Hi, i've built a ListIndex over all of my product's documentation pages (177 html to text files). If i use the query engine now, each request costs about $1. Is there a way to reduce these costs? my code is a simple as:
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storage_context = StorageContext.from_defaults(persist_dir="./storage")
# load index
index = load_index_from_storage(storage_context)
query_engine = index.as_query_engine()
response = query_engine.query("what do you know about ...?")
