Comparator

Frase vs Scalenut vs Undetectable AI: 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
Frase
Frase

AI-powered SEO content optimization platform

Frase is an all-in-one AI-powered SEO and content optimization platform. It analyzes SERPs, generates optimized content briefs, and helps you write articles that rank at the top of search results.

Strengths

  • Complete automated SERP analysis of competitors
  • Detailed SEO content brief generation
  • AI writing assistant with real-time suggestions
  • Dynamic optimization score to guide writing

Limitations

  • No permanent free version (limited trial)
  • High pricing for small teams
  • Learning curve to master all features
  • Interface only in English

Pricing plans

  • 1 user seat
  • Unlimited AI words
  • Basic SEO + GEO optimization
  • Email support
  • 3 user seats
  • Advanced SEO + GEO research
  • 5 brand voice profiles
  • Content opportunities monitoring
  • Priority support
  • Everything in Professional
  • AI Search Tracking (250 prompts)
  • Track 3 brands on ChatGPT/Perplexity/Gemini/Claude
  • 6-month historical trends
  • Daily monitoring & alerts
  • Everything in Professional
  • Advanced AI Search Tracking (350 prompts)
  • 10 brands tracked
  • 24-month historical data
  • 5 user seats
  • Priority support
Scalenut
Scalenut

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
Undetectable AI
Undetectable AI

Humanize your AI content to bypass detection

AI content detection and humanization tool to make your texts undetectable by scanners.

Strengths

  • Simultaneous multi-source detection (GPTZero, OpenAI, etc.)
  • Effective humanization with refund guarantee
  • Also detects paraphrased content (QuillBot, Grammarly)
  • 50+ languages supported

Limitations

  • Using for academic cheating is discouraged
  • Variable humanization quality in French
  • Per-word pricing can get expensive
  • Monthly plans expire at end of month

Pricing plans

  • Détection IA gratuite
  • Humanisation test
  • Sans inscription
  • 10 000 mots/mois
  • Détection multi-sources
  • Humanisation IA
  • Extension Chrome
  • 20 000 mots/mois
  • Options de personnalisation
  • Détection illimitée
  • API compatible
  • Crédits sur mesure
  • Mots permanents
  • Support prioritaire
  • Contrôles données

General overview

Criterion
Frase
Scalenut
Undetectable AI
AI typeAI NativeAI EnhancedAI Enhanced
Country of origin🇺🇸 United States🇮🇳 India🇺🇸 United States
Year founded201620202023
Supported languages20+ languages7 languages19 languages
Free plan
No
No
Yes
API available

Detailed comparison

FeatureFraseScalenutUndetectable AI
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
20000 words/month
Browser Extension
Available
Not available
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