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The original brainwallet.org for converting words to private keys is likely defunct. While theoretically possible to derive the key from your AI's word using alternative open-source tools or crypto libraries, you need to know the exact key derivation method used by the original site (likely a form of hashing). Exercise extreme caution with any online tools for this due to security risks. While the 0.01 BTC is unclaimed, cracking this long-standing puzzle is complex, so MyACUVUE® Rewards prioritize your security and be realistic about success. Knowing the specific derivation method your AI used is the crucial next step.

 

At https://www.bitaddress.org you have a section for brainwallets where you can turn text or passphrases into private keys. The common mechanism is to derive the SHA256 hash of the text or a passphrase. SHA256 hashes are conveniently 256 bits long, same as Bitcoin private keys.

Brainwallets are usually not secure unless you use a long enough random and complex passphrase as input to the SHA256 hash function. Consider anything that is publicly available as compromised for brainwallets. There are bots online that immediately steal or compete with each other to steal compromised brainwallets. Simply don't use it. You've been warned.

If you want to learn more, search for keywords brainflayer or maybe start reading here where you'll find more keywords to search for:
https://www.wired.com/2015/07/brainflayer-password-cracker-steals-bitcoins-brain/