AI caption and subtitle generator that adds captions to videos in seconds with no watermark
AI courseware and product video generation platform
Stage
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Founded
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Based in
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CN
Pricing model
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Freemium
Pricing
Free: 30 minutes of captions per month, 1080p MP4 export up to 3 minutes, 8 caption styles, SRT/VTT/TXT downloads up to 30 minutes, free translation into 100+ languages. Pro: $6.99/month (limited-time price, normally $9.99) or $59/year, unlimited captions on videos up to 90 minutes, all 22 caption s
Free guest trial models (Agnes Image 2.5, Agnes Video 2.5 Flash) with 3 watermarked previews per day at 1K resolution. Subscriptions: Starter $9.99/month (1200 monthly credits), Pro $29/month (3500 monthly credits). One-time credit packs: Quick Pack $4.99 (600 credits), Creator Pack $19.99 (2400 cre
Key features
Automatic speech transcription in 100 languages with automatic language detection
SRT, VTT and TXT subtitle file downloads
Free translation into 100+ languages
Copy caption style from screenshot functionality
Bilingual captions showing two languages simultaneously on Pro
Video processing entirely in browser with audio-only server transmission for privacy
Word-level timing synchronization for precise caption timing
Text-to-video and image-to-video generation with multiple AI models
Outline-to-storyboard workflow for course videos
Reference-image consistency for product videos
Public gallery with prompt copying and remixing
Image generation and editing tools
REST API with webhook support and automation
Multiple premium AI video models including Seedance 2.5, Kling v3 Omni, and Veo 3.1
Free guest trial models with 3 watermarked previews per day
PWA installation for iOS and Android
Support for English and Chinese languages
What makes it different
Fastest among 10 tested caption tools, 6.7× faster than CapCut and 4.7× faster than VEED
Highest accuracy with 5.7% word error rate in October 2026 accuracy test of 8 caption tools
Video stays entirely private with only audio sent for transcription
Specialized for two specific jobs: turning teaching outlines into consistent course video series and converting product photos into SKU-consistent shoppable videos
Reference-image consistency ensures generated product videos maintain the same SKU appearance
Multiple AI models in one workflow with production evidence recording
Community gallery with prompt remixing and visual assets for workflow support
REST API for integrating generation workflows into customer systems
Captions Generator
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