Skip to the shop floor

fastwrite vs Copix

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

fastwrite compared with Copix
Detailfastwrite logo fastwriteCopix logo Copix
What it doesAI writing assistant for academic papers integrated into Microsoft Word Your copywriting assistant for Claude, ChatGPT and Cursor that gives your AI the method for each piece and reviews every draft.
StageNot given Not given
FoundedNot given Not given
Based inDE Not given
Pricing modelFreemium Freemium
PricingNot given Basic: $9/month or $90/year. Complete: $29/month or $290/year. 14 days free trial on either plan. Complete includes 1,500 credits per month that roll over for up to 3 months (up to 4,500 total). Credit packs available for additional usage.
Key features
  • Search over 20 million scientific papers using natural language queries
  • Upload and chat with PDFs up to 1,000 pages per document
  • AI-powered sentence and paragraph completion in Word with source citations
  • Deep Review evaluation against nine university grading criteria
  • Automatic APA 7 citation formatting
  • Cross-document PDF search within entire project library
  • Connector integration with Claude and ChatGPT
  • Own-sources-only mode restricting generation to personal documents
  • Available on macOS, Windows, and Web App
  • Write with method for different content types (ads, pages, emails, posts, stories, offers)
  • Review drafts for AI voice, claims without proof, and missing CTAs before publishing
  • Save and reuse business brief (offer, buyer, voice, proof) across chats
  • SEO audit of live pages with on-page rules and AI search readiness
  • Check whether AI assistants cite your site versus competitors
  • Crawl sites up to 100 pages for SEO analysis
  • Identify unsourced claims, fake urgency, and ad policy violations
  • Unlimited use on Basic plan, no usage cap for writing and reviews
What makes it different
  • Integrated directly into Microsoft Word workflow without switching applications
  • Prevents plagiarism by automatically inserting citations and suggesting paraphrasing
  • Specifically optimized for academic writing using custom language models
  • Evaluates work against actual university grading criteria with specific improvement suggestions
  • All work remains private and never used for model training
  • No new app—works as a connector in the AI assistants you already use
  • Review checks every draft against your brief before you see it, fixing AI voice automatically
  • Engines measure against real results: live pages, AI citations, winning pages and ads in your niche
  • Five-minute setup, no technical skills needed; one connector URL in Claude and ChatGPT
Community votes00
DR (Domain Rating by Ahrefs)15 +1 (up) since last check13 +1 (up) since last check
Trust Flow (Majestic)177
Citation Flow (Majestic)2716
Referring domains (Majestic)15312

4 details filled in for both companies.

More alternatives to fastwrite More alternatives to Copix

Support