Why can't I use the Claude model in IDEA?

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GitHub Copilot Pro is active for my account. Plugin version is 1.5.66-243

[madebymustafa]

If you’re seeing “Not authorized to use Copilot” even though you’re subscribed, it’s usually just a session issue.

I’d try signing out of GitHub completely, then logging back in. After that, restart your editor so everything refreshes properly. It’s also worth double checking that your Copilot plan shows as active under Billing & plans.

Most of the time, it’s just an authentication refresh problem. If it’s still happening after that, reaching out to GitHub Support with the error details should get it sorted.

Hope this helps 🙌

[krishna1012k]

If you can’t use the Claude model in IDEA, it’s usually due to one of these reasons:

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1️⃣ You Don’t Have API Access to Anthropic Claude

Claude models (like Claude 3) are provided by Anthropic, not directly by your IDE.

To use Claude inside IDEA, you need:

• ✅ An API key from Anthropic
• ✅ A plugin that supports Claude
• ✅ Proper configuration inside the plugin

If you only have a ChatGPT/OpenAI key, Claude won’t work.

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2️⃣ Your Plugin Doesn’t Support Claude

Some AI plugins in:

• IntelliJ IDEA
• Android Studio

only support OpenAI models by default.

Check:
Settings → Plugins → AI Plugin → Supported Models

If Claude is not listed → that’s the issue.

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3️⃣ Region or Account Restriction

Claude API may not be available in some regions or for free-tier accounts.

If you're using:

• Free trial
• Student account
• Organization-managed account

Claude access might be disabled.

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4️⃣ API Key Not Configured Properly

Go to:

Settings → Tools → AI Assistant → API Key

Make sure:

• You selected Anthropic
• You pasted the correct key
• No extra spaces
• Model name is correct (e.g., claude-3-sonnet)

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5️⃣ Network / Firewall Blocking

If you’re:

• On college WiFi
• Office network
• Using VPN

Firewall might block Anthropic’s API endpoint.

Try:

• Different network
• Mobile hotspot
• Disable VPN

[Shubrathshetty]

Try using Google Antigravity IDE(or) connect your project to claude through a MCP server.

Hope this may help🙌

[Farhxn-15]

Yeah, this confuses a lot of people at first.

Even though the model picker shows multiple providers, GitHub Copilot Chat inside JetBrains IDEs only enables the models that are supported and licensed for Copilot use. Models like Claude are not currently available through Copilot Chat in IDEA.

The list you see can include preview or platform level models, but availability depends on Copilot integration support, licensing, and rollout status.

A few things to keep in mind:

• Copilot Chat officially supports OpenAI based models and selected partner models that GitHub has enabled.
• Claude models are not part of the Copilot Chat integration right now.
• Some preview models appear in the selector but are not enabled for all users.
• Availability can vary by plugin version, region, and account entitlements.

Since your Copilot Pro is active and other models are working, this is not a problem with your setup.

If you specifically need Claude, you would need to access it through Anthropic’s API or another supported integration outside of Copilot.

Hopefully GitHub expands model support in the future, but at the moment what you’re seeing is expected behavior.