AI tools for text to speech

NPCs that actually think

Managing multiple speech API accounts

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.

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

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

OpenAI TTS is the text-to-speech feature of the OpenAI Audio API, exposed through a speech endpoint that converts written text into lifelike spoken audio.

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.

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

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.

OpenVoice is an open-source instant voice cloning model created by researchers at MIT and Tsinghua University together with MyShell.

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

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.

Text-Generator gives you 100 free requests monthly to start