AI Voice Agents

WhisperX alternatives

13 other speech-to-text listed here. WhisperX is open source.

Featured

Deepgram

Speech-to-text

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

Freemiumsttstreaming
Featured

OpenAI Whisper

Speech-to-text

Open-source multilingual speech recognition

Open sourcesttwhisper

Amazon Transcribe

Speech-to-text

AWS speech-to-text service

Paidsttaws

AssemblyAI

Speech-to-text

Speech-to-text API with audio intelligence

Freemiumsttdiarization

faster-whisper

Speech-to-text

Whisper reimplemented with CTranslate2

Open sourcesttwhisper

Gladia

Speech-to-text

Speech-to-text API for files and live audio

Freemiumsttstreaming

Google Cloud Speech-to-Text

Speech-to-text

Google Cloud speech recognition API

Freemiumsttgoogle-cloud

NVIDIA NeMo

Speech-to-text

NVIDIA framework for speech and language models

Open sourcesttnvidia

Rev AI

Speech-to-text

Speech-to-text API from Rev

Paidsttapi

Soniox

Speech-to-text

Speech recognition and translation API

Paidstttranslation

Speechmatics

Speech-to-text

Speech-to-text API with many languages

Paidsttmultilingual

Vosk

Speech-to-text

Offline speech recognition toolkit

Open sourcesttoffline

whisper.cpp

Speech-to-text

C and C++ port of Whisper

Open sourcesttwhisper