Whisper Large V3

About this model

OpenAI Whisper Large V3 is a state-of-the-art automatic speech recognition model with 1550M parameters supporting 99 languages. Achieves 10-20% WER reduction compared to V2, trained on 1M hours weakly labeled + 4M hours pseudo-labeled audio. Features 128 Mel frequency bins (increased from 80), improved robustness to accents and background noise, and new Cantonese language support. Supports speech transcription and speech-to-English translation with sentence and word-level timestamps. Optimized with torch.compile for 4.5x speedup. Ideal for accessibility tools, multilingual transcription, and enterprise ASR applications.

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