13. The incremental speech recognition system of claim 12 , wherein the accuracy of the decoded spoken utterance is determined based on confidence values returned by the first speech decoding model and the second speech decoding model.
12. The incremental speech recognition system of claim 9 , wherein the computer-executable instructions are further executable by the at least one processor for: determining that each additional speech decoding model of the plurality of speech decoding models is unlikely to be capable of accurately decoding the spoken utterance; and terminating decoding of the spoken utterance.