Audience
Users that need an AI-powered live captioning and subtitling tool
About Line 21
Line 21 provides AI-powered live captions and subtitles, ensuring seamless accessibility for live events, streaming platforms, and digital content. Our hybrid approach combines AI automation with human expertise, delivering high-accuracy captions that adapt to industry-specific terminology, accents, and niche references. By leveraging our AI Proofreader, we enhance real-time captions, reducing errors and making live experiences more inclusive and engaging.
Our solution is designed for event organizers, broadcasters, and language service providers who need scalable, cost-effective, and high-quality captions. Traditional human captioning is expensive and non-scalable, while ASR solutions often lack accuracy. Line 21 bridges this gap by offering real-time AI-enhanced captions that integrate seamlessly into event tech and streaming workflows.
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Pricing
Starting Price:
$0.09/min
Pricing Details:
Pay as you go
Integrations
Company Information
Line 21
Founded: 2023
United Kingdom
line-21.com
Videos and Screen Captures
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Product Details
Platforms Supported
Cloud
Training
Documentation
Live Online
Videos
Support
Online
Line 21 Frequently Asked Questions
Q: What kinds of users and organization types does Line 21 work with?
Line 21 works with these users and organization types: Mid Size Business, Small Business, Enterprise, Freelance, Nonprofit, Government, and Startup.
Q: What languages does Line 21 support in their product?
Line 21 supports these languages: English.
Q: What kind of support options does Line 21 offer?
Line 21 offers support via online.
Q: What other applications or services does Line 21 integrate with?
Line 21 integrates with: Deepgram, Facebook, Microsoft Teams, OpenAI, Twitch, Videolinq, YouTube, and Zoom.
Q: What type of training does Line 21 provide?
Line 21 provides training in the form of documentation, live online, and videos.
Q: How much does Line 21 cost?
Pricing for Line 21 starts at $0.09/min.
Line 21 Product Features
Speech Recognition
Audio Capture
Supported
Automatic Form Fill
Supported
Automatic Transcription
Supported
Call Analysis
Supported
Concatenated Speech
Supported
Continuous Speech
Supported
Customizable Macros
Supported
Multi-Languages
Supported
Specialty Vocabularies
Supported
Speech-to-Text Analysis
Supported
Variable Frequency
Supported
Voice Recognition
Not Supported
