Code with GPT-4o in VS Code
Access OpenAI's GPT-4o model directly in your IDE. Generate code, debug errors, and architect systems with the most capable AI coding assistant available through CodeGPT. Get the power of ChatGPT right in your development environment.
Get GPT-4o in your IDE • Free to start • BYOK available
What is GPT-4o for Coding?
GPT-4o is OpenAI's multimodal AI model that excels at software development. Now you can access it directly in your IDE through CodeGPT.
GPT-4o Overview
- October 2025 Status: GPT-5 is now available, but GPT-4o remains popular for proven reliability
- Multimodal: "Omni" model handles text, code, and images
- Languages: 50+ programming languages supported
- Context: 128K token context window
Why Choose GPT-4o in CodeGPT?
- Proven Track Record: Extensively tested and documented
- Cost Effective: Lower cost than GPT-5
- Strong Reasoning: Excellent for complex logic
- BYOK Available: Use your own OpenAI API key
Note on "GPT-4o-code": Many users search for "gpt-4o-code" thinking it's a separate model. It's not—this refers to using GPT-4o for coding tasks. CodeGPT gives you access to the full GPT-4o model optimized for code generation.
GPT-4o Capabilities in CodeGPT
Unlock the full power of GPT-4o for software development
Auto-complete with GPT-4o
Context-aware code completion powered by GPT-4o's 128K context window. Get intelligent suggestions that understand your entire codebase, not just the current file.
Agent Mode: Planning, To-Do Lists & Multi-file Editing
Let GPT-4o's powerful reasoning capabilities plan complex features, break them into tasks, and execute changes across your entire project autonomously.
Planning Mode
GPT-4o analyzes requirements and designs comprehensive implementation plans
To-Do Lists
Break complex features into actionable, prioritized tasks
Multi-file Editing
Refactor across files with understanding of dependencies
Code Generation
Generate functions, classes, entire modules, and boilerplate code with GPT-4o's deep understanding
Debugging
Get detailed error explanations, root cause analysis, and fix suggestions from GPT-4o
Code Review
Get quality suggestions, performance optimizations, and best practice recommendations
Code Explanation
Understand complex codebases with GPT-4o's natural language explanations
Multilingual
Support for 50+ programming languages including Python, JavaScript, Java, C++, Go, Rust, and more
Documentation
Generate comprehensive documentation, comments, and README files
GPT-4o vs Other AI Models
How GPT-4o compares to other leading AI models for coding
GPT-4o vs GPT-5
GPT-5 is newer with enhanced capabilities, but GPT-4o offers proven reliability, extensive community knowledge, and lower cost. Best for: production applications where stability matters.
GPT-4o vs Claude Sonnet 4.5
Both are excellent for coding. Claude has a larger 200K context window, while GPT-4o excels at following detailed instructions and has more extensive fine-tuning. Best for: instruction-following tasks and complex reasoning.
GPT-4o vs Gemini 2.5 Pro
Gemini 2.5 Pro has a massive 1M token context, while GPT-4o has broader adoption and more tooling. Best for: general-purpose coding with strong documentation support.
When to Choose GPT-4o
- • Complex reasoning tasks
- • Following detailed specs
- • Documentation generation
- • Proven reliability
- • Lower cost
- • Extensive community
- • Production code
- • API integrations
- • Legacy refactoring
GPT IDE Integration Guide
Get GPT-4o running in your favorite IDE with CodeGPT
VS Code Integration
- 1 Install the CodeGPT extension from VS Code marketplace
- 2 Open settings and select GPT-4o from model list
- 3 Optional: Add your OpenAI API key for BYOK
- 4 Start using chat, autocomplete, and agent mode!
JetBrains Integration
- 1 Install CodeGPT plugin from JetBrains marketplace
- 2 Configure GPT-4o in plugin settings
- 3 Connect your OpenAI API key if using BYOK
- 4 Access GPT-4o via chat panel and inline suggestions
BYOK: Bring Your Own Key
Want full control over costs and usage? Connect your own OpenAI API key to use GPT-4o directly.
Frequently Asked Questions
What is GPT-4o and how is it different from GPT-5?
GPT-4o (the "o" stands for "omni") is OpenAI's multimodal AI model released in 2024. While GPT-5 is now available (October 2025) with enhanced capabilities, GPT-4o remains a popular choice for proven reliability, extensive documentation, and cost-effectiveness. GPT-4o excels at reasoning, complex logic, and generating high-quality code across 50+ programming languages.
How do I use GPT-4o in CodeGPT?
Install the CodeGPT extension in VS Code or JetBrains IDE, open settings and select GPT-4o from the model list (or connect your OpenAI API key for BYOK), then use the chat interface for conversations, enable autocomplete for inline suggestions, or activate agent mode for autonomous multi-file operations.
What are GPT-4o's coding capabilities?
GPT-4o's coding capabilities include: code generation across 50+ languages, intelligent debugging and error fixing, code explanation and documentation, architecture design and planning, test generation, code refactoring, API integration code, and complex algorithm development. It excels at understanding large codebases and maintaining context.
Can I use GPT-4o with my own OpenAI API key (BYOK)?
Yes! CodeGPT supports BYOK (Bring Your Own Key). Simply add your OpenAI API key in the settings to use GPT-4o directly through your account. This gives you full control over costs, usage limits, and data privacy.
What programming languages does GPT-4o support?
GPT-4o supports 50+ programming languages including Python, JavaScript, TypeScript, Java, C++, C#, Go, Rust, Swift, Kotlin, PHP, Ruby, Scala, R, SQL, HTML/CSS, and many more. It understands frameworks, libraries, and modern language features across all major ecosystems.
How does GPT-4o compare to Claude Sonnet 4.5 for coding?
Both are excellent for coding with different strengths. Claude Sonnet 4.5 has a 200K context window and excels at analyzing large codebases. GPT-4o has a 128K context window but is particularly strong at following detailed instructions, complex reasoning, and has more extensive community support. CodeGPT lets you switch between both models to use the best tool for each task.
Is "GPT-4o-code" a separate model?
No, "gpt-4o-code" is not a separate model. This is a common search term that refers to using GPT-4o for coding tasks. OpenAI's GPT-4o model is already optimized for both text and code. CodeGPT gives you access to the full GPT-4o model with all its coding capabilities.
What does the "o" in GPT-4o stand for?
The "o" in GPT-4o stands for "omni," indicating that it's a multimodal model capable of understanding and generating text, code, and processing images. This makes it versatile for various development tasks beyond just text-based code generation.
Get GPT-4o in Your IDE
Start using GPT-4o for coding with the CodeGPT extension. Free to start, BYOK available.
Download VS Code ExtensionFree to start • No credit card required
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