AI transcription API, built for real-world performance.

Built for developers, trusted by enterprises—our AI transcription API combines low-latency with high-accuracy output, delivered on-prem or the cloud.

Case study

AI Media | Case study

Delivering 120X more with voice AI

Powering live content through AI-powered transcription, built on industry-leading voice AI

Case study

LiveKit | Case study

Enabling 100,000+ developers with leading speech recognition

Pairing LiveKit’s flexible agent framework with Speechmatics to build world-class agents

Case study

NCI | Case study

Redefining real-time captioning

How NCI delivered a 99% increase in usage of automated captioning

Case study

Media Track | Case study

Delivering a 20% leap in accuracy improvements

Improved transcription performance across more than 20 languages for their global clients

Case study

Prosodica | Case study

Driving better conversations at scale

Leveraging speech recognition to track customer interactions, highlight key insights, and raise contact center performance

Why developers choose our AI transcription API

Accurate

AI transcripts you can trust

Trusted by enterprises & developers worldwide, our models deliver 90%+ accuracy across real-world use cases.

Low-latency

<500ms latency

Precise, low-latency transcription across 55+ languages, delivered before your media even ends.

Integration

Quick, flexible deployment

On-prem? Cloud? On-device? However you want it, we can provide it through our GPU infrastructure.

Hitting the mark with pinpoint accuracy

Best in class ASR

We outperform the biggest companies in the world across the languages we support.

Our inclusive ASR works regardless of the accent or dialect, even in challenging, noisy environments.

Choose a clip

Play audio

They were known as seers and they were held in fear by women and the elderly.

People (They) have (were) noticed (known) seals (as) seers and they were held in fear by women and the elderly.

Help

The comparison text for ASR providers shows how the recognized output compares to the reference. Words in red indicate the errors with substitutions being in italic (e.g. substitution), deletions (e.g. deletion) being crossed out, and insertions (e.g. insertion) being underlined. Hovering over the substitution error will show the ground truth.

Discover our AI transcription capabilities

Delivering for multilingual, multicultural, and multinational businesses.

Global reach

55+ languages

Supporting transcription in 55+ languages with automatic language detection.

Punctuation and numerals

Smart formatting

Correctly formatted numbers, dates, and currencies, as well as language-specific capitalization (e.g. "one thousand" to "1000").

Customization

Custom Dictionary

Boost accuracy for proper nouns, acronyms, or industry-specific terms by providing a list of custom words.

AI transcription

Real-time & pre-recorded

Live or pre-recorded, our models deliver unmatched accuracy and speed—outperforming every other solution.

Multi-speakers

Diarization

Diarization identifies and labels multiple speakers in complex conversations, even in real-time environments.

Disfluencies

Filler words

Capture interruptions like “huh” and “hmm” to reflect more natural, conversational speech.

From speech to text, instantly.

Need speed? Prefer accuracy?

Choose your operating point and get exactly what you need. We offer two proprietary transcription models available to all customers:

Standard

Great for users and generating transcripts where speed is a priority, with accuracy trade-offs as a result.

Enhanced

When unbeatable accuracy is a must-have, our Enhanced model provides best-in-class accuracy across all of our languages.

“Working with Speechmatics enables us to seamlessly provide our customers with quality, automated speech analytics as part of our solution."

Mariano Tan, President & CEO, Prosodica

"We're delighted to work with Speechmatics to drive our live and batch captioning – they continue to be ahead of the pack for all key quality metrics."

Tom Wootton, Product Leader, Red Bee

"They consistently outperform other vendors for word error rate and punctuation - playing a pivotal role in the development of our workspace."

Maarten Verwaest, CRO, Limecraft

Try It Now. For Free. Without Code.

The BEST way to view Speechmatics' accuracy is to see for yourself, on your media. Head to the portal and get a free account today.

Resources

Voice Agents

Vapi and Speechmatics: Build agents that understand every voice

Ship Voice AI agents that stay readable in real time, even in noisy, multi-speaker calls.

SpeechmaticsEditorial Team

Text-to-Speech

Why we built our low-latency Text-to-Speech

Most TTS sounds great in demos but breaks in real conversations. We built ours for sub-150ms latency, natural voices, and global scale.

Stuart WoodProduct Manager

Medical

The ultimate guide to healthcare speech recognition

Reducing documentation time, easing physician burnout, and improving patient care and efficiency with Voice AI.

Blair RobertsonAccount Executive

On-Prem

The return of on-premise: Why enterprise AI's head is no longer in the cloud

As regulations rise and cloud costs spiral, enterprises are bringing AI home—with better outcomes.

Brad PhippsDirector, SaaS & Infrastructure

Voice Agents

Introducing real-time, speaker-aware Voice Agents with LiveKit + Speechmatics

Speechmatics brings speaker diarization to LiveKit agents - enabling them to understand not just what was said, but who said it.

Anthony PereraProduct Marketing Manager