Comparator

QuillBot vs Sudowrite: Complete Comparison 2026

Select a category, then compare up to 3 tools side by side. Analyze features, pricing, and performance.

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Writing & SEO18 tools available
QuillBot
QuillBot

AI-powered paraphrasing and writing tool

QuillBot is an AI writing assistant offering paraphrasing, grammar checking, plagiarism detection and automatic summarization.

Strengths

  • Powerful paraphraser with 10+ modes
  • Generous free plan to get started
  • Popular Chrome extension (4.5M+ users)
  • Reliable plagiarism detection

Limitations

  • Limited features in free version
  • No built-in SEO tools
  • Plagiarism check limited to 25,000 words/month on Premium
  • Less suited for long-form writing

Pricing plans

  • Paraphrase jusqu'à 125 mots
  • Vérification grammaticale basique
  • 1 scan plagiat
  • Extension Chrome
  • Paraphrase illimitée
  • 10+ modes de réécriture
  • Vérificateur grammatical avancé
  • 25 000 mots/mois plagiat
  • Résumeur jusqu'à 6 000 mots
  • Traducteur 50+ langues
  • Détecteur IA
  • Générateur de citations
  • Humaniseur de texte
  • Toutes les fonctionnalités Premium
  • Tarif réduit étudiant vérifié
  • Toutes les fonctionnalités Premium
  • Contrôles centralisés
  • Guides de style partagés
  • Collaboration d'équipe
Sudowrite
Sudowrite

The AI writing assistant for fiction authors

Sudowrite is an AI writing tool specifically designed for fiction writers, with unique features for developing plots, characters, and style.

Strengths

  • Muse model optimized for fiction
  • Story Bible for narrative consistency
  • Automatic Show not Tell tools
  • Complete chapter generation

Limitations

  • Limited to fiction - not ideal for non-fiction
  • English only
  • Credits can run out quickly
  • Learning curve to exploit all features

Pricing plans

  • 10K crédits offerts
  • Accès à tous les outils
  • Sans carte bancaire
  • 225K crédits/mois
  • Write (guidé/auto)
  • Rewrite
  • Brainstorm
  • Story Bible
  • Application mobile
  • 1M crédits/mois
  • Tous les outils Hobby
  • Draft (générateur chapitres)
  • Shrink Ray
  • Twist
  • Support prioritaire
  • 2M crédits/mois
  • Tous les outils Pro
  • Crédits rollover 12 mois
  • Modèles IA premium
  • Support VIP

Add a 3rd (⌘K)

General overview

Criterion
QuillBot
Sudowrite
AI typeAI EnhancedAI Native
Country of origin🇺🇸 United States🇺🇸 United States
Year founded20172020
Supported languages23 languages1 language
Free plan
Yes
Yes

Detailed comparison

FeatureQuillBotSudowrite
Brand Voice
Unlimited words
Marketing templates
Campaign orchestration
Knowledge base
AI Writing
SEO Optimization
Plagiarism detection
Tone adjustment
Multilingual Writing
Content templates
Keyword research
SERP analysis
Word Limit
2000000 words/month
Browser Extension
Available
Not available
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