3 API Updates: Cheaper Video Agent, Starfish TTS Goes API, and Video Translation Opens Up
What's New
1. Video Agent API — Price Reduced to 2 Credits per Minute
We heard your feedback: the previous pricing of 6 credits per minute for the Video Agent API was too steep. Effective immediately, Video Agent API usage is now billed at 2 credits per minute — a 3× reduction in cost.
→ Video Agent API Reference → Video Agent Developer Guide
2. Starfish Text-to-Speech Model — Now Available via API
HeyGen's in-house TTS model, Starfish, is now accessible directly through the API. Previously available only in AI Studio on the web, you can now programmatically generate natural-sounding speech from text.
How it works:
- List compatible voices —
GET /v1/audio/voices— retrieve available voice IDs. - Generate speech —
POST /v1/audio/text_to_speech— send your text and avoice_idto receive generated audio.
→ Starfish Developer Guide → Text-to-Speech API Reference → List Compatible Voices
3. Video Translation API — Now Open to All Tiers
The Video Translation API, including both Fast and Quality modes, is now available across all API plan tiers — Free, Pro, Scale, and Enterprise.
| Mode | Description | Cost |
|---|---|---|
| Fast (default) | Optimized for speed; ideal for videos with limited facial movement | 3 credits / min |
| Quality | Natural lip-sync with context-aware translations for premium results | 6 credits / min |
→ Video Translate Developer Guide → Translate Video API Reference → Supported Languages
Happy creating with HeyGen! 🎬