Faster Whisper High Performance Speech Transcription

---
name: "faster-whisper High-Performance Speech Transcription Engine"
slug: "faster-whisper-high-performance-speech-transcription"
description: "faster-whisper is a reimplementation of OpenAI's Whisper model using CTranslate2 that delivers up to 4x faster transcription with lower memory usage. It supports CPU and GPU inference with 8-bit quantization, batch processing, word-level timestamps, and VAD filtering for accurate speech-to-text conversion."
github_stars: 21865
verification: "security_reviewed"
source: "https://github.com/SYSTRAN/faster-whisper"
category: "Media & Transcription"
framework: "Multi-Framework"
tool_ecosystem:
  github_repo: "SYSTRAN/faster-whisper"
  github_stars: 21865
---

# faster-whisper High-Performance Speech Transcription Engine

faster-whisper is a reimplementation of OpenAI's Whisper model using CTranslate2 that delivers up to 4x faster transcription with lower memory usage. It supports CPU and GPU inference with 8-bit quantization, batch processing, word-level timestamps, and VAD filtering for accurate speech-to-text conversion.

## Installation

Use the upstream install or setup path that matches your environment:
- #### Use Docker
- pip install nvidia-cublas-cu12 nvidia-cudnn-cu12==9.*
- pip install faster-whisper
- pip install --force-reinstall "faster-whisper @ https://github.com/SYSTRAN/faster-whisper/archive/refs/heads/master.tar.gz"

Requirements and caveats from upstream:
- Python 3.9 or greater
- Unlike openai-whisper, FFmpeg does **not** need to be installed on the system. The audio is decoded with the Python library [PyAV](https://github.com/PyAV-Org/PyAV) which bundles the FFmpeg libraries in its package.
- GPU execution requires the following NVIDIA libraries to be installed:

Basic usage or getting-started notes:
- For reference, here's the time and memory usage that are required to transcribe [**13 minutes**](https://www.youtube.com/watch?v=0u7tTptBo9I) of audio using different implementations:
- | Implementation | Precision | Beam size | Time | VRAM Usage |
- | Implementation | Precision | Beam size | Time | RAM Usage |

- Source: https://github.com/SYSTRAN/faster-whisper
- Extracted from upstream docs: https://raw.githubusercontent.com/SYSTRAN/faster-whisper/HEAD/README.md

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/faster-whisper-high-performance-speech-transcription/)