Two-person AI duet video generator in an orange recording booth
Add accurate, styled captions to any video in about a minute
Stage
Not given
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Founded
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Based in
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Pricing model
Paid
Freemium
Pricing
Not given
Free: unlimited SRT/VTT/TXT downloads, 30 transcription minutes daily, videos up to 10 minutes, 720p export with watermark. 7-day pass: $7.99 one-time for 120 transcription minutes, up to 30-minute videos, 1080p no watermark, AI translation, custom fonts. Pro: $14/month or $96/year (save 43%), 300 t
Key features
Upload two photos to generate a duet scene
Matte-orange recording booth setting with one microphone
AI scene composition using GPT Image 2
Motion transfer animation preserving original performance and audio
Vertical 9:16 MP4 output with audio
Generation time of 3–5 minutes
Optional styling notes for scene direction
Automatic credit refund on failed generation
Choice of 8-second or 15-second video length
No subscription required, pay-per-generation model
Word-by-word animated captions with synchronized timing
16 pre-made caption styles including Bold Pop, Karaoke, Highlight Box and Neon
Customizable fonts, colors, size and position
Support for 30+ languages
Export as SRT, VTT, TXT subtitle files
MP4 video export with burned-in captions
Editable captions with word-by-word control
AI translation into 27 languages
Upload custom fonts (TTF, OTF, WOFF, WOFF2)
Browser-based processing with no software installation
What makes it different
Preserves identity and recognizability of both performers across the duet
Enables duets between people in separate photos without manual editing
No subscription required; credits spent only when videos are generated
Video saved automatically to account; no other apps or accounts needed
All processing happens in your browser; videos never upload to servers
Free subtitle file downloads with no watermark; video export watermark only on free plan
Works entirely in browser with no account required for subtitle downloads
Automatic punctuation and accurate captions for clear speech with full editing control
Support for multiple video and audio formats in one tool
Hotel Lobby AI
Caption Generator