fun fact, there was a shareware clone of Racter released in 1991, called Claude
https://www.cs.cmu.edu/afs/cs/project/ai-repository/ai/areas...
There's no way the connection isn't intentional!
I could easily see Anthropic picking it independently, Claude Shannon studied entropy of human text and measured the loss a human could achieve in predicting the next character of text given preceding context.