Yes, we do offer white labeling. You can create a custom GPT using our API that doesn't display our brand. However, for now, linking data sources must be done through Sphinx Mind, so you'll need access to the necessary accounts.
For an unbranded experience, choose our "marketingassistants.ai" domain when creating your GPT — this option is exclusive to our Elite plan. This way, when your clients use your custom GPT, their interactions will be with this unbranded domain. We're also planning to support custom domains in the future.