Prosody
PunctuationLiteralness
Embedded instructionFive nos
Why we chose this prompt: Five identical words in a row. Models often collapse repetition to three or four, or rush through it flat, so this checks both the count and whether the delivery still sounds like speech.
Prompt
No, no, no, no, no. Not tonight.
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provider default
Cost--Generation time1.0sCorrectness100%provider default
Cost--Generation time21.6sCorrectness100%flux-alexis-en
Cost--Generation time2.0sCorrectness100%george
Cost--Generation time0.6sCorrectness100%george
Cost--Generation time1.1sCorrectness100%george
Cost--Generation time0.7sCorrectness100%george
Cost--Generation time0.6sCorrectness100%george
Cost--Generation time3.2sCorrectness100%george
Cost--Generation time1.1sCorrectness100%george
Cost--Generation time1.2sCorrectness100%george
Cost--Generation time0.8sCorrectness100%provider default
Cost--Generation time1.0sCorrectness100%provider default
Cost$0.00048Generation time0.9sCorrectness100%provider default
Cost$0.00048Generation time0.5sCorrectness100%Zephyr
Cost$0.003Generation time2.2sCorrectness100%Zephyr
Cost--Generation time2.4sCorrectness100%Zephyr
Cost--Generation time3.4sCorrectness100%
af_alloy
Cost$0.00002Generation time0.5sCorrectness100%nadine
Cost--Generation time1.6sCorrectness100%nadine
Cost--Generation time3.7sCorrectness100%
cs-CZ-Grant:MAI-Voice-2.1
Cost--Generation time2.1sCorrectness100%
cs-CZ-Grant:MAI-Voice-2.1-Flash
Cost--Generation time2.8sCorrectness100%English_expressive_narrator
Cost$0.003Generation time0.8sCorrectness100%English_expressive_narrator
Cost--Generation time0.8sCorrectness100%
en_paul_sad
Cost$0.000Generation time1.0sCorrectness100%- Mistral

voice_3150
Cost$0.00042Generation time1.7sCorrectness100% 
longanlingxin
Cost--Generation time0.9sCorrectness100%eve
Cost$0.00048Generation time0.7sCorrectness100%conversational_a
Cost--Generation time98.8sCorrectness89%tara
Cost$0.00022Generation time4.4sCorrectness80%aura-2-thalia-en
Cost$0.00096Generation time2.8sCorrectness78%
en-US-Harper:MAI-Voice-2
Cost$0.0007Generation time1.6sCorrectness78%
en-US-Harper:MAI-Voice-2
Cost$0.00048Generation time1.9sCorrectness78%
loongjohn
Cost--Generation time0.9sCorrectness78%george
Cost--Generation time0.4sCorrectness64%provider default
Cost$0.00048Generation time0.7sCorrectness22%geffen_32
Cost--Generation time0.9sCorrectness--