Overview

Speechmatics | AI Voice Agents empowers businesses to create responsive, accurate, and globally scalable voice-driven assistants. At its core, the platform delivers sub-second speech-to-text across 55+ languages, enabling seamless real-time interaction. With advanced speaker diarization, custom dictionaries, and domain-specific formatting, it captures details like names, numbers, and addresses with precision, making AI-powered agents smarter and more context-aware.

Beyond speed and accuracy, Speechmatics is designed with flexibility for enterprise deployment. It can run in the cloud, on-premise, or on-device, giving organizations full control over data and scalability. With simple APIs, SDKs, and native integrations for platforms like LiveKit, Pipecat, and Vapi, it connects easily to LLMs, chatbots, LangGraph agents, and MCP servers. From healthcare to contact centers, finance, and restaurants, Speechmatics voice agents drive automation, reduce errors, and deliver consistent customer experiences at scale.

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Speechmatics | AI Voice AgentsInitial

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Initial release

September 16, 2025

Miss Erika Hakala

wrote:

Initial release of Speechmatics | AI Voice Agents.

Miss Erika Hakala

@misserikahakala

Stats

2 tools

Beginner

Joined: March 2024

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$0.24/unit

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Pay-as-you-go

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Pros and Cons

Pros

High real-time transcription accuracy

Sub-second response time

Supports 55 languages with accent coverage

Advanced speaker diarization

Custom dictionary for domain-specific terms

Flexible deployment: cloud, on-prem, or on-device

Integrates with LiveKit, Pipecat, Vapi, and LLMs

Simple APIs and SDKs for devs

Scales easily for enterprise workloads

Robust noise and overlap handling

Optimized for healthcare, contact centers, and finance

ISO/IEC 27001 certified security

Enterprise-grade encryption and compliance

View 8 more pros

Cons

Primarily focused on speech-to-text, not full conversational AI

May require developer integration for advanced use cases

Performance depends on audio quality in extreme conditions

Some features still maturing (e.g., upcoming pipeline updates)

Enterprise-level features may be cost-prohibitive for small teams

Relies on internet connectivity for cloud deployments

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Q&A

What is Speechmatics | AI Voice Agents?

It is a speech-to-text powered platform designed to build AI voice agents with sub-second accuracy across 55+ languages, enabling real-time, speaker-aware conversations.

How fast is the transcription?

Speechmatics achieves under one-second latency with up to 90% accuracy, even in noisy environments or overlapping speech.

Does it support multiple speakers?

Yes, advanced speaker diarization allows the system to track who said what and when, enabling speaker-specific actions.

Can I customize vocabulary?

Yes, Speechmatics offers a custom dictionary feature to lock in details like alphanumerics, names, and industry-specific terminology.

Where can it be deployed?

You can run Speechmatics in the cloud, on-premises, or even on-device, giving full flexibility depending on your infrastructure.

What integrations are available?

It integrates with LiveKit, Pipecat, Vapi, LangGraph agents, and MCP servers, and can be connected to LLMs or chatbots for conversational experiences.

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Speechmatics | AI Voice Agents

Overview