OpenSubs vs Chorumi

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

OpenSubs compared with Chorumi
Detail	OpenSubs	Chorumi
What it does	Free AI subtitle generator that runs entirely in your browser	AI stem splitter and music production studio for producers
Stage	Not given	Startup
Founded	Not given	2026
Based in	Not given	Not given
Pricing model	Not given	Freemium
Pricing	Free: transcription, translation on-device, all 12 subtitle styles, word-by-word highlighting, trimming, burning into video, and all export formats. Credits: $5 for 1,000 credits for cloud translation (approximately 1 credit per 30 subtitle lines).	Starter: $9.99/month (500 credits/month); Pro: $24.99/month (1,500 credits/month); Studio: $49.99/month (4,000 credits/month). One credit buys: Producer tag (Pro voice) 1 credit, AI producer tag 6 credits, Stem split 12 credits, Full AI song 15 credits. One-time credit packs available, never expire.
Key features	Speech recognition in the browser using Whisper Translation to 20 languages including Chinese, Japanese, Korean, Spanish, Portuguese, French, German, Italian, Russian, Arabic, Hindi, Indonesian, Thai, Vietnamese, Turkish, Polish, Dutch and Ukrainia Burn subtitles into MP4 without watermark Export to SRT, VTT, ASS and TXT formats Live subtitles over video playing in browser tabs via extension Support for multiple video formats including MP4, MOV, WebM and MKV No server processing—all work runs locally on user's machine	Split songs into 2, 4, or 6 stems (vocals, drums, bass, guitar, piano) Download stems as MP3 or WAV AI music generator with chat refinement Producer tag generation with voice effects BPM and key detection Pitch and tempo shifting without DAW Works on mobile browser, no app installation needed AI lyric generator Processing on local device for privacy
What makes it different	100% browser-based with no uploads—the video never leaves your machine Completely open source under AGPL-3.0-or-later so you can verify the code Free forever for transcription, styling and burning—pay only for optional cloud translation No watermark, no file-size limit, no queue, and no account needed to try	One unified credit system for all tools and features Automatic refund for failed jobs Built by music producers for producers
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	34 −1 (down) since last check	13 no change since last check
Trust Flow (Majestic)	10	9
Citation Flow (Majestic)	30	24
Referring domains (Majestic)	96	10

4 details filled in for both companies.

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