[pepemon]

Is there something similar available for fish?

[trulyrandom]

I believe fish already does some of these things. For example: if there is no binary available in PATH for one of the commands in your history, that command won't be suggested. Same goes for commands that have file/directory names in them that don't exist.

[ghishadow]

https://github.com/cantino/mcfly it uses small neural engine and pretty fast

[ilaksh]

How does the default fish completion compare to this I wonder? It's pretty great already.