Overview
By default, Copilot code completion uses the GPT-4o Copilot, a fine-tuned GPT-4o mini based large language model (LLM). This model has been trained on a wide range of high quality public GitHub repositories, providing coverage of over 30 programming languages. Its knowledge base is more current than the default model and you may find that it generates completion suggestions more quickly.
View the list of programming languages and technologies included in the training data.
- C
- C#
- C++
- Clojure
- CSS
- Dart
- Dockerfile
- Elixir
- Emacs Lisp
- Go
- Haskell
- HTML
- Java
- JavaScript
- Julia
- Jupyter Notebook
- Kotlin
- Lua
- MATLAB
- Objective-C
- Perl
- PHP
- PowerShell
- Python
- R
- Ruby
- Rust
- Scala
- Shell
- Swift
- TeX
- TypeScript
- Vue
Note
- Multiple model support for Copilot code completion is in public preview and is subject to change.
- You can switch AI models in Visual Studio 17.14 Preview 2 and later, and in the latest JetBrains IDEs, with the latest version of the GitHub Copilot extension.
Effects of switching the AI model
Changing the model that's used for Copilot code completion does not affect the model that's used by Copilot Chat. See Changing the AI model for Copilot Chat.
There are no changes to the data collection and usage policy if you change the AI model.
If you are on a Copilot Free subscription, all completions count against your completions quota regardless of the model used. See Subscription plans for GitHub Copilot.
The setting to enable or disable suggestions that match public code are applied irrespective of which model you choose. See Finding public code that matches GitHub Copilot suggestions.
Enabling the model switcher
If you have a Copilot Free or Copilot Pro subscription, the model switcher for Copilot code completion is automatically enabled.
If you have a Copilot Business subscription, then the organization from which you receive your subscription must enable the Editor preview features setting. See Managing policies for Copilot in your organization.
Changing the AI model for code completion
The following instructions are for JetBrains IDEs. If you are using Visual Studio, click the appropriate tab at the start of this article.
- Click the icon in the status bar.
- In the popup menu, click Edit Model for Completion.
- In the settings dialog box for "Languages & Frameworks > GitHub Copilot," click the dropdown menu for Model for completions and select the model you want to use.
- Click OK.