Right now document level classification and span tagging within text documents. These can also be combined (as in the landing page screenshot) so that for a given input, you're learning multiple tasks at once as you annotate.
The core of this platform should generally be independent of the data input type and the output labels, so we're building out other annotation options for our business customers. If there's a use case you would like it to support, it would be great to chat jordan[at]humanloop.com :)