CodeGeeX
codegeex.cn
Multilingual code generation model and IDE extension.
Quick Information
- Category:
- Coding
- Pricing:
- Free
- Platforms:
- Windows, macOS, Linux
- Free Plan:
- Yes
- Last Verified:
- September 2026
What Is CodeGeeX?
CodeGeeX is a free, open-source AI coding assistant built on a 13-billion-parameter multilingual code model developed by THUDM at Tsinghua University, bundling code completion, inline chat, code review, test generation, and repo-aware Q&A into a single plugin at zero cost. It supports more than 100 programming languages and has surpassed 1.1 million installs on the VS Code marketplace, a meaningful adoption number for a fully free alternative to paid tools like GitHub Copilot.
Its genuinely notable positioning in the AI coding assistant market is being one of the only tools bundling this full feature set — completion, chat, review, and test generation — without any subscription fee at all, where most comparable commercial tools charge $10-20+/month for similar functionality. Being open-source also means the underlying model and approach are inspectable rather than a black box, appealing to developers and organizations wary of vendor lock-in with closed commercial alternatives.
It's aimed at developers wanting a genuinely free, full-featured AI coding assistant, particularly those working across many programming languages or wary of ongoing subscription costs for coding tools. See our Coding tools directory for comparable paid alternatives like GitHub Copilot and Cline.
What Can You Use CodeGeeX For?
Free AI code completion
Provides AI-powered code completion across 100+ programming languages at no cost.
Inline AI chat and code review
Offers inline chat and code review functionality directly in the editor.
Automated test generation
Generates tests for existing code using AI.
CodeGeeX Features
- 13B-parameter multilingual code model — Powers code completion and generation across more than 100 programming languages.
- Inline AI chat — Provides conversational AI assistance directly within the code editor.
- Repo-aware Q&A — Answers questions about a codebase with awareness of the broader repository context.
- Free test generation and code review — Generates tests and reviews code changes without any subscription fee.
Who Is CodeGeeX For?
- Developers wanting a free AI assistant — Gets a full-featured coding assistant without any subscription cost, unlike most commercial alternatives.
- Multilingual codebases — Uses a model supporting more than 100 programming languages.
CodeGeeX Pros & Limitations
What We Like
- Genuinely free — bundles completion, chat, review, and test generation with no subscription fee
- Open-source model and approach, avoiding vendor lock-in concerns
- Strong adoption — over 1.1 million VS Code installs
- Broad language support across more than 100 programming languages
Limitations
- A 13B-parameter model is smaller than some frontier commercial coding models, which may affect output quality on complex tasks
- Community and academic backing (THUDM/Tsinghua) means less commercial support infrastructure than a funded startup product
- Less brand recognition than established paid tools like GitHub Copilot
CodeGeeX Pricing
Free
Pricing was last verified September 2026. Check the official website for the latest pricing.
AI Listing Jungle Ranking
- Global Rank:
- #544
- Overall Score:
- 33.1/100
- Monthly Users:
- –
- Rank Change:
- ▲ 4
This ranking reflects AI Listing Jungle's own independent scoring methodology and is not an endorsement by CodeGeeX or its company. How Our Rankings Work
Frequently Asked Questions
Is CodeGeeX really free?
Yes, it’s a fully free, open-source AI coding assistant with no subscription fee.
How many languages does CodeGeeX support?
More than 100 programming languages.
Who built CodeGeeX?
THUDM at Tsinghua University, using a 13-billion-parameter multilingual code model.
What features does CodeGeeX include?
Code completion, inline chat, code review, test generation, and repo-aware Q&A, all bundled into one plugin.
Our Take
CodeGeeX stands out by bundling a genuinely complete AI coding assistant feature set — completion, chat, review, testing — without charging a subscription fee at all.
Its academic open-source backing means less polish and commercial support than funded competitors, but its adoption numbers show real developer trust in the free model.
CodeGeeX Alternatives
CodeGeeX Comparisons
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