Whisper
OpenAI Whisper is a state-of-the-art open-source speech recognition model supporting 99 languages.
About Whisper
Whisper is OpenAI's open-source speech recognition model that transcribes audio into text with near-human accuracy. It was trained on 680,000 hours of multilingual audio data.
The model supports speech recognition, speech translation, language identification, and voice activity detection across nearly 100 languages. It handles various accents, background noise, and technical vocabulary.
Whisper is available as open-source software that can run locally, making it a popular choice for developers building transcription features without relying on cloud APIs.
Key Features
- ✓Speech Recognition: Transcribe audio to text with high accuracy
- ✓99 Languages: Support for nearly 100 languages and dialects
- ✓Translation: Translate speech from any language to English
- ✓Language Detection: Automatically identify the spoken language
- ✓Open Source: Free to use and run locally
- ✓Multiple Model Sizes: From tiny to large for different speed/accuracy tradeoffs
Pricing
| Plan | Price | Key Features |
|---|---|---|
| Open Source | See official pricing | All models, Local processing, No usage limits, Community support |
Some pricing plans have not been verified against official sources recently. Confirm on the official pricing page before purchasing.
Pros & Cons
✅ Pros
- ✅ Free and open source
- ✅ Runs locally without internet
- ✅ Excellent multilingual support
- ✅ Near-human accuracy
- ✅ Multiple model sizes
⚠️ Cons
- ⚠️ Requires significant compute for large models
- ⚠️ Not real-time without optimization
- ⚠️ Accuracy varies by language and audio quality
- ⚠️ No built-in speaker diarization
Use Cases
Audio Transcription
Transcribe meetings, interviews, lectures, and other audio recordings.
Video Subtitles
Generate accurate subtitles and captions for video content.
Translation
Translate spoken content from various languages to English text.
Voice Applications
Build voice-enabled applications with local speech recognition.
Alternatives
Frequently Asked Questions
What is Whisper?
Whisper is OpenAI's open-source automatic speech recognition system that transcribes audio in nearly 100 languages with high accuracy.
Is Whisper free?
Yes, Whisper is completely free and open source. You can run it locally on your own hardware.
What languages does Whisper support?
Whisper supports nearly 100 languages for transcription and can translate speech from any supported language to English.