Connect GitHub Copilot

Estimated time: 5-10 minutes

If you already have a GitHub Copilot subscription (Individual $10/month or Enterprise), you can reuse this subscription in OpenCode to access models like GPT-4o, Claude, etc., without purchasing additional API.

Who is this for?

• Users with existing GitHub Copilot subscription
• Users who don't want to purchase OpenAI/Anthropic API separately
• Users who want to reuse Copilot models in terminal

If you don't have a Copilot subscription, skip this guide and check other connection tutorials.

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What you'll be able to do

• Connect GitHub Copilot in OpenCode
• Use models provided by Copilot (GPT-4o, Claude, etc.)
• Send your first message and receive a response

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🎒 Before you start

• [ ] Completed 1.2 Installation, able to run opencode
• [ ] Have a GitHub Copilot subscription (Individual or Enterprise)
• [ ] Able to access github.com

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Follow along

Step 1: Verify your Copilot subscription

Visit GitHub settings page to confirm:

https://github.com/settings/copilot

You should see a status like this:

GitHub Copilot
Status: Active

If it shows not subscribed, you need to subscribe to GitHub Copilot first.

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Step 2: Start connection in OpenCode

Launch OpenCode:

opencode

In the input box, type:

/connect

Search for GitHub Copilot in the provider list and select it.

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Step 3: Complete OAuth authorization

After selecting GitHub Copilot, OpenCode will display an authorization link:

Please visit: https://github.com/login/device
And enter code: XXXX-XXXX

Steps:

1. Open browser and visit https://github.com/login/device
2. Enter the device code shown on screen (e.g., XXXX-XXXX)
3. Click "Authorize" to authorize OpenCode

Auto-open browser

If your terminal supports it, OpenCode will automatically open the browser. If not, manually copy the link.

After successful authorization, OpenCode will display:

✓ Provider added successfully!

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Step 4: Select model

After successful connection, type:

/models

You'll see models provided by GitHub Copilot:

Model	Description
gpt-4o	Recommended, flagship multimodal model
gpt-4o-mini	Fast, low cost
claude-sonnet-4-5	Claude latest balanced version
claude-3-5-haiku	Claude fast version
o1	Enhanced reasoning model
o1-mini	Fast reasoning

Select a model to start the conversation.

Some models require Pro+ subscription

Advanced models like o1, claude-sonnet-4-5 may require GitHub Copilot Pro+ subscription. With a regular subscription, you may only have access to some models.

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Step 5: Send first message (verify success)

In the input box, type:

Hello, please introduce yourself

If you receive a response, the connection is successful.

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Checklist ✅

• [ ] Can see Copilot models in /models
• [ ] Can receive AI response when sending message
• [ ] No errors (like unauthorized / subscription required)

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Common issues

Issue	Cause	Solution
unauthorized	OAuth authorization failed or expired	Re-run /connect and select GitHub Copilot
subscription required	No Copilot subscription	Subscribe to GitHub Copilot first
Can't find a model	Subscription tier too low	Upgrade to Pro+ or use other models
Authorization page shows error	Device code expired	Re-run /connect, complete authorization within 5 minutes
Shows reauthenticate	Token expired	Re-authorize

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Re-authorization

If Token expires or authorization has issues, you can re-authenticate using:

Method 1: Reconnect in TUI

/connect

Select GitHub Copilot and follow prompts to re-authorize.

Method 2: Terminal command

opencode auth login
# Select GitHub Copilot

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Next steps

• Go back to 1.4 Overview to choose next route, or proceed to 2.1 Interface & Basics

Need help?

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