Speech to Text API built for real-world accuracy

Speech to text API designed for real-world challenges - transcribe fast, accurately, and in 55+ languages with support for code-switching, speaker diarization, and flexible deployment in cloud, on-prem, or on-device.

Case study

LiveKit | Case study

Enabling 100,000+ developers with leading speech recognition

Pairing LiveKit’s flexible agent framework with Speechmatics to build world-class agents

Case study

AI Media | Case study

Delivering 120X more with voice AI

Powering live content through AI-powered transcription, built on industry-leading voice AI

Case study

NCI | Case study

Redefining real-time captioning

How NCI delivered a 99% increase in usage of automated captioning

Case study

Media Track | Case study

Delivering a 20% leap in accuracy improvements

Improved transcription performance across more than 20 languages for their global clients

Case study

Prosodica | Case study

Driving better conversations at scale

Leveraging speech recognition to track customer interactions, highlight key insights, and raise contact center performance

Try our live transcription for yourself

Speak into your mic and watch real-time transcription in action. Fast, accurate, and built for natural conversations.

90% accuracy with <1 second latency. The fastest most accurate on the market. 60% faster than the nearest competitor. Try it out. Right now. In real-time.

Accurate. Scalable. Multilingual.

90%+ accuracy in the real-world Trained on real-world data - accents, noise, code-switching - our models excel where others fail. Sub-500ms latency Our API handles live and recorded audio at scale – with secure cloud or on-prem deployment options. 55+ languages, and counting From Arabic to Welsh, our speech to text API supports more languages - with global coverage and multilingual support.

Powerful Speech to Text features for your app

Designed for accuracy, security, and adaptability, our features optimize transcription accuracy, and seamless enterprise integration.

Precision transcription

Industry-leading accuracy

Consistently high performance in the most diverse, real-world audio - regardless of accent, dialect, or background noise.

Language agnostic ASR

Bilingual & multilingual support

Advanced bilingual models purpose-built to handle conversations without compromising accuracy at the expense of code-switching.

Scalable performance

Real-time and batch processing

Stream live audio or upload files in bulk. Designed for speed and scale across any workflow.

Best-in-class diarization

Speaker diarization

Accurately separates and tracks multiple speakers - even in overlapping, messy conversations.

Bespoke service

Custom Dictionary

Inject up to 1,000 domain-specific terms for accurate recognition of names, jargon, acronyms, and branded terms.

Enterprise-ready

Secure, flexible deployment

Power your products with enterprise-grade speech-to-text and Voice AI Agent APIs.

AI speech to text transcription in 55+ languages

Every voice, across every industry

Our AI transcription has you covered

Healthcare: Generate clinical notes at scale with Voice AI, understanding medical terminology.
Contact Centers: Accurate, real-time transcripts to enhance agent performance and customer experiences.
Media: Caption, summarize, and analyze audio with speed — making content more accessible.
Conversational AI: For builders and enterprises creating voice AI agents that truly listen.

Frequently Asked Questions

What languages does Speechmatics support?

1. Europe

Dutch, English, French, German, Irish, Italian, Portuguese, Spanish, Danish, Estonian, Finnish, Norwegian, Swedish, Belarusian, Bulgarian, Czech, Hungarian, Latvian, Lithuanian, Polish, Romanian, Russian, Slovakian, Slovenian, Ukrainian, Catalan, Galician, Greek, Maltese, Welsh, Esperanto, Interlingua.

2. Middle East & Central Asia

Arabic, Hebrew, Persian, Turkish, Uyghur, Bashkir.

3. South Asia

Bengali, Hindi, Marathi, Tamil, Urdu.

4. East & Southeast Asia

Cantonese, Mandarin, Japanese, Korean, Mongolian, Malay, Indonesian, Thai.

5. Africa

Swahili.

What is speech-to-text and how does it work?

Speech-to-text technology, also known as automatic speech recognition (ASR), converts spoken language into written text. It enables machines to "understand" and transcribe audio by recognizing patterns in human speech.

Why It Matters From live conversations to recorded content, speech-to-text is essential for making voice data accessible, searchable, and actionable. It powers subtitles, voice assistants, meeting notes, compliance workflows, and more.

How Speechmatics Does It Differently Speechmatics delivers world-class speech recognition across 55+ languages — with the accuracy, scalability, and flexibility global businesses need. Our models are trained on real-world, diverse audio to handle accents, noise, and code-switching effortlessly. Whether you’re working with real-time streams or large archives, Speechmatics turns audio into insight.

How much does Speechmatics cost?

Starting from $0.24 per hour of transcribed audio, falling well below this at scale with Enterprise plans.

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