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OpenAI o1 is now available in GitHub Copilot Chat in public preview

OpenAI o1-preview and o1-mini are now available to all users in GitHub Copilot Chat in VS Code, Visual Studio, and on github.com/copilot.

OpenAI o1 is a new series of AI models equipped with advanced reasoning capabilities, trained to think through complex tasks using an internal thought process. During our exploration of o1-preview with GitHub Copilot, we found the models better understood code constraints and edge cases, producing more efficient and higher quality results.

Now, you can test these models for yourself. You can power GitHub Copilot Chat with o1-preview, o1-mini, or the default GPT-4o model. By switching models during a conversation, you can quickly move from explaining APIs or generating boilerplate code to designing complex algorithms or analyzing logic bugs.

With this preview, we’re excited to bring OpenAI’s latest advancements to you, whether you’re developing software with Copilot or building the next great LLM-based product. We can’t wait to see what you build!

Join the discussion within GitHub Community.

Improving GitHub Copilot code suggestions in Visual Studio for C# developers

In the latest versions of Visual Studio 2022, GitHub Copilot Completions now automatically considers semantically relevant C# files as additional context, even if those files are not open in your editor. This enhancement helps reduce hallucinations and provides more accurate, relevant suggestions.

GitHub Copilot provides autocomplete suggestions inline as you code. These suggestions are generated based on the content in your currently active file and any other open files in your editor. However, we’ve found that incorporating more relevant context leads to better suggestions.

To get started in Visual Studio 2022, ensure you’re using version 17.11 or later and have an active GitHub Copilot subscription. We hope this enhancement improves your experience with GitHub Copilot in Visual Studio. Our team is committed to improving Copilot support for C# developers in both Visual Studio and VS Code, with similar updates coming to VS Code soon.

For more details, visit the .NET team blog here.

Join our dedicated Community Discussions to discuss this update, share tips, and connect with other coders.

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Refine and validate code review suggestions with Copilot Workspace (public preview)

Code reviews and suggestions from colleagues, integrators, and AI agents like Copilot code review and Copilot autofix increase your code’s quality, but at times they can get overwhelming. You can now use Copilot Workspace directly in the context of your pull request to quickly refine, test, and incorporate code review feedback and suggestions from teammates and AI agents. Ship faster without compromising quality.

To get access, sign up for the waitlist here. This will also give you access to Copilot code review.

Copilot workspace with Copilot Review task

Using Copilot Workspace in your PRs, you can:

  • Review and incorporate code suggestions from teammates and AI agents in the context of the PR with an improved diff-viewing experience.
  • Refine and address merge-blocking feedback from directly within the PR with an improved code editing experience complete with language services and Copilot completions.
  • Build, test, and run proposed changes in the PR without affecting your personal build and test environment.

Validating an applied security autofix in Copilot Workspace

For more information see our documentation, or join the discussion within GitHub Community.

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