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I'm using VS Code Copilot AI chat with my Anthropic API Keys. I should be now able to choose Claude Sonnet 4 as an available model but it doesn't show up as an available model.

I did try to add it by:

  • Clicking on "Manage models.." in the AI Chat model option select.
  • Clicking on "Anthropic"
  • A list of checkable model versions shows up but it only contains: Claude 35 Haiku, Claude 3.5 Sonnet and Claude 3.7 Sonnet. I expected to be able to choose the 4 versions but I'm not able to.

I also tried to create a new Api key in the Anthropic console and add it VS code but I still get the same result.

Should I do something else to enable Claude Sonnet 4 in VS Code?

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  • Same here. Have you tried using the pre-release or vs code Insiders? Or have you came across any other solution? Commented Jun 26 at 14:25
  • 1
    @Oneezy I switched to using the Cline extension. It works with Claude Sonnet 4 with no problem. looks good so far. It has plenty of other options for models too. Commented Jun 26 at 15:47

2 Answers 2

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For now you should either use Github Copilot account, or wait for an update in Copilot to support Claude 4 standalone API keys.

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VS Code Copilot’s “bring your own key" model picker is currently allow-listing Anthropic models and Sonnet 4 isn’t on that list yet, so it won’t show up when you add your own Anthropic key. This has been acknowledged publicly by a VS Code/Copilot PM and tracked in the following GitHub issue.

https://github.com/microsoft/vscode/issues/255783

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