AI tools for voice assistance

The OpenAI Realtime API is a developer interface for building voice agents that listen and speak in real time.

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Hume EVI, the Empathic Voice Interface, is a voice AI API for building agents that pick up on how a person sounds as well as what they say.

Pipecat is an open-source Python framework for building voice and multimodal AI agents that talk in real time.

LiveKit Agents is an open source framework and cloud platform for building voice, video and physical AI agents and running them in production.

The Deepgram Voice Agent API is one real-time API that combines speech recognition, language model orchestration and speech synthesis, so developers do not have to stitch separate services together.

Deepgram is a voice AI platform that exposes speech-to-text, text-to-speech and conversational agents through APIs.

Microsoft Copilot is an AI-powered chat assistant utilizing advanced AI technologies, such as OpenAI models GPT-4 and DALLE 3. These technologies enable Copilot to deliver fast, sophisticated, and acc

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Kokoro is an open-weight text-to-speech model with 82 million parameters.

Piper is a fast, local neural text-to-speech engine that converts text into spoken audio on your own hardware, with no cloud service involved.

ElevenLabs API is a developer interface to the company's audio models.

Microsoft Azure AI Speech, now branded Azure Speech in Foundry Tools, is a cloud service for adding voice to applications and agents.

Amazon Polly is a fully managed Amazon Web Services product that converts text into spoken audio on demand.

Google Cloud Text-to-Speech is an API that turns written text into natural-sounding speech using Google's AI speech synthesis research.