You can certainly store ML models in TileDB. I've been working on an example notebook showing how to store an opencv model in TileDB, its not quite finished yet but will be published soon.

Using python as an example language, TileDB-Py offers simple functions, like "from_numpy" [1] for basic and simple models which we can write directly. For more advanced (and more common) use cases of complex models, its easy to create an array to store the model and all associated metadata. TileDB's array metadata and time travel capabilities allow for you to even see how your model changes over time as you update it.

[1] https://github.com/TileDB-Inc/TileDB-Py/blob/bcaee16b194675f...

Disclosure: I'm a member of the TileDB team.