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Deepgram

Speech-to-text and text-to-speech APIs

Deepgram provides speech-to-text and text-to-speech APIs for batch and realtime audio. Its Nova models are built for low latency and are used in call transcription and voice agents.

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vs ElevenLabsvs LiveKit Agentsvs OpenAI Whispervs Twiliovs Vapivs Amazon Transcribevs AssemblyAIDeepgram alternatives

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OpenAI Whisper

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Open-source multilingual speech recognition

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Amazon Transcribe

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AssemblyAI

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Whisper reimplemented with CTranslate2

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Gladia

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Speech-to-text API for files and live audio

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Google Cloud Speech-to-Text

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Google Cloud speech recognition API

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