# WhisperX

70x real-time transcription speed via batched inference on top of Whisper. WhisperX is free, with no paid plan attached, at github.com.

## Facts

- **Pricing tier:** Free
- **Works on:** CLI, Self-hosted
- **Works in browser:** No

## Capabilities

- 70x real-time transcription speed via batched inference on top of Whisper
- Adds wav2vec2 forced alignment for accurate word-level timestamps Whisper lacks natively
- Built-in speaker diarization and VAD preprocessing to cut hallucinations

## FAQ

### What is WhisperX?

WhisperX is listed under Speech & Transcription Engines, in the AI Models & Local Execution category on Flocci AI Tools. 70x real-time transcription speed via batched inference on top of Whisper. It is free, with no paid plan attached, and it lives at github.com.

### Is WhisperX free?

WhisperX is listed as fully free — there is no paid tier attached to it in the catalog. That makes it one of the 396 entries on Flocci AI Tools with no upgrade path built in.

### Can I use WhisperX in a browser, or is there an app?

WhisperX needs to be installed or self-hosted — it doesn't run in a browser tab. It is available on the command line and self-hosting.

### What can WhisperX do?

WhisperX does 3 things the catalog singles out: 70x real-time transcription speed via batched inference on top of whisper; adds wav2vec2 forced alignment for accurate word-level timestamps whisper lacks natively; built-in speaker diarization and vad preprocessing to cut hallucinations.

### What is the best free alternative to WhisperX?

NVIDIA Canary-Qwen 2.5B is the closest free alternative: it sits in the same Speech & Transcription Engines sub-category and is free. NVIDIA Parakeet, sherpa-onnx and faster-whisper also start free. The full list is on the alternatives page.

## Related

- [WhisperX alternatives](https://aitools.flocci.in/alternatives/whisperx)
- [Speech & Transcription Engines](https://aitools.flocci.in/category/ai-models-local-execution/speech-transcription-engines)
- [Best free speech and transcription engines](https://aitools.flocci.in/best/best-speech-transcription-engines)
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Source: Flocci AI Tools — https://aitools.flocci.in/tool/whisperx

Facts last verified: October 2026