OpenSubs vs Seedance AI

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 Seedance AI
Detail	OpenSubs	Seedance AI
What it does	Free AI subtitle generator that runs entirely in your browser	Generate professional videos from text prompts or images with cinematic camera movements and multi-shot storytelling
Stage	Not given	Not given
Founded	Not given	Not given
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).	Monthly plans: Plus $14.90/month (1000 credits/month, up to 100 videos/month), Pro $24.90/month (2500 credits/month, up to 250 videos/month), Max $49.90/month (6000 credits/month, up to 600 videos/month), Super Plan $89.90/month (12000 credits/month, up to 1200 videos/month). Annual plans available
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	Text-to-video generation with cinematic quality Native audio generation with lip sync and dialogue Director-level camera control Multi-reference creative control with up to 12 reference materials Video editing and extension capabilities Physics-accurate motion with 31.7% improvement over previous versions Multiple resolution options up to 720p across 6 aspect ratios Access to multiple AI video models including Veo 3.1 and Sora 2 AI image generation with multiple models Commercial use license included
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	First unified multimodal model treating text, image, video, and audio as equally valid inputs Native audio generation eliminating need for post-production audio work Top performance on Artificial Analysis Video Arena Leaderboard Professional quality rivaling traditional film production at a fraction of the cost Draft preview feature to preview visuals and motion before final generation
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	29 +1 (up) since last check
Trust Flow (Majestic)	10	10
Citation Flow (Majestic)	30	28
Referring domains (Majestic)	96	86

4 details filled in for both companies.

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