Speechmatics is an enterprise-grade speech recognition platform delivering industry-leading accuracy and speed for Voice AI applications. Built on advanced self-supervised learning models, Speechmatics provides inclusive Automated Speech Recognition (ASR) that works seamlessly across diverse accents, dialects, and challenging acoustic environments — regardless of gender or demographic.
Speechmatics is the most accurate real-time speech-to-text engine, delivering final transcripts in under one second without compromising accuracy. This balance of speed and precision is critical for voice agents that need to respond naturally to users while keeping the conversation flow intact.
With support for 55+ languages covering over half the world’s population, Speechmatics enables businesses to build voice experiences that work globally. Each language model supports all associated accents and dialects — whether Brazilian Portuguese or Canadian French — without requiring separate configurations.
Speechmatics is the only transcriber on Vapi to provide speaker diarization — the ability to identify who said what in multi-party conversations. Each word is labeled with a speaker label.
Note: This feature is rolling out and may not yet be fully functional.
Boost accuracy for proper nouns, acronyms, technical jargon, or industry-specific terminology by providing a list of custom words. This ensures your voice agent correctly transcribes domain-specific language critical to your application.
You can also follow along with the “How to Get Started” demo video.
