Two-person AI duet video generator in an orange recording booth
Free word-by-word caption generator that runs in your browser with no uploads or watermarks
Stage
Not given
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Founded
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Based in
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BD
Pricing model
Paid
Freemium
Pricing
Not given
Free: unlimited videos, Classic and Lyrics styles, MP4/SRT/VTT export with no watermark. Pro: $19/year (limited-time launch price), $3.99/month, or $59 lifetime. Pro unlocks 100+ caption styles, auto emoji, smart highlights and filler-word cleanup.
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 caption timing: each word gets its own start and end time, grouped into short captions
100+ caption styles including Classic, Lyrics, Glide, Neon, Sing-Along, and more
On-device transcription using OpenAI's Whisper model with no server uploads
Export as MP4, SRT and VTT subtitle files
Pro: Auto emoji feature that matches captions to 350+ keywords
Pro: Smart highlights to emphasize key words in each caption
Pro: Filler-word cleanup to hide "um", "uh" and "hmm"
Import custom SRT subtitles and apply caption styles
Lyric video mode with words timed to vocal instead of speech
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
Completely free with no watermarks for unlimited videos using Classic and Lyrics styles
No uploads: everything runs in your browser on your own device, keeping your video private
Works offline after initial load, with speech model cached locally on your device
Exports finished MP4 videos with burned-in captions, not just subtitle files
Low price for Pro: $19/year launch offer is far cheaper than competitors like Submagic and VEED
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