About our foundation model SSFM
Typecast currently uses an advanced AI voice model, the Typecast Speech Synthesis Foundation Model, or Typecast SSFM for short, which is our next generation text-to-speech technology that brings text to life with unparalleled naturalness and expressiveness.
Models overview
| Model / API value | API availability | Description |
|---|---|---|
SSFM 3.1ssfm-v31 | 2026.10 | Improved fidelity to input text and speech generation stability |
SSFM 3.0ssfm-v30 | 2026.01 | Natural prosody; 35+ languages; 7 emotion presets and Smart Emotion |
SSFM 2.1ssfm-v21 | 2025.07 | Low latency; 27 languages; 4 emotion presets |
SSFM 3.1
This model improves speech generation stability and fidelity to the input text, while retaining the same features and supported languages as the previous model.
SSFM 3.0
- Smart Emotion: Automatically detects the appropriate emotion from the text context and applies it to the voice.
- Emotion Presets:
normal,happy,sad,angry,whisper,toneup,tonedown(available across all voices) - Languages Supported: English, Korean, Arabic, Bengali, Bulgarian, Cantonese, Chinese (Mandarin), Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hindi, Hungarian, Indonesian, Italian, Japanese, Malay, Min Nan, Norwegian, Polish, Portuguese, Punjabi, Romanian, Russian, Slovak, Spanish, Swedish, Tagalog, Tamil, Thai, Turkish, Ukrainian, Vietnamese
SSFM 2.1
- Emotion Presets:
normal,happy,sad,angry(availability varies by voice) - Languages Supported: English, Korean, Arabic, Bulgarian, Chinese, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Indonesian, Italian, Japanese, Malay, Polish, Portuguese, Romanian, Russian, Slovak, Spanish, Swedish, Tagalog, Tamil, Ukrainian