The whisper.cpp project ports OpenAI’s Whisper speech recognition model to C and C++.
Kaldi
vsVosk
Kaldi vs Vosk
How do Kaldi and Vosk compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | Kaldi | Vosk |
|---|---|---|
| What it is | Kaldi provides an open toolkit for speech recognition and speech processing research. | Vosk provides an offline speech recognition API for mobile devices and servers, with several programming language interfaces. |
| Website | ||
| Type | Open-source project | Open-source project |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Linux, Windows | Android, iOS |
| Open source | Not stated | Yes |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both Kaldi and Vosk.
Open source
24 alternativesESPnet includes tools for end to end speech processing and related speech tasks.
Open source
24 alternativesThe wav2letter project provides an automatic speech recognition toolkit from Facebook AI Research.
The whisper-ctranslate2 command-line client works with the OpenAI Whisper client and uses CTranslate2.
Open source
24 alternativesSuperwhisper turns speech into polished text for use in apps such as Slack and Gmail, with recognition options listed for four operating systems.
NeMo Parakeet ASR Models attain strong speech recognition accuracy while being efficient for inference. Available in CTC and RNN-Transducer variants.







