A beginner's guide to the Force-Align-Wordstamps model by Cureau on Replicate

Published: (January 4, 2026 at 11:09 PM EST)
1 min read
Source: Dev.to

Source: Dev.to

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This is a simplified guide to an AI model called Force-Align-Wordstamps maintained by Cureau. If you like these kinds of analysis, you should join AImodels.fyi or follow us on Twitter.

Model Overview

force-align-wordstamps provides word‑level timestamp alignment between audio files and transcripts. Unlike similar solutions like whisper timestamped or whisperx, this model excels at matching existing transcripts to audio with high precision. Created by Cureau, it builds on stable‑ts technology to deliver reliable results even with background noise.

Model Inputs and Outputs

The model takes an audio file and a reference transcript text to generate precise word‑level alignments. This approach differs from pure transcription models by using the provided transcript as ground truth.

Inputs

  • Audio File – MP3 format audio input.
  • Transcript – Text string containing the known transcript.
  • Show Probabilities – Optional boolean flag to include confidence scores.

Outputs

The model returns a JSON object containing an array of words with their corresponding timestamps:

  • Word – Individual word from the transcript.
  • Start Time – Timestamp for word start.
  • End Time – Timestamp for word end.
  • Probability – Optional confidence score for each word.

Capabilities

The alignment system handles noisy audio and can accurately align transcripts even when the recording quality is suboptimal.

Read the full guide to Force-Align-Wordstamps

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