Research
Notes, methods, and lab updates on capturing expert work as training material for frontier AI. Long-form when it warrants it, short when it doesn't.
Five new TTS models join VOICE-H, taking it to fifteen. Cartesia's Sonic 3.6 takes the top place, Speechify's Simba 3.2 arrives third at a fraction of the price, and the same model can lead in one language and sit mid-table in another.
Introducing VOICE-H.→We're releasing VOICE-H, a new human evaluation benchmark for TTS models: 300 raters, 100 quotes selected from 40,000 real interviews, nine models against the original human recordings, and the qualitative reasons behind every preference.
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