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Speechmatics
Cambridge, United Kingdom
What it is
Speechmatics provides speech APIs for speech-to-text, voice agents, and text-to-speech, working with recorded files or live audio. Speech-to-text supports more than 55 languages, including conversations in which speakers change languages mid-sentence. The company says its real-time transcription can return results in less than one second. Speaker diarization and custom vocabulary help identify speakers and capture specialized terms. Listed use cases include healthcare, voice agents, live captioning, contact center analytics, legal transcription, and meeting platforms. Deployment options include SaaS, multi-region cloud, on-premises containers and virtual appliances, on-device, and hybrid cloud with on-premises; availability varies by plan. It is available through API and on Linux, macOS, Windows, web, and self-hosted platforms. The free plan includes $100 in credits, needs no credit card, and allows two concurrent real-time sessions. Usage-based options include text-to-speech at $0.01 per once and transcription plans priced per hour. Speechmatics states it is ISO/IEC 27001:2022 accredited, GDPR and HIPAA compliant, and SOC 2 Type II certified. It also says data is encrypted at rest with AES 256 and in transit using TLS 1.2 or higher.
For and against
For
- Speech-to-text supports more than 55 languages.
- Real-time results are reported in less than one second.
- Free plan includes $100 in credits.
- Custom vocabulary and speaker diarization are included.
- Multiple deployment options are listed.
Against
- Free accounts allow two concurrent real-time sessions.
- Deployment availability varies by plan.
- Enterprise pricing is custom and not listed.
The verdict
Speechmatics covers recorded and live audio, with speech-to-text, voice-agent, and text-to-speech APIs. Review the per-hour transcription options and plan-specific deployment and concurrency limits before selecting an offering.
Who it suits
Speechmatics may suit developers and organizations building transcription, voice-agent, or text-to-speech workflows. Its varied deployment options and listed use cases also serve teams with different audio workloads.
Plans and prices
Text to Speech
first 1 million characters free
Read 15 Oct 2026 · speechmatics.com
Melia 1
56 languages · multilingual code-switching
Read 15 Oct 2026 · speechmatics.com
Oak 1 Medical
medical model · multilingual clinical transcription
Read 15 Oct 2026 · speechmatics.com
Standard
lower-cost model · features of Enhanced · lower accuracy
Read 15 Oct 2026 · speechmatics.com
Enhanced
highest accuracy · selected language · custom dictionary · advanced punctuation
Read 15 Oct 2026 · speechmatics.com
Free
2 concurrent real-time sessions · 10 pre-recorded files per second · community, portal chat and email support
Read 3 Oct 2026 · speechmatics.com
Enterprise
unlimited files per second · demand-adjusted concurrency · dedicated support · on-premises, on-device and hybrid deployment
Read 15 Oct 2026 · speechmatics.com
On the record
- API authentication
- Every API request requires an API key and unauthenticated requests receive HTTP 401.docs.speechmatics.com · read 15 Oct 2026
- Audio intelligence
- The platform exposes sentiment, topic detection, summaries and automatic chapters for audio.github.com · read 15 Oct 2026
- Automatic language detection
- Melia 1 detects languages automatically and supports code-switching within one conversation.speechmatics.com · read 15 Oct 2026
- Company
- Speechmatics identifies itself as a private B2B SaaS voice AI provider founded in 2006 and headquartered in Cambridge, United Kingdom.speechmatics.com · read 3 Oct 2026
- Company founded
- Speechmatics was founded in 2006.linkedin.com · read 15 Oct 2026
- Conversation features
- Speaker diarization and custom vocabulary are included to identify speakers and capture specialized terminology.speechmatics.com · read 3 Oct 2026
- Custom vocabulary
- Custom dictionaries let customers add domain terms, names and acronyms to improve recognition.speechmatics.com · read 15 Oct 2026
- Data logging
- Pricing materials state that model-training data logging is disabled by default and that customers can choose US, EU or Australian processing locations.speechmatics.com · read 15 Oct 2026
- Data protection
- The security page says data is encrypted at rest with AES 256 and in transit using TLS 1.2 or higher.speechmatics.com · read 3 Oct 2026
- Deployment
- The pricing page lists SaaS, multi-region cloud, on-premises containers and virtual appliances, on-device, and hybrid cloud plus on-premises deployment options, with availability varying by plan.speechmatics.com · read 3 Oct 2026
- Deployment choices
- Speechmatics offers managed cloud, on-premises containers or virtual appliances, Kubernetes and on-device deployment.docs.speechmatics.com · read 15 Oct 2026
- Documentation
- The documentation site contains quickstarts, API references, model and language guides, deployment guides, billing, security and release notes.docs.speechmatics.com · read 15 Oct 2026
- Encryption
- The company says data is encrypted at rest with AES-256 and in transit with TLS 1.2 or higher.speechmatics.com · read 15 Oct 2026
- Free credit
- New accounts receive $100 in credit without requiring a payment card.speechmatics.com · read 15 Oct 2026
- Funding news
- Speechmatics announced a £6.35 million Series A round led by AlbionVC on October 21, 2019.speechmatics.com · read 15 Oct 2026
- GPU requirements
- The GPU inference container requires an NVIDIA GPU with at least 16 GB memory, 24 GB system RAM, CUDA support and Docker above 19.03.docs.speechmatics.com · read 15 Oct 2026
- Headquarters and size
- LinkedIn lists Cambridge, United Kingdom as headquarters and 51–200 employees.linkedin.com · read 15 Oct 2026
- Integrations
- Official integration documentation lists LiveKit, Pipecat, Vapi and Zapier.docs.speechmatics.com · read 15 Oct 2026
