The OpenAI API KEY will be requested every time queries are made from the playground. For security reasons, Aquiles-RAG does not store your keys. Aquiles-RAG is not restricted to generating embeddings with OpenAI. Aquiles-RAG is embedding-agnostic. However, for ease of use and testing from the playground, we opted for OpenAI. You can consult our documentation to learn how to integrate its custom embedding generation:
Aquiles-RAG Docs.