Rev AI is the developer-facing platform of Rev.com, focused on delivering speech recognition as an API rather than as a consumer transcription app. It exposes two main speech-to-text paths: an asynchronous endpoint for pre-recorded files and a streaming endpoint for live audio, so teams can build anything from call-center analytics to real-time captioning. Transcripts come back with punctuation, casing, formatting, and word-level timestamps across more than 57 languages.
Beyond raw transcription, Rev AI bundles an "Insights" layer that runs natural-language processing on top of your audio: language identification, sentiment analysis, topic extraction, summarization, and translation. There is also a forced-alignment product that produces precise word-level timing, which is useful for captioning, karaoke-style media apps, search indexing, and accessibility features. The company advertises the lowest word error rate (WER) among major providers and publishes benchmark results, with models trained on a large human-verified speech corpus.
Because it is an API product, the typical customer is an engineering team embedding speech into an existing product. Rev AI emphasizes compliance and scale, citing SOC 2, HIPAA, GDPR, and PCI alignment, encryption in transit and at rest, global deployment options, and 99.99% uptime targets. Pricing is metered per minute of audio processed, with separate rates for the standard engine, foreign-language and Whisper models, and each add-on insight, plus volume-based enterprise contracts.
