Additionally, BlockFi pays 8.6% APY on stablecoins. If you have any BTC, ETH, or LTC, they'll pay interest on those as well. Normally interest is paid in like-kind (e.g. a BTC balance generates BTC interest), but with the Flex option, you could have interest from all balances paid as one token. I chose to have everything paid in GUSD stablecoin, for instance, primarily to make figuring out taxes easier.