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fastwrite vs WriteHuman

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 WriteHuman
Detailfastwrite logo fastwriteWriteHuman logo WriteHuman
What it doesAI writing assistant for academic papers integrated into Microsoft Word AI text humanizer that makes generated content sound naturally human
StageNot given Not given
FoundedNot given Not given
Based inDE US
Pricing modelFreemium Freemium
PricingNot given Free plan with 3 humanizer requests/month and 10 detection checks/month. Basic: $12/month ($144/year, save $96/year) with 160 AI detection checks/month, 80 enhanced model checks/month, up to 600 words per request, 80 image scans/month. Pro: $19/month ($228/year, save $120/year) with 400 AI detection
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
  • Multi-model AI detection for ChatGPT, GPT-4, Claude, Gemini, and other LLMs
  • Sentence-level breakdown showing which passages are most machine-generated
  • Overall AI probability score with per-class confidence levels
  • Voice preservation to maintain tone and style through humanization
  • Multiple output variations for different writing styles
  • AI image detection for DALL-E, Midjourney, Stable Diffusion, and other generators
  • Support for 40+ languages including English, Chinese, French, Spanish, and more
  • Chrome extension for in-tab humanization and detection
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
  • Detects AI from major models like GPT-5, Claude Opus, Gemini Pro, Grok, DeepSeek, Llama, and Qwen
  • Sentence-level analysis shows exactly which parts triggered AI detection
  • Privacy-first with encrypted transit and rest, never selling data to advertisers
  • Humanizer preserves voice, tone, and meaning while removing AI patterns
  • Scans complete in 2-5 seconds with instant results and no queues
Community votes00
DR (Domain Rating by Ahrefs)15 +1 (up) since last check59 +1 (up) since last check
Trust Flow (Majestic)1745
Citation Flow (Majestic)2740
Referring domains (Majestic)1531024

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