Comment by catoc

When local compute is more efficient data may remain local (e.g. when asking it to "find duplicate images" in millions of images it will likely (hopefully) just compute hashes and compare those), but complete folder contents are just as likely to be ingested (uploaded) and considered "Inputs", for which even the current Privacy Policy already explicitly says these will be "collected" (even when opting-out of allowing subsequent use for training).

To be clear: I like what Anthropic is doing, they appear more trustworthy/serious than OpenAI, but Cowork will result in millions of unsuspecting users having complete folders full of data uploaded and persisted on servers, currently, owned by Anthropic.