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Copy.ai vs Grammarly vs Scalenut: Complete Comparison 2026
Select a category, then compare up to 3 tools side by side. Analyze features, pricing, and performance.

AI writing platform for marketing and sales teams
Copy.ai is an AI-powered platform that automates marketing content creation. With 90+ templates and a powerful workflow builder, it generates emails, blog posts, social media content, and product descriptions in seconds. Perfect for marketing teams looking to scale their content production.
Strengths
- 90+ templates for all types of marketing content
- Powerful Workflow Builder for scaling production
- Multi-model AI support (GPT-4, Claude, Gemini)
- Brand Voice to maintain tone consistency
Limitations
- High pricing for small businesses (starting at $29/month)
- Growth/Scale plans for large teams only ($1000+/month)
- Learning curve to master the Workflow Builder
- Variable quality depending on content types
Pricing plans
- 5 sièges inclus
- Mots illimités dans le chat
- Projets de chat illimités
- Accès aux modèles OpenAI, Anthropic et Gemini
- Templates de base
- 75 sièges inclus
- Mots illimités dans le chat
- 20K crédits workflow/mois
- Workflow Builder
- Brand Voice
- Infobase
- Intégrations avancées
- 150 sièges inclus
- Mots illimités dans le chat
- 45K crédits workflow/mois
- Toutes les fonctionnalités Growth
- Support prioritaire
- 200 sièges inclus
- Mots illimités dans le chat
- 75K crédits workflow/mois
- Toutes les fonctionnalités Expansion
- Account manager dédié
- Sièges illimités
- Implémentation guidée
- Accès API et exécutions bulk
- 20+ intégrations tech
- Workflows personnalisables illimités
- Équipe compte et support dédiée
- Protocoles de sécurité enterprise

AI writing assistant for flawless writing
Grammarly is the world's #1 AI writing assistant. Grammar correction, style suggestions, plagiarism detection, and GrammarlyGO generative AI. Used by 40M+ people.
Strengths
- Accurate real-time grammar correction
- GrammarlyGO for AI content generation
- Extensions for all browsers
- Tone detection and style suggestions
Limitations
- Only available in English
- Advanced features are paid
- Plagiarism detector limited to Premium
- Can be intrusive for some users
Pricing plans
- Basic grammar and spelling
- Tone detection
- Basic punctuation
- Limited suggestions
- All Free features
- Full sentence rewrites
- Word choice improvements
- Tone adjustments
- Plagiarism detector
- Fluency suggestions
- Formatting recommendations
- GrammarlyGO AI writing
- All Premium features
- Custom Brand Voice
- Team style guides
- Admin dashboard
- Writing analytics
- Priority support
- SSO & SCIM provisioning
- Account roles and permissions
- All Business features
- Dedicated account manager
- Custom contracts
- Advanced security controls
- SAML SSO
- Custom analytics & reporting
- Professional services

AI-powered SEO writing and optimization platform
Scalenut is an all-in-one AI platform combining content writing, keyword research and SEO optimization to boost organic visibility.
Strengths
- Cruise Mode for ultra-fast writing (< 5 minutes)
- Advanced NLP semantic term analysis
- 40+ content templates
- Built-in content audit
Limitations
- English-only interface
- Variable backlinks marketplace quality
- Less known than Surfer or Semrush
- Limited support on Starter plan
Pricing plans
- 10 prompt tracking/sem
- ChatGPT & Google AIO
- 1 workspace
- 5 articles GEO/mois
- 5 optimisations/mois
- Planificateur mots-clés basique
- 25 prompt tracking
- 2 workspaces
- 30 articles GEO/mois
- 30 optimisations/mois
- Audit contenu 200 pages/mois
- 4 membres équipe
- Backlinks marketplace
- Analyseur trafic
- Liens internes
- 100 prompt tracking
- ChatGPT, Google AIO & Perplexity
- Workspaces illimités
- 75 articles GEO/mois
- 75 optimisations/mois
- Audit 1000 pages/mois
- Membres illimités
- Planificateur avancé
- Analyse cannibalisation
- CSM dédié
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