Key Features

Sub-second, speaker-aware speech-to-text in 55+ languages
25% higher real-time accuracy
Custom dictionary for precise term recognition
Advanced speaker diarization
Flexible deployment options (cloud, on-prem, on-device)
SDKs for Python, JavaScript, and React
Robust accent and dialect handling
Entity formatting

At the core of the Speechmatics API is a commitment to accuracy, boasting 25% higher real-time accuracy compared to competitors. This is further enhanced by features like a custom dictionary, enabling precise recognition of specific terms, alphanumerics, and entities. Advanced speaker diarization identifies who said what and when, facilitating speaker-specific actions and a deeper understanding of conversational dynamics. The API is engineered for speed, delivering 90% accuracy with latency under one second, and is 60% faster than the nearest competitor, making it ideal for applications demanding immediate responses.


The Speechmatics API is designed for flexibility and ease of use. It supports multiple deployment options – cloud, on-premise, or even on-device – and can scale to handle traffic spikes. Developer-friendly APIs and SDKs are available for popular languages like Python, JavaScript, and React, alongside integrations with leading platforms such as LLMs, chatbots, and LangGraph agents. This allows developers to quickly build and deploy voice-powered solutions across diverse industries, including healthcare, contact centers, finance, and restaurants, automating tasks and improving efficiency.

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