed. Documentation skews toward Chinese-language resources in places, and the free cloud tier's long-term limits are not clearly published.
What it can do
- Code completion and generation in 100+ languages
- Cross-language code translation with semantic accuracy
- Code explanation and automatic documentation
- Unit test generation and bug fixing
- 128K context with cross-file analysis
Setup
Install the CodeGeeX extension from the VS Code Marketplace or JetBrains plugin repository. Sign in with an email for the free cloud tier, or self-host the open model weights.
Prerequisites
A supported IDE. Email signup for cloud features; GPU for self-hosting.
Use cases
Works with
Trust score — 7/10
Scored 7/10 (metrics tier, metrics-v1). Evidence: Verified via vendor site/docs/GitHub and reputable coverage, wave 44 (tools-a); Trending score 70/100 from researcher assessment.
Sources
Every fact above was checked against these sources. Where a claim comes from the provider and couldn't be independently verified, the text says so.