1
Also covers ios and speech recognition · same kind of online tool
AI Dictation turns mixed Russian, Ukrainian, or Belarusian speech into text while preserving English work terms.
Alternatives
The Best CMU Sphinx Alternatives in 2026
12 alternatives2 free · 7 open source
Looking for something like CMU Sphinx? Here are 12 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 2 are free or have a free plan and 7 are open source.
About CMU Sphinxcmusphinx.github.io
VisitCMUSphinx is an open source speech recognition system for mobile and server applications.
Top picks at a glance
First suggestionAI DictationAI Dictation turns mixed Russian, Ukrainian, or Belarusian…Free or freemium optionSubtitle EditAn open-source subtitle editor with timing, text editing…Open source optionFunASRFunASR supports speech recognition training and inference…Another optionAutomatic Speech RecognitionThis speech recognition app transcribes audio uploaded as a…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | AI Dictation | Free trial | Not stated | Android, iOS, Web |
| 2 | Automatic Speech Recognition | — | Not stated | Web |
| 3 | FunASR | — | Yes | — |
| 4 | Vocova | — | Not stated | Web |
| 5 | Automatic Speech Recognition | — | Not stated | Web |
| 6 | shashikg/WhisperS2T | — | Yes | — |
| 7 | ggerganov/whisper.cpp | — | Yes | — |
| 8 | OpenQuack | — | Yes | macOS |
| 9 | Faster Whisper | — | Yes | — |
| 10 | Speech to Note | — | Not stated | Android, iOS, Web |
All CMU Sphinx alternatives
2
Automatic Speech Recognition
huggingface.co/spaces/hynt/k2-automatic-speech…Also covers speech recognition · same kind of online tool
This speech recognition app transcribes audio uploaded as a file, recorded by microphone, or provided through a URL.
3
Also covers speech recognition · open source
FunASR supports speech recognition training and inference, streaming, punctuation, diarization, and model serving.
4
Vocova
vocova.appAlso covers speech recognition · same kind of online tool
Vocova transcribes audio and video into text in more than 100 languages and accepts imports from named services.
5
Automatic Speech Recognition
huggingface.co/spaces/k2-fsa/automatic-speech-…Also covers speech recognition · same kind of online tool
This app transcribes audio files, microphone recordings, or audio URLs into written text.
6
Also covers speech recognition · open source
WhisperS2T is an optimized speech-to-text pipeline for the Whisper model with support for multiple inference engines.
7
Also covers speech recognition · open source
The whisper.cpp repository provides a C and C++ port of OpenAI’s Whisper model.
8
Also covers speech recognition · open source
OpenQuack provides local voice dictation on macOS, inserting Whisper transcripts at the cursor.
9
Also covers speech recognition · open source
Faster Whisper runs Whisper transcription through the CTranslate2 inference engine.
10
Speech to Note
speechtonote.comAlso covers ios · same kind of online tool
Speech to Note records speech, transcribes it, and organizes voice notes across Mac, Windows, mobile, and web.
11
Same kind of online tool · open source · free
An open-source subtitle editor with timing, text editing and speech recognition through supported local and online engines.
12
Same kind of online tool · open source · free
An open-source Linux and Sailfish OS application for offline speech recognition, text-to-speech and translation.
No alternatives match this filter.
Alternatives to similar tools
ggerganov/whisper.cpp24 alternativesFaster Whisper12 alternativesSpeech to Note24 alternativesSubtitle Edit7 alternativesshashikg/WhisperS2T24 alternativesAI Dictation24 alternatives
What is the best alternative to CMU Sphinx?
Based on features, tags and platforms, the closest alternatives to CMU Sphinx are AI Dictation, Automatic Speech Recognition, and FunASR.
Is there a free alternative to CMU Sphinx?
Yes. Subtitle Edit and Speech Note are free or offer a free plan.
Are there open-source alternatives to CMU Sphinx?
Yes: FunASR, shashikg/WhisperS2T, ggerganov/whisper.cpp, and OpenQuack.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative