Speechmatics
Cambridge-based specialist speech vendor providing enterprise and developer speech-to-text, text-to-speech, and voice agent APIs with flexible deployment across cloud, on-premises, and on-device.
Where Speechmatics ranks
Current edition · updated Oct 20, 2026About Speechmatics
Cambridge-based specialist speech vendor providing enterprise and developer speech-to-text, text-to-speech, and voice agent APIs with flexible deployment across cloud, on-premises, and on-device.
Products
Real-time speech-to-text in 56+ languages with <1 second latency, 90%+ accuracy.
Batch file transcription for processing thousands of hours of pre-recorded audio and video files with full feature support.
Run Speechmatics speech recognition directly on devices for ultra-low latency and maximum data privacy.
Low-latency text-to-speech with sub-150ms latency, delivering lifelike, human-sounding voices ideal for real-time conversations and voice agents.
API for building AI voice agents with sub-second, speaker-aware speech-to-text and text-to-speech across 56+ languages.
Detect topics within speech using LLMs' inherent understanding of language.
Automatically organize and summarize audio and video content into chapters, each with a heading for easy navigation of content.
Track and analyze sentiment throughout calls and transcribed media to understand how customers are feeling about every aspect of your service.
Transcribe and translate audio to and from English for over 30 languages using a single API call.
AI transcription API supporting 56+ languages with batch and real-time modes.
Topic detection using LLMs to identify what is being spoken about via a single API call.
Audio sentiment detection analysis identifying sentiment throughout calls.
What customers say
“Speechmatics is really optimized for live transcription. The flexibility and capability of their systems allow us to get a really consistent level of quality – and that consistent level of quality is measured by our viewers’ feedback.”
- Real-Time Speech-to-Text
Media Track integrated Speechmatics into its MT media-intelligence product to consolidate speech-to-text engines and support multilingual monitoring. Speechmatics reports a 20% improvement in overall transcription…
Case study - Real-Time Speech-to-Text
AI-Media integrated Speechmatics’ transcription engine into LEXI 3.0, delivered through LEXI Network. Speechmatics reports improved real-time caption accuracy and broader multilingual delivery; the story does not…
Case study - Real-Time Speech-to-Text
NCI integrated Speechmatics’ speech-to-text API into CaptionSentry, with specialists monitoring captioning around the clock. Speechmatics reports CaptionSentry usage increased 21% in 2022 and 99% in 2023.
Case study
Security and compliance
As reported by Speechmatics. Ask for audit reports before you buy.
- ISO/IEC 27001Certified
- SOC 2 Type IICertified
- HIPAACompliant
- Encryption at rest (AES 256)
- Encryption in transit (TLS 1.2 or higher)
- Security Incident and Event Monitoring (SIEM)
- CREST-accredited penetration testing
- On-premises Kubernetes-controlled container deployment
- Cloud infrastructure hosted on Azure with built-in security services
- Security operations partnership with Kroll
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