The World’s Most Accurate Speech-To-Text API
A developer-first API delivering industry-leading accuracy and fast performance at global scale.
Built For Accuracy, Speed, & Global Scale
Speech-to-Text
Get machine-generated transcripts in minutes from pre-recorded files or in real-time as audio streams. High accuracy across 57+ languages with proper grammar, punctuation, and formatting.
Lowest Word Error Rate (WER)
Rev AI consistently outperforms competitors in accuracy for virtually every use case. Our proprietary models are trained using a carefully selected subset from a library of over 7M hours of human-verified speech data, giving us unmatched precision and adaptability.
Least Biased
Our WER is significantly lower than the competition across ethnic background, nationality, gender, and accent—ensuring fair, accurate transcription for all voices.
Developer-Friendly Integration
Get up and running in under an hour with our easy-to-use API, comprehensive SDKs, and expert support. Deploy in the cloud or on-prem.
AI Insights
Go beyond transcription with language identification, sentiment analysis, topic extraction, summarization, and translation. Turn voice content into actionable intelligence.
Enterprise-Grade Security
Handle sensitive data with confidence. SOC II, HIPAA, GDPR, and PCI compliant with 99.99% uptime. All files encrypted at rest and in transit.
Forced Alignment / Precision Timestamps
Enhance content searchability and analysis with precise word-level timestamps. Perfect for media applications, accessibility, and content indexing.
Global Language Coverage
Serve customers worldwide with 57+ languages and context-aware translations. Meet demand in new markets with consistently low WER.
