If you’re a developer, you probably already know that artificial intelligence is revolutionizing the way we write code.

But among so many AI coding assistants available, one name stands out in the open-source world: CodeGeeX.

But is CodeGeeX really the best open-source AI for developers? Does it hold up against giants like GitHub Copilot, ChatGPT, and other proprietary tools?

In this extremely detailed review, I’ll analyze everything you need to know about CodeGeeX, from its features to its performance, and even how it compares to its competitors. I’ll try not to delay any longer, because this is the ultimate guide! 🚀

🔥 What is CodeGeeX?

A Powerful Open-Source AI for Coding

CodeGeeX is an AI-powered code generation model developed by Tsinghua University and supported by China’s Academy of Engineering.

It’s a massive model trained with 13 billion parameters and optimized for multiple programming languages.

Unlike GitHub Copilot, which relies on OpenAI’s proprietary technology, CodeGeeX is fully open-source, allowing developers to tweak, customize, and even self-host the model if they wish.

Key Features of CodeGeeX

💡 Multi-Language Support – CodeGeeX supports more than 20 programming languages, including Python, JavaScript, C++, Java, and more.

🚀 Code Completion & Generation – The AI can auto-complete code snippets and even generate entire functions based on comments or prompts.

🔍 Intelligent Debugging – It helps detect syntax errors and suggests fixes in real time.

🌎 Open-Source & Customizable – Developers can access the model, modify it, and even fine-tune it for specific tasks.

🛠 Compatible with VS Code & JetBrains – It integrates smoothly with popular IDEs, making it accessible for developers of all levels.

🆚 Offline Usage – Unlike GitHub Copilot, which requires an internet connection, CodeGeeX can be self-hosted and used offline.

Where Can You Download CodeGeeX?

If you’re excited to try CodeGeeX, you can access it from its official GitHub repository or use it through VS Code’s extension marketplace.

🆚 CodeGeeX vs. GitHub Copilot vs. ChatGPT: Which One is Better? 🤔

One of the biggest questions when choosing an AI-powered coding assistant is: How does it compare to the competition? Let’s break it down:

1. Code Completion & Accuracy

• GitHub Copilot excels in accuracy and speed because it is powered by OpenAI’s GPT models and is optimized specifically for software development.
• ChatGPT 4 is useful for generating explanations and problem-solving but isn’t as optimized for direct code completion.
• CodeGeeX provides a balance between customization, accuracy, and speed, making it the best choice for developers who prefer open-source solutions.

2. Pricing 💰

One of the biggest advantages of CodeGeeX is that it’s completely free and open-source.

• GitHub Copilot costs $10/month (or $100/year for individuals) and requires a subscription.
• ChatGPT Plus (which gives access to GPT-4) costs $20/month.
• CodeGeeX is the best budget-friendly option for developers who want an AI-powered assistant without spending money.

3. Customization & Open-Source Flexibility

Unlike GitHub Copilot and ChatGPT, CodeGeeX allows developers to modify and fine-tune the AI model, making it a great tool for those who want complete control over their coding assistant.

📢 Want to see more AI-powered tools? Check out my article on The Best AI Tools for Business Growth in 2025!

✅ Pros & Cons of CodeGeeX

✅ Pros:

✔️ Completely free & open-source ✔️ Supports over 20 programming languages ✔️ Works offline (self-hosted version) ✔️ Highly customizable for advanced users ✔️ No subscription required

❌ Cons:

❌ Slightly less accurate than GitHub Copilot ❌ Setup can be tricky for non-technical users ❌ Lacks deep integration with GitHub repositories

🤔 Should You Use CodeGeeX? My Honest Opinion

If you’re a developer who loves open-source tools and wants a free AI-powered coding assistant, then CodeGeeX is an amazing choice.

It’s not as polished as GitHub Copilot, but it offers more flexibility and customization. Plus, if you’re working on privacy-sensitive projects or need an offline AI assistant, CodeGeeX is the way to go.

I think this is dispensable if you are good at sourcing the things you need, if not, absolutely test it.

🔗 Want more AI-powered coding tools? Check out Can AI Code Better Than Humans?

📌 FAQs (Click the arrows to expand!)

➡️ Is CodeGeeX completely free?

✅ Yes! CodeGeeX is 100% free and open-source, meaning you can use it without paying anything.

➡️ Can I use CodeGeeX offline?

✅ Yes! You can self-host CodeGeeX and use it offline, which is a huge advantage over GitHub Copilot.

➡️ How does CodeGeeX compare to GitHub Copilot?

✅ CodeGeeX is more customizable, free, and supports more languages, but Copilot is more accurate and easier to use out of the box.

➡️ Where can I download CodeGeeX?

✅ You can find it on GitHub or install its VS Code extension.

💬 What do you think about AI-powered coding tools? Have you tried CodeGeeX? Comment below and share your thoughts! 🧑‍💻

📢 If you found this article helpful, don’t forget to share it with your fellow developers! 🚀