Updated in 2026.4 The table shows the cloud-based and on-premises TTS (Text-to-Speech) and STT (Speech-to-Text) providers supported by Cognigy Voice Gateway.Documentation Index
Fetch the complete documentation index at: https://docs.cognigy.com/llms.txt
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| Provider | Cloud-Based | On-Premises | ||
|---|---|---|---|---|
| TTS | STT | TTS | STT | |
| AWS | + | + | - | - |
| Deepgram | + | + | + | + |
| Deepgram Flux | - | + | - | - |
| ElevenLabs | + | + | - | - |
| + | + | - | - | |
| Microsoft | + | + | + | + |
| Nuance | + | + | + | + |
| Soniox | - | + | - | - |
| 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.