I know of a few but Farcaster hive mind help me out. What are the earliest AI NFT collections?

OR 

What are historic NFT collections?

Please comment with when/why and a link.

While not super early, this might be the first 100% on chain AI NFT. Basically uses on-chain SVG instead of IPFS.

a kilobyte on the blockchain - 
100% on-chain art by Pindar Van Arman

All art is 100% on-chain and reachable in metadata, but if you want to quickly right-click-and-save, here is all of them already downloaded in one place for you:   https://bitgans.com/news/all-bytegans-decoded


byteGANs

I design and create systems that function as art. |

1099DA.art |

https://opensea.io/collection/1099-da

While not super early, this might be the first 100% on chain AI NFT. Basically uses on-chain SVG instead of IPFS.

https://opensea.io/collection/bytegans