Setup
Navigate to AI Configuration
In the settings panel, find the AI Provider or Model Configuration section.
Enter connection details
Configure the following:
- Base URL:
https://api.lightweight.one/v1 - API Key:
lw_sk_your-key-here - Model:
claude-sonnet-4.5(or any model from the catalog)
If Windsurf doesn’t show Lightweight models in its dropdown, manually type the model ID. See the Models page for all available options.