Speech synthesis models
Our models are built for different use cases — from expressive English narration to native-quality multilingual synthesis.
Simba 3.2
model="simba-3.2"
Streaming-native speech with ultra-low latency and rich expressivity
Our flagship streaming-native English model, with the lowest time to first byte in the Simba family, finer-grained emotional control, SSML prosody, and a curated voice set.
- Streaming-native architecture
- Emotional expression
- Curated voice set
- SSML prosody control
Emotion Control
Direct the same line toward neutral, calm, cheerful, energetic, or sad delivery. Simba 3.2 shapes rhythm and tone with SSML emotion control.
“Every moment of light and dark is a miracle.”
Simba 3.0
model="simba-3.0"
Streaming-native synthesis beyond English
Streaming-native synthesis in English, German, Spanish, French, Italian, and Brazilian Portuguese. Routing happens automatically by language, and zero-shot voice cloning works self-serve.
- Streaming-native architecture
- 7 supported locales
- Zero-shot voice cloning
- Emotional expression
- SSML prosody control
- en-US English
- de-DE German
- es-MX Spanish (Mexico)
- es-ES Spanish (Spain) Cloned voice required
- fr-FR French
- it-IT Italian
- pt-BR Portuguese (BR)
Stock voices are available for six locales. Check GET /v1/voices before
building a language menu. Need a language outside this set? Simba 1.6 covers 30+ languages.
Multilingual Synthesis
Use Simba 3.0 for English, German, Mexican Spanish, French, Italian, and Brazilian Portuguese. Each sample uses a voice cataloged for that locale.
English
en-US
German
de-DE
Spanish
es-MX
French
fr-FR
Italian
it-IT
Portuguese
pt-BR
Zero-Shot Voice Cloning
Create a reusable voice from a short, consented reference clip. Self-serve cloning on Simba 3.0 preserves the speaker's identity across new scripts.
Simba 1.6
model="simba-multilingual"
Legacy multilingual coverage for existing integrations
Our legacy non-streaming model for 30+ locales, mixed-language input, and zero-shot voice cloning. It remains available for existing integrations. For new builds, use Simba 3.0 wherever its validated locale set fits.
- 30+ languages
- Mixed-language input
- Zero-shot voice cloning
- Existing integrations
All models, one API
Access every model through the same endpoint. Switch between models with a single parameter change.
from speechify import Speechify
client = Speechify() # uses SPEECHIFY_API_KEY env var
response = client.tts.audio.speech(
input='<speak><speechify:style emotion="cheerful">Every moment of light and dark is a miracle.</speechify:style></speak>',
voice_id="geffen_32",
model="simba-3.2",
audio_format="mp3",
)
with open("output.mp3", "wb") as f:
f.write(response.audio_data)