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HeyGen adds a faster, cheaper speech option for instant voices
HeyGen’s October API changelog adds HeyGen Voice 1 Turbo for its own instant voice clones. The company describes lower latency and lower cost than the default HeyGen Voice 1 model, while the original model remains the default. Turbo is available through the HeyGen speech and streaming API endpoints and does not support professional voice clones. The changelog gives only an October month label, not a trustworthy day or a numeric provider price; this event remains undated and does not attribute the model to an outside supplier.
Primary source · HeyGen
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