Whisper Web vs Sumi

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

Whisper Web compared with Sumi
Detail	Whisper Web	Sumi
What it does	Privacy-first browser-based AI speech recognition powered by OpenAI's Whisper model	AI manga translator that re-letters your language into the art
Stage	Startup	Not given
Founded	2026	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Free: $0 - unlimited local transcription for files up to 200 MB / 20 minutes. Unlimited: US$20/month or US$10/month billed yearly - cloud transcription up to 10 hours / 5 GB, batch upload of 50 files, cross-device sync.	Free tier: 1 page without account, 5 pages on signup, 5 claimable daily. Pro: $6.99/month (1,500 pages/month). Pro+: $14.99/month (4,000 pages/month). Studio: $39.99/month (12,000 pages/month). Yearly billing available: Pro $69.99/year, Pro+ $149.99/year, Studio $399.99/year.
Key features	Browser-based speech recognition with no installation required Support for 99 languages with automatic language detection Local processing with WebGPU acceleration for privacy Multiple input options: microphone, file upload, URL/browser audio Export to multiple formats: TXT, JSON, SRT, VTT Works offline once the model is downloaded Cloud transcription for files up to 10 hours / 5 GB Batch upload and cross-device sync with Unlimited plan No account required to start transcribing	Instant page-by-page translation without uploading Works on pages requiring login Text erasing and re-lettering in artwork Native vertical CJK typesetting Offline translation on iPhone and iPad Batch translation up to 20 pages Works on 30 official publisher platforms Chrome, Firefox, Edge and Safari extensions Editable translations in reader
What makes it different	Privacy-first: free mode keeps all audio on your device with no server uploads Zero setup required - no downloads, API keys, or account needed Powered by OpenAI's state-of-the-art Whisper AI model GPU-accelerated processing with WebGPU for fast local transcription Supports 99 languages with automatic detection, no manual selection needed	Erases original text and re-letters into artwork instead of pasting white boxes Translates in-place on pages you're already reading without uploading chapters Fully offline translation on iPhone and iPad with no data leaving device One subscription across web, extensions, and all native apps
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)	14 −1 (down) since last check	18 +1 (up) since last check
Trust Flow (Majestic)	22	7
Citation Flow (Majestic)	33	24
Referring domains (Majestic)	159	70

5 details filled in for both companies.

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