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HeyGen makes Voice Turbo API use free through November 30
HeyGen says its own Voice Turbo text-to-speech model is free through November 30, 2026 for developers with a HeyGen account and API key, without a credit card. The preview is best effort and may return HTTP 429 when capacity is full. It supports public and authorized instant voices; professional voice clones require a different model. HeyGen gives no post-promotion price.
Primary source · HeyGen · October 21, 2026
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