Nonverbal cue
Why we chose this prompt: Parenthetical cues like (sighs) and (laughs) ask for a sound, not a word. This checks whether the model produces the nonverbal, skips it, or reads the cue text out loud.
Prompt
(sighs) Route 6 Espresso is open till nine. (laughs) The last train leaves at eleven fifty-six.
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provider default
Cost$0.001Generation time1.4sCorrectness100%provider default
Cost--Generation time1.2sCorrectness100%English_expressive_narrator
Cost$0.009Generation time1.0sCorrectness100%
longanlingxin
Cost$0.002Generation time2.1sCorrectness100%eve
Cost--Generation time1.2sCorrectness100%
Zephyr
Cost$0.004Generation time3.9sCorrectness94%English_expressive_narrator
Cost$0.006Generation time1.1sCorrectness94%loongjohn
Cost$0.001Generation time1.6sCorrectness94%
af_alloy
Cost--Generation time0.6sCorrectness88%
en-US-Harper:MAI-Voice-2
Cost--Generation time1.7sCorrectness88%en-US-Harper:MAI-Voice-2
Cost--Generation time1.6sCorrectness88%
en_paul_sad
Cost--Generation time4.8sCorrectness88%conversational_a
Cost--Generation time122.7sCorrectness74%
aura-2-thalia-en
Cost$0.003Generation time3.2sCorrectness72%provider default
Cost$0.001Generation time0.6sCorrectness71%tara
Cost$0.00067Generation time8.6sCorrectness67%