AI Transcription Services for Audio & Video: Which is the Best?

Trained human transcriptionists are excellent at converting the speech in audio or video files to text. But if speed, scale, or affordability are your priority, artificial intelligence or AI transcription services may be a better option.





RevBlogResourcesOther ResourcesA.I. & Speech RecognitionAI Transcription Services for Audio & Video: Which is the Best?

AI transcription services use software trained on hundreds to thousands of hours of human speech. Transcription software like this is a popular choice among a variety of users, from podcasters, content creators, and journalists, to students and clerical workers. Experience the benefits of powerful AI transcription yourself by trying out Rev today.

To use Rev’s AI Transcription services, simply upload your audio or video files here – our powerful generative AI model quickly converts the audio and returns a transcript right back to you. Rev also offers our AI Transcription services through the Rev API for real-time transcription of Zoom calls and other recordings.

Rev’s automatic transcription service and Rev AI speech-to-text API offers the most accurate speech recognition in the world. Across a range of tests, Rev’s speech-to-text engine had an average error rate of just 14%. By comparison, our tests showed Amazon’s service error rate at 18.42%.

What Makes a Good AI Transcription Service?

Choosing to utilize an AI transcription service over human transcription depends on your needs and constraints such as deadlines and budgets. For example, if the accuracy of your transcription is the top priority, and time and money aren’t an issue – human transcription is the way to go.


The goal of every AI speech-to-text engine is the same – to recognize when a word is spoken, what the word is, and what the word isn’t. However, every AI is trained on different word sets and audio types, making the programming of each one slightly different. Most AI models are also backed by Automated Speech Recognition (ASR), which brings the benefit of speaker identification. This prevents the AI from “gluing together” sentences or snippets from different speakers.

The larger accuracy hurdle that AI transcription services must overcome is complex audio – files with background noise, heavy accents, and people talking over each other pose a much bigger challenge for AI models than human transcriptionists.

All of this being said, Rev’s generative AI has still outperformed other leading AI transcription models – when tested on 30 podcast recordings, Rev still achieved accuracy rates as high as 86%. Rev also recently beat out Google, Amazon, and Microsoft for ASR accuracy rates in internal tests.

Rev’s AI Transcription services beat out industry leaders like Google, Amazon, and Microsoft.


If your specific needs put speed of delivery above transcript accuracy, AI transcription services are a no brainer – Rev’s generative AI can deliver transcripts in minutes, not hours or days.

Simply upload your file to Rev’s AI Transcription Services checkout page, and receive your video or audio transcript within minutes. We’ll also send you an ETA once your uploaded file is received and processed.

API Access

Rev is excited to share our great speech-to-text API for developers. Compared to Google’s speech recognition API, Rev’s is cheaper, more accurate, and with more advanced speaker diarization for English, Spanish, Portuguese, French, and German audio.

Using an AI transcription service via an API saves time and increases the scale of what you can do. You can use an API to add automatic speech recognition to your website, app, or work software.


In addition to being fast and accurate, Rev’s AI Transcription Services come with all of the features you need to get the most out of your AI-generated transcript:

  • Choose your file format: Rev supports a wide range of file formats for returning your final transcript.
  • Refine your final transcript: Use our free transcript editor, which automatically syncs with your original audio or video file, to ensure maximum accuracy.
  • Search your transcript easily: Find the exact phrase or topic you’re looking for with search functionality.
  • Share your transcript with others: Rev offers multi-user access and sharing, allowing others to edit the transcript and keep everyone on the same page.

When You Might Prefer to Use Human Transcription

AI transcription services work best with as few speakers as possible and limited background noise. It is ideal for transcribing notes you’ve dictated for yourself or podcasts with limited overlapping speech.

Human transcription is preferable if the audio is complex with mixed accents, background noises, or lots of speakers. It is also preferable if accuracy is paramount, for example, for legal reasons or high-quality, customer-facing text. Law firms, market researchers, education providers, and video companies often favor human transcription.
Luckily for you, you don’t have to go far to find the best traditional transcription services, either. Rev’s top human transcription service guarantees a 99% accurate transcript. That means a maximum of 10 errors per 1,000 words. Plus, it’s fast and competitively priced.

Your Choice of AI Transcription Services

If you’re looking for the best AI transcription service for audio and video, Rev offers a few quick and cheap solutions. You can get your transcript in minutes by uploading files or pasting a URL to your original media.