Speechmatics | AI Voice Agents
Voice agents
22,118
4.7
Inputs:
Outputs:
Build smarter AI voice agents with the best speech recognition technology

Most popular alternative: Millis AI (71 saves)
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.
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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Releases
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September 16, 2025

Miss Erika Hakala
Initial release of Speechmatics | AI Voice Agents.
Pricing
Pricing model
Freemium
Paid options from
$0.24/unit
Billing frequency
Pay-as-you-go
Voice agents
22,118
4.7Prompts & Results
Add your own prompts and outputs to help others understand how to use this AI.
Speechmatics | AI Voice Agents was manually vetted by our editorial team and was first featured on September 16th 2025.
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72,626513v2.5 released 1mo agoFrom $500/mo
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Build smarter AI voice agents with the best speech recognition technologyOpen22,11820Released 1mo agoFree + from $0.24
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
View 1 more cons
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Create AI voice agents for automated calls in seconds.3,88746Released 1y agoFrom $37/moCallfluent is NOT ready for commercial use. I signed up, followed their tutorials to a tee, and could not get voice bot to work. The bot would hallucinate about dates, and would actually argue with me about days dates. I tried to connect with their support, and kept getting the same replies -- to not use the web based calling feature. I was actually calling by phone to test the bot. Support is TONE DEAF. I sent call recordings, transcriptions, and detailed list of issues by email. They kept repeating the same answers... almost as if they use their own garbage AI for tech support. I requested a ZOOM call with their "onboarding specialist" and was given access to a calendar, with the soonest appointment 8 days away. I requested a sooner appointment and the specialist started offering me times IN THE PAST. Again, I think they use their own AI for support or scheduling. I would stay away from this product. Not very good at all. Avoid at all costs if you wish to have a successful AI chat and voice bot.
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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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