OpenAI is the most fully featured provider in Supercharger. It supports both text generation and vector embeddings, making it the only provider that can power the semantic recommendations system.
Capabilities
- Text generation (summaries, highlights, quotes, etc.)
- Vector embeddings for semantic content indexing and recommendations
Getting an API Key
- Go to platform.openai.com and create an account.
- Navigate to API Keys in your account settings.
- Click Create new secret key.
- Copy the key immediately — it won’t be shown again.
Configuring in Supercharger
- Go to Supercharger → Settings → API.
- Select OpenAI as your provider.
- Paste your API key into the OpenAI API Key field.
- Click Save Settings.
Models
Supercharger uses gpt-4.1-mini as the default model for text generation. You can override this with any model available on your OpenAI account.
Embedding Models
Supercharger uses text-embedding-3-large as the dafault model for embeddings. You can override this with any model available on your OpenAI account.
Warning
Changing the embedding model invalidates all existing vector data. Supercharger will prompt you to confirm and will require a full re-index of all your content before recommendations work again.
Notes
- OpenAI API usage is billed per token. Monitor your usage in the OpenAI dashboard.
- If you use a different provider as your primary text generation provider, you can still add your OpenAI key solely to enable embeddings and semantic recommendations.