I think, as of right now we mix up cosine similarity and cosine distance in here.
In docarray/array/storage/weaviate/find.py in FindMixin._find_similar_vectors cosine_similarity is set as follows:

As far as I understood, we need to follow one of the two:

• https://stackoverflow.com/questions/58381092/difference-between-cosine-similarity-and-cosine-distance
• https://weaviate.io/developers/weaviate/current/more-resources/faq.html#q-how-do-i-get-the-cosine-similarity-from-weaviates-certainty