Package recommendation: faiss equivalent in R

Hi team,

when it comes to similarity search in python, people have facebook's faiss.
What would be the best option for the R world?

I know there are FNN, ANN, RANN in R. But, are they at the same level in terms of speed and memory as faiss?
I am looking to do nearest neighbor on embedding so pretty high dimension.

Two approaches are

  1. Use {Rcpp} to access the underlying C++ library
  2. Run in Python under {reticulate}

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