Deepslate Opal
Provider 
Founded 2024
Sells To Developer
Pricing Model Usage-based
Ownership Venture-backed
Deepslate Opal
ProductOperating Status: Currently Offered
Deepslate Opal processes speech directly to power real-time voice conversations.
Deepslate Opal processes speech directly to power real-time voice conversations.
Deepslate Opal is a speech-to-speech model that accepts audio input and generates audio responses. Its architecture combines a speech encoder, reasoning component, and speech decoder.
The model supports European languages and is available through Deepslate's API, SDKs, and integration tools. Deployment options include European hosting and self-hosting for enterprise customers.
| Attribute | Deepslate Opal | Amazon Nova Sonic | Gemini Live API | OpenAI Realtime API | |
|---|---|---|---|---|---|
| Provider | |  |  |  | |
| Founded | 2024 | 1994 | 1998 | 2015 | |
| Sells To | Developer | Consumers, Enterprise, Individuals | Enterprises, Individuals | Enterprises, Individuals | |
| Pricing Model | Usage-based | Advertising, Recurring, Transactional | Advertising, Subscription | Subscription, Usage-based | |
| Ownership | Venture-backed | Public | Subsidiary | Private |
Provider
Founded 2024
Sells To Developer
Pricing Model Usage-based
Ownership Venture-backed
Provider
Founded 1994
Sells To Consumers, Enterprise, Individuals
Pricing Model Advertising, Recurring, Transactional
Ownership Public
Provider
Founded 1998
Sells To Enterprises, Individuals
Pricing Model Advertising, Subscription
Ownership Subsidiary
Provider
Founded 2015
Sells To Enterprises, Individuals
Pricing Model Subscription, Usage-based
Ownership Private
Developer platform providing real-time and batch APIs for speech-to-text, text-to-speech, and voice agents.
Deepgram's Text-to-Speech API generates streamed spoken audio for enterprise voice-agent applications.
Sesame CSM is an open-source conversational speech generation model that produces context-aware, expressive speech from text and audio inputs.
Developer API platform for production-ready speech, transcription, music, agents, and audio generation.
Deepgram's Speech-to-Text API is a conversational speech recognition service in real-time and pre-recorded modes.
Developer platform providing real-time and batch APIs for speech-to-text, text-to-speech, and voice agents.
Deepgram's Text-to-Speech API generates streamed spoken audio for enterprise voice-agent applications.
Sesame CSM is an open-source conversational speech generation model that produces context-aware, expressive speech from text and audio inputs.
Developer API platform for production-ready speech, transcription, music, agents, and audio generation.
Deepgram's Speech-to-Text API is a conversational speech recognition service in real-time and pre-recorded modes.