The broader crypto market may be in steep decline, with major cryptocurrencies such as Bitcoin (CRYPTO: BTC) and Ethereum (CRYPTO: ETH) down anywhere from 25% to 50% for the year. But there's one segment of the crypto market that's holding up surprisingly well. A number of AI cryptos are up big for the year, with some of them already generating triple-digit gains for investors. So which of these cryptos with ties to artificial intelligence are worth buying right now? Missed Nvidia in 2009?