TTS and STT Vendors - Cognigy Documentation
Documentation Index
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The table shows the cloud-based and on-premises TTS (Text-to-Speech) and STT (Speech-to-Text) providers supported by Cognigy Voice Gateway.
| Provider | Cloud-Based | On-Premises |
|---|---|---|
| TTS | STT | TTS |
| ------------------- | ------------- | ------------- |
| AWS | + | + |
| Deepgram | + | + |
| Deepgram Flux | - | + |
| ElevenLabs | + | + |
| + | + | |
| Microsoft | + | + |
| Nuance | + | + |
| Speechmatics1 | + | + |
| Custom | + | + |
More Information
1 Access to the Speechmatics speech provider in Voice Gateway is behind a feature flag and requires additional configuration. For more information, refer to Speech Services: Speechmatics.
Last modified on June 26, 2026.