French text-to-speech API
TTS API for real-time French speech generation in voice agents, IVR, and narration. With voice cloning, character-level timestamps, and language mixing between French and 60+ supported languages.
$0.70/hour of generated audio
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French speech synthesis for production voice apps
French is spoken by more than 280 million people across France, Democratic Republic of Congo, Canada, Madagascar, Cameroon, Ivory Coast, Niger, and beyond. If your voice agent, IVR, or narration product speaks to them, text-to-speech has to get the details right: phone numbers and codes read exactly as written, names pronounced the way French speakers expect, and text that mixes French with English spoken in one voice.
Soniox TTS generates French speech over a real-time WebSocket, starting audio from the first few words, or with a single REST request, through one multilingual API built for 60+ languages. Every voice speaks French, you can clone your own voice, mix languages in one sentence, and get character-level timestamps.
Exceptional quality in French
Hear the same voice deliver natural, expressive speech in French and across 60+ languages with consistent quality, identity, and pronunciation.
Hallucination-free French speech generation
The French text you send is exactly what gets spoken. No invented words, dropped content, or unexpected substitutions.
Votre rendez-vous est confirmé pour le 3 juin à 9 h 45.
Votre rendez-vous est confirmé pour le 3 juin à 9 h 45.
Alphanumerics spoken correctly in French
Email addresses, phone numbers, addresses, IDs, and codes spoken clearly and precisely in French.
plusunquatreuncinqcinqcinqcinqzérountroisdeux
Names pronounced naturally in French
Handle person names, place names, brand names, and borrowed words with the pronunciation French speakers expect.
bee · YON · say
Streaming French speech before the sentence ends
Start generating French speech from the first few words, before the full sentence is available, for low-latency voice agents and live systems.
Bien sûr, je peux vous aider à modifier votre réservation. Quelle date vous conviendrait mieux ?
Precise timing for every character
Character-level timestamps let applications synchronize French text and audio, stop cleanly during interruptions, and continue from the correct point.
Seamless language switching with French mid-sentence
Speak mixed-language text naturally in a single utterance, switching between French and other languages with the right flow and pronunciation.
Estimate your French text-to-speech API cost
Set your monthly generated speech volume to estimate your Soniox API cost for text-to-speech.
Pricing calculator
French text-to-speech API pricing
1,000 hours of speech / month
Pricing assumptions
Based on public pay-as-you-go pricing. Enterprise discounts and committed-use contracts may differ. Some providers charge separately for certain features. The calculator uses the public price for the provider configuration that most closely matches Soniox.
Speech infrastructure for massive scale
Build on one API and deploy in your region
Use the same models and API everywhere, with in-region processing to meet latency, data residency, and regulatory requirements.
Available: US, EU, Japan, India
Coming soon: Korea, Australia, Canada, Saudi Arabia, UK, Brazil
Run mission-critical systems with confidence
- 99.9% uptime
Production-hardened infrastructure with monitoring and redundancy. - low-latency streaming
Process speech in real time with low latency for responsive voice applications. - Priority support
Severity-based incident response with direct access to the Soniox team.
"Before Soniox, our international users always had a noticeably different experience. Now accuracy and responsiveness match across all regions…it feels like one system instead of five."
Alon Yair CTO of Onvego
French text-to-speech use cases
Soniox TTS is built for French voice applications where latency, accuracy, and reliability matter as much as voice quality.
Voice agents
Streaming French replies that start before the LLM finishes and stop cleanly when the user interrupts.
Enterprise IVR and customer support
Read French account data, verification codes, and addresses exactly as written, at scale.
Multilingual communication
Speak French mixed with other languages in one voice, with foreign names pronounced correctly.
Accessibility and assistive voice tools
Dependable French voice output for reading assistants and communication tools.
Media and content production
French narration and audio content at scale, with names and technical terms pronounced correctly.
Video voiceover
French voiceovers for product, training, and marketing videos, in a built-in or cloned voice.
Start generating French speech from $0.70 per hour of generated audio.
Go global with one API
Get production-ready text-to-speech in 60+ languages.
Also for French: French speech-to-text API for voice input, and the French voice AI platform for enterprise deployment.
Privacy and compliance, built right in
Never stored, never saved.
Audio stays in memory, everything is processed in real-time.
Built for privacy-critical use cases.
Adhering to leading global security, privacy, and compliance standards.
Trusted where privacy matters most.
Used in industries where speech is sensitive, from healthcare to enterprise.
Frequently asked questions
Does Soniox support text-to-speech for French?
How natural does Soniox sound in French?
How much does the French text-to-speech API cost?
Which TTS model does Soniox use for French?
tts-rt-v2, one model for all 60+ supported languages. See TTS models.Which SDKs can I use?
Can I clone a voice for French?
How does Soniox TTS handle alphanumerics in French?
Can Soniox TTS handle mixed-language text with French?
How does Soniox TTS pronounce names and foreign words in French?
Is Soniox TTS fast enough for real-time French voice agents?
Where is French speech data processed, and is it used for training?
Is Soniox TTS ready for production French workloads?
How do I get started?
Get started with the Soniox API
Create an account instantly, or contact us to design a custom package for your business.
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Pay only for what you use with our flexible pricing. Built to scale with you.
Pricing details