multimodalities.com
The word did not arrive with the current wave. Education researchers have used multimodality for decades to describe learning that arrives through several channels simultaneously, and there is a substantial literature under the term.
Machine learning then converged on the same idea from the opposite direction, and the interesting results now come from combinations rather than from any single input type.
Two established fields sharing one plural noun is unusual and useful. It widens the buyer pool without making the name ambiguous, since a visitor resolves the reading within seconds of arriving.
The plural also names a field rather than a property, which suits a research group, a conference, a journal or a company working across modes, and it survives the specific techniques underneath being replaced.
Fifteen letters, fully phonetic, no hyphen, with nothing else using it.
The name is available. Offers considered.