Voice AI
Built for AI Agents
Low-latency speech synthesis designed for AI agents, providing cost-efficient performance for real-time voice interactions.
We develop data-efficient foundational text-to-speech (TTS) models that serve as infrastructure for vertical voice AI agents. Where generic models often struggle with complex edge cases, dialects, or industry jargon, our models learn these specific intonation patterns with high quality using very small datasets. This allows us to provide vertical AI startups with a TTS layer that offers sub-200ms latency, lower costs, and a more natural intonation than competing models.
Hear It For Yourself
Test our V0 model, designed for low latency and cost efficiency. Type your text below to generate an audio sample.
Tontaube V0 is a foundational voice AI model. Improved versions are coming to the app and API soon.
Build with Tontaube
A high-speed, cost-efficient voice generation API powered by our architecture. Clone any voice from a single audio file and generate long-form speech at 10× real-time speed.
- 1,000,000 free characters on sign-up
- $5 per million characters
- English · more languages coming soon
- Pay-as-you-go with enterprise plans
- Custom voices (coming soon)
- ~200ms latency for enterprise customers
import tontaube
with tontaube.Client(api_key="ttb_live_...") as client:
speakers = client.list_speakers()
for speaker in speakers:
print(f"{speaker.name} ({speaker.voice_style}), id: {speaker.id}")
response = client.generate_speech(
text="I am here to help you with your project. Tell me what we are building today, and I will get right to work.",
speaker_id=speakers[0].id,
temperature=0.8,
)
with open("speech.wav", "wb") as f:
f.write(response.content)
print(f"Duration: {response.audio_duration}s, Cost: ${response.cost_usd}")
print("Result saved to speech.wav")
Tontaube for iOS & Android
Our audiobook and voice cloning app — already in the hands of thousands of listeners. Convert any document to audio, clone your voice, and stream from a public domain library.
- PDF, EPUB & document conversion
- Free voice cloning
- 30,000+ AI audiobooks
Interested in Investing?
We've proven the architecture at prototype scale and are seeking investment to scale compute, data, and the team.