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Speech Generation vs Sumi

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

Speech Generation compared with Sumi
DetailSpeech Generation logo Speech GenerationSumi logo Sumi
What it doesFree AI text-to-speech generator with natural voices, no sign-up required, and commercial use included AI manga translator that re-letters your language into the art
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Freemium
PricingFree tier: 5,000 characters daily without sign-up, 10,000 with free account. Credit packs (one-time purchase, never expire): Mini $4.90 (200 credits), Starter $9.90 (700 credits), Pro $29.90 (2,120 credits), Ultimate $99.90 (7,100 credits). Premium voices cost 10 credits per 1,000 characters, ultra- 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
  • 34 AI voices across 18 languages
  • Free tier: 5,000 characters daily without sign-up
  • Download as MP3 or WAV files
  • Commercial use included on all tiers
  • Speed control from 0.75× to 1.5×
  • No account required to generate speech
  • Multiple TTS engines including Kokoro, ElevenLabs, and Fish Audio
  • Credit packs that never expire
  • Voice preview before generation
  • Automatic splitting and joining for long text
  • 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
  • No sign-up required to start using the tool
  • Commercial use rights included on free tier
  • Latest neural engines with realistic intonation and rhythm
  • Credits never expire when purchasing premium voices
  • Transparent credit-based pricing with no subscriptions required
  • 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 planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)22 +1 (up) since last check18 +1 (up) since last check
Trust Flow (Majestic)137
Citation Flow (Majestic)3224
Referring domains (Majestic)9070

5 details filled in for both companies.

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