WhisperX Review

What we know about WhisperX

WhisperX sits in the speech-to-text apis category, where it is whisper + forced alignment + diarization pipeline for accurate word timestamps. We keep this WhisperX profile grounded in primary sources, each fact dated to when we last confirmed it.

WhisperX does not publish a public per-minute rate we have been able to verify, so the price figure here stays blank until we can confirm one. We would rather show nothing than a guessed number; if you have a current WhisperX quote, it is the fastest way for us to close that gap.

On capabilities, WhisperX covers language auto-detection, word-level timestamps, and self-host / on-prem option, and does not offer websocket streaming api. Each of those is verified against WhisperX's own docs or dashboard, not marketing copy.

In total we track 12 verified facts for WhisperX today, each linking the primary source it came from so you can check our work - and vendor claims we have not measured ourselves are labeled as such on the WhisperX fact sheet below.

Reviewed by vsref Editorial·facts verified Jul 20, 2026·Methodology →