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AI Detector Writer vs COLVO

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 COLVO
DetailAI Detector Writer logo AI Detector WriterCOLVO logo COLVO
What it doesFree AI content detector to identify AI-generated text from ChatGPT, Gemini and other models Test and guard AI agents with outcome verification, not reply verification
StageNot given Not given
FoundedNot given Not given
Based inNot given IT
Pricing modelFree Freemium
PricingNot given Free: €0/month with 100 test runs per month; Test: €19/month with 2,000 runs per month; Guard: €99/month with unlimited runs plus live guard features. AI usage is metered separately at cost.
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
  • Isolated sandbox with fresh fake accounts for testing
  • 88 scenario templates for refunds, cancellations, pauses and plan changes
  • CI gate and CLI with dependency-free deployment
  • Policy gate with ALLOW/REVIEW/HOLD/DENY decisions
  • Human approval for risky actions
  • Independent verification of outcome against ground-truth state
  • Guardrails with prompt injection and PII detection
  • Per-end-user spending caps in rolling windows
  • Append-only evidence log with JSON, CSV and PDF export
  • GitHub Action integration for automated testing
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
  • Deterministic verdicts from explicit state checks, not language model decisions
  • No-cost deterministic testing; AI features are optional and separately metered
  • Integrated sandbox testing and production guarding in one platform
  • Idempotent and exactly-once action execution with retry safety
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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