Skip to main content
To connect GitHub Copilot to BetterToken, prepare an API key, enter the Base URL shown below, and choose a current Model ID from the model plaza.

​
Key settings

​
Prerequisites

​
Additional requirements

  • Latest VS Code installed
  • GitHub Copilot / Copilot Chat installed and signed in
  • The selected Model ID comes from the supported provider
  • A model ID is available, for example YOUR_MODEL_ID
Do not manually write your real API Key into chatLanguageModels.json. Paste it into the VS Code API Key prompt. VS Code will generate a local secret reference such as ${input:chat.lm.secret...}.

​
Install

Install or open GitHub Copilot, then continue with the manual setup below.

​
Manual setup

​
Setup steps

1

Open model management

In the Copilot Chat input area, click the model selector, then choose Manage Models….
Open Manage Models from the Copilot Chat model selector.
2

Add Custom Endpoint

In Language Models, click Add Models, then choose Custom Endpoint.
Click Add Models in Language Models and choose Custom Endpoint.
3

Enter the group name

In Group Name, enter:
Then press Enter.
Enter BetterToken in the Group Name input.
4

Enter the API Key

VS Code will ask for the API Key. Paste your BetterToken API Key, then press Enter.This value will not be shown directly in the configuration file. VS Code stores it as a local secret and generates a reference like this:
Do not replace ${input:chat.lm.secret...} with your real API Key. Keep the secret reference generated by VS Code.
5

Select the API type

In Custom Endpoint: API Type, select Chat Completions.
Select Chat Completions in Custom Endpoint API Type.
6

Edit the JSON configuration

VS Code opens chatLanguageModels.json. Confirm or update the configuration:
Configure BetterToken model URL, toolCalling, vision, and token limits in chatLanguageModels.json.
Check these fields:
7

Save and reload VS Code

Save chatLanguageModels.json, then run:
After reload, return to the Copilot Chat model selector and choose YOUR_MODEL_ID.
8

Send a test message

Send a simple message in Copilot Chat:
If Copilot Chat replies normally, the BetterToken Custom Endpoint is configured successfully.

​
Verify the connection

Send a short test prompt. If the tool returns a response without an authentication or Model ID error, the connection works. Fully restart the tool after changing its configuration.

​
Switch models

Open the model selector or change the Model field in the configuration. Use the exact Model ID from the model plaza, then restart the current session.

​
Common errors

​
Why should I enter the API Key in the prompt?

VS Code stores the API Key in local secret storage and references it in JSON with ${input:chat.lm.secret...}. This is safer than writing the real API Key into the JSON file.

​
Why use Chat Completions?

The verified working configuration uses Chat Completions. The URL is:
Do not use /v1/responses, and do not stop at /v1.

​
Does this replace GitHub Copilot inline completion?

No. This Custom Endpoint is mainly used for Copilot Chat language model calls. GitHub Copilot inline completion is still provided by GitHub Copilot itself.

​
What should I do if I see Invalid token?

Check these items in order:
  1. The API Key was entered in the VS Code prompt
  2. JSON keeps the ${input:chat.lm.secret...} reference
  3. The selected Model ID comes from the supported provider
  4. url is https://bettertoken.ai/v1/chat/completions
  5. apiType is chat-completions
  6. The model ID is a model from a supported provider from the model plaza

​
Advanced setup

​
Supported providers

Statuses apply to the BetterToken setup documented on this page.
  • Manual setup: enter the API Key, Base URL, and Model.
  • Not supported: no verified direct setup is currently available.

​
Technical details

The GitHub Copilot URL field requires the complete address https://bettertoken.ai/v1/chat/completions. VS Code does not append /chat/completions for this field.