Multimodality is where machine learning actually went. Text, images, audio, and video handled by the same system, with the interesting behaviour emerging from the combinations rather than from any single mode.
The plural form names the field rather than the property, which suits a research group, a publication, a conference, or a company working across modes. It’s also broader than any specific technique, which means the name survives as the methods underneath change.
There’s a second, older reading in education and communication theory, where multimodality means learning and meaning-making through several channels at once. That’s an established academic field with its own literature.
Fifteen letters, six syllables, entirely phonetic, no hyphen, .com. It’s long, and that’s the honest trade-off. What you get is the exact term for the direction the whole field has taken, with no competitor using it.
The name is available. Enquiries welcome.