Speechmatics helps the agent accurately understand the caller. Tuner shows teams what the agent does next.
How this started
Speechmatics has been part of our story from the beginning. We demoed Tuner for the first time at their London office earlier this year. Since then we have exchanged insights, supported Voice AI events together, and had many honest conversations about what teams need to run reliable agents in production.
Making the partnership official felt like a natural next step. We will also work together on some of the bigger problems facing Voice AI teams as the industry moves from impressive demos to reliable production systems.
About Speechmatics
Speechmatics builds speech-to-text and voice AI technology used across contact centres, healthcare, media and regulated industries. Its models, including Melia for multilingual transcription and Linden for voice agents, are designed for real conversations rather than clean demos: accents, background noise, code-switching and overlapping speakers.
A single model covers 55+ languages, real-time streaming runs at sub-second latency, and deployment spans cloud, on-premise and on-device for teams with data residency requirements.
About Tuner
Tuner is the reliability layer for voice agents. Teams use Tuner to simulate thousands of realistic calls before launch, then keep full production visibility afterwards, catching hallucinations, broken flows and performance issues before their users find them.
What you get
What Speechmatics customers get with Tuner
Through the partnership, Speechmatics customers can test their agents, benchmark performance using their own data and use case, and understand what happens across every production call.
01
Simulate real conversations
Test agents against realistic callers and edge cases before launch, not after your users find the gaps.
02
Benchmark on your own terms
Measure performance using your own data, your use case and your own definition of success.
03
Understand every production call
Monitor live calls and see exactly why something failed, with evidence at the call level.
04
Test every update the same way
Run each new release against the same scenarios continuously, so changes ship without regressions.
Premium support
Speechmatics customers also receive premium support from Tuner, including help getting set up, building the right tests, and evaluating their agents as quickly as possible.
Score your first call today.
Start free. No demo call, no sales cycle — install the SDK and watch the first call land.
Free tier, no card · Builder at $39/mo

