Hi @john-wagster , you could reference the 1st mapping that I posted in Dense vector field in nested object - Elastic Stack / Elasticsearch - Discuss the Elastic Stack, from which I got the index testing results here. The
file_section_textfield should consume the most amount of storage after thefile_section_embeddingfield.
Ah ok so with those mappings it makes more sense. If you turn off _source for the dense vector field then you still have some additional fields which are contributing.