French speech-to-text API
STT API for real-time and async French transcription in voice agents, dictation, and meeting notes. With speaker diarization, end-of-turn detection, and mid-sentence code-switching between French and 60+ other supported languages.
$0.10/hour async · $0.12/hour real-time
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French speech recognition 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, dictation app, or meeting notetaker serves them, speech-to-text has to handle French the way people actually speak it: regional accents, speakers who switch to English mid-sentence, and names, numbers, and IDs that have to come out exactly right.
Soniox STT transcribes French with native-speaker accuracy in real time over a WebSocket or asynchronously from recorded files, through one multilingual API built for 60+ languages. It follows speakers into other languages, labels who said what, and returns timestamps. Transcription biasing toward French is available through the language hints option.
French native-speaker accuracy
Accurate French speech recognition across accents, dialects, and real-world conversational speech.
“We tried a dozen speech-to-text and translation services. Soniox is the best, so that's what we use.”
Cayden Pierce, CEO/CTO at MentraAutomatically detect and switch languages with French
Soniox identifies the language automatically and follows changes between French and other languages live, even within the same sentence.
Get every character right in French
Names, phone numbers, addresses, IDs, serial numbers, and other structured information spoken in French are recognized precisely.
Phone number
Mon numéro est le +49 172 684 9317.
Reference ID
Le numéro de dossier est AX-4927-B.
Mixed alphanumeric
Le numéro de série de l'appareil est XR8Q-19F2.
International name
Nguyễn Minh Anh rejoindra la réunion à quinze heures.
Improve French accuracy with context
Provide terminology, names, or custom vocabulary to guide French recognition toward the right words, without retraining models.
Know when the speaker is finished
Soniox detects when a French speaker has actually completed their thought, not just when they pause.
Know who said what in French
Soniox separates French speakers in real time, so every word stays connected to the person who said it.
Estimate your French speech-to-text API cost
Choose real-time or async transcription and set your monthly audio volume to estimate your Soniox API cost.
Pricing calculator
French speech-to-text API pricing
1,000 hours of audio / 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 speech-to-text use cases
Soniox is built for French voice applications where accuracy, latency, and reliability matter at scale.
Voice agents
Streaming French recognition that knows when the speaker has finished, so agents reply at the right moment.
Voice dictation
Real-time French dictation that writes names, numbers, and codes exactly as spoken.
Meeting notes
French meeting transcripts with speaker labels and timestamps, ready for summaries.
Call center
Real-time transcription, agent assist, and searchable records for every French customer interaction.
Medical transcription
Transcription of French clinical speech, including specialist terminology and patient documentation.
Speech translation
Real-time or async translation of spoken French into 60+ languages.
Start transcribing French speech from $0.10 per hour of audio.
Use Soniox in popular frameworks
Soniox integrates seamlessly with leading real-time communication platforms, AI frameworks, automation tools, and developer SDKs.
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Twilio is a cloud-based customer engagement platform (CPaaS) that provides APIs, allowing developers to integrate voice, messaging (SMS, WhatsApp), email, and authentication capabilities into applications.
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Open-source AI SDK with a unified interface across multiple providers. No vendor lock-in, no proprietary formats.
n8n is a powerful, low-code/pro-code workflow automation tool that connects various applications, APIs, and databases to automate tasks.
Build the next generation of voice products, from agents and wearables to dictation, translation, and real-time multilingual experiences.
Go global with one API
Get production-ready speech-to-text recognition, transcription, and translation in 60+ languages.
Also for French: French text-to-speech API for voice output, 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 real-time speech-to-text for French?
How accurate is Soniox for French?
How much does the French speech-to-text API cost?
Which SDKs can I use?
Can Soniox handle mixed-language speech involving French?
Does Soniox support real-time translation from and to French?
Can Soniox recognize numbers, names, and alphanumerics in French?
Does Soniox support speaker diarization in French?
Can I improve accuracy for domain-specific French audio?
Where is French speech data processed, and is it used for training?
Is Soniox ready for production French workloads?
How do I get started?
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