Faster-Whisper

Faster-Whisper is a reimplementation of OpenAI's Whisper model using CTranslate2, a fast inference engine for Transformer models. With over 23,000 GitHub stars, it delivers up to 4x faster transcription than the original Whisper while using less memory. It supports 90+ languages, offers int8 and int16 quantization for reduced VRAM usage, and provides both Python API and CLI. Faster-Whisper maintains the same accuracy as vanilla Whisper while running efficiently on consumer GPUs with as little as 2GB VRAM. It includes batched processing, VAD-based segmentation, and word-level timestamps. The tool is widely used as the backbone engine in other transcription tools like WhisperX and WhisperDesktop.