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AI Detector Writer vs Curbi

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

AI Detector Writer compared with Curbi
DetailAI Detector Writer logo AI Detector WriterCurbi logo Curbi
What it doesFree AI content detector to identify AI-generated text from ChatGPT, Gemini and other models Check AI agent replies against configured rules and verify signed records
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFree Freemium
PricingNot given Free: local open-source checker, browser policy checks, six read-only MCP tools, regression export and offline verification. Managed Check API: $1 per 1,000 checked replies, USD, monthly usage billing through Stripe.
Key features
  • Batch file upload for multiple documents
  • Highlighted sentences showing AI contribution ratio
  • High precision model trained in all languages
  • Automatic PDF report generation
  • Support for .txt, .md, and .csv file formats
  • Real-time detection results
  • Multi-language support for content analysis
  • Check agent replies against configured pricing, forbidden phrases, and action records
  • Policy Check tool with browser interface for testing rules
  • Model Context Protocol endpoint for Claude, ChatGPT and other MCP clients
  • Offline verification with signed records and Merkle proofs
  • Repair Lab for reproducing and fixing integration failures
  • Managed Check API with pricing transparency
  • MIT-licensed open-source local checker
  • Framework connectors for LangChain and Vercel AI SDK
  • MCP Chaos proxy for testing agent behavior
What makes it different
  • Completely free with no limitations on usage
  • Detects AI from multiple models including GPT-4, GPT-5, and Gemini
  • Supports all world languages with high accuracy
  • Verifiable AI agent compliance without authorization or permission granting
  • Evidence and records portable across platforms and models
  • Transparent per-reply pricing with clear usage examples
  • Open-source core with portable verification
Community votes00
DR (Domain Rating by Ahrefs)17 −1 (down) since last checkNot checked yet no change since last check
Trust Flow (Majestic)220
Citation Flow (Majestic)290
Referring domains (Majestic)4880

4 details filled in for both companies.

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