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📖 The AI Tool Bible

GradGPT vs Merlin AI

A side-by-side look at pricing, capabilities, pros, cons, and our editorial scores.

 GradGPT logo
GradGPT
Writing
Merlin AI logo
Merlin AI
Writing
TaglineAI essay coach that scores and red-flags college application drafts against admissions rubrics.Browser-based multi-model AI assistant that puts GPT-4, Claude, and Gemini one keystroke away on any webpage.
CategoryWritingWriting
PricingFreemium· Free plan: $0 · GradGPT Plus yearly: $12/month · GradGPT Plus monthly: $36/monthFreemium· Basic: $10 · Pro: $30 · Enterprise: Contact sales
Model—Multi-model (GPT-4o, Claude 3.7, Gemini 2.5, Llama 3.1, Mistral, Deepseek)
Editorial score6.8 / 106.9 / 10
Use cases
college-essay-feedbackadmissions-prepcommon-app-essaysap-test-practicecollege-matching
webpage-summarizationyoutube-summariesemail-draftingmulti-model-chatimage-generationcontent-rewriting
Pros
  • Cheaper than a human admissions consultant for the same iteration loop
  • Rubric-based scoring grounded in real admit benchmarks
  • Free access path for low-income and Title I students
  • Covers the full app: essays, activities, AP prep, college match
  • One subscription unlocks 20+ frontier and open-source models side by side
  • Sidebar extension works on any webpage, including YouTube and Gmail
  • Generous free tier with unlimited YouTube summaries
  • Bundles image generation alongside text chat
Cons
  • Underlying model and methodology aren't disclosed
  • US admissions focus; thin value for international applicants
  • No API or programmatic access for schools or counselors
  • Risk of homogenized 'AI-flavored' essays if students over-rely
  • Thin wrapper over upstream APIs with no fine-tuning or training
  • No serious agentic or tool-use capabilities
  • Quality and rate limits depend on third-party provider quotas
  • Redundant if you already pay for ChatGPT Plus or Claude Pro
Websitegradgpt.comwww.getmerlin.in
Pick GradGPT if
  • ✅ Cheaper than a human admissions consultant for the same iteration loop
  • ✅ Rubric-based scoring grounded in real admit benchmarks
  • ✅ Free access path for low-income and Title I students
  • ✅ Covers the full app: essays, activities, AP prep, college match
Pick Merlin AI if
  • ✅ One subscription unlocks 20+ frontier and open-source models side by side
  • ✅ Sidebar extension works on any webpage, including YouTube and Gmail
  • ✅ Generous free tier with unlimited YouTube summaries
  • ✅ Bundles image generation alongside text chat
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