Agent STT is a real-time speech-to-text API package built for AI voice agent workloads.
Agent STT is a speech-to-text API package purpose-built for voice agent workloads, delivering real-time transcription with low latency and exposing turn and speaker signals that help agents know when a user has finished speaking and who is speaking.
Introduced through the company's Linden model generation, it covers multiple languages and dialects and integrates through documentation and connectors with voice-agent frameworks including LiveKit, Pipecat, and Jambonz.
AssemblyAI
AssemblyAI Speech-to-Text API
assemblyai.com
Deepgram
Deepgram Speech-to-Text API
deepgram.com
ElevenLabs
ElevenAPI
elevenlabs.io
| Attribute | Agent STT | AssemblyAI Speech-to-Text API | Deepgram Speech-to-Text API | ElevenAPI | |
|---|---|---|---|---|---|
| Provider |  | | | | |
| Founded | 2006 | 2017 | 2015 | 2022 | |
| Sells To | — | — | Enterprise, Small Business | B2B, B2C, Enterprises | |
| Pricing Model | Recurring Subscription | — | Recurring, Software, Usage-based | B2B Subscription, Recurring, Usage-based | |
| Ownership | Private | Venture-backed | Venture-backed | Private, Venture-backed |
Provider
Founded 2006
Sells To —
Pricing Model Recurring Subscription
Ownership Private
Provider
Founded 2017
Sells To —
Pricing Model —
Ownership Venture-backed
Provider
Founded 2015
Sells To Enterprise, Small Business
Pricing Model Recurring, Software, Usage-based
Ownership Venture-backed
Provider
Founded 2022
Sells To B2B, B2C, Enterprises
Pricing Model B2B Subscription, Recurring, Usage-based
Ownership Private, Venture-backed
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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.
Developer API for streaming real-time speech-to-speech translation and dubbing over WebSocket.
Gemini Live API enables real-time voice and vision interactions through streaming conversational models.
Deepgram's Self-Hosted Speech-to-Text runs its speech recognition models on customer-controlled infrastructure.
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