Key Info
HeyGen Voice Turbo, the lower-latency version of HeyGen's text-to-speech model that topped the Artificial Analysis TTS leaderboard, is available free on OpenRouter until November 30 with no credits required.
Highlights
- Over 2,900 voice options across 39 languages
- Supports up to 5,000 characters per request
- Streaming support for low-latency output
- $0 cost with no credits needed during the promo period