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Cobalynx vs Rulebook

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

Cobalynx compared with Rulebook
DetailCobalynx logo CobalynxRulebook logo Rulebook
What it doesFree AI detector with published error rates Take your AI support bot from 4/10 to 10/10
StageNot given MVP
FoundedNot given 2026
Based inIT Not given
Pricing modelFree Free trial
PricingNo payment required. Free tier allows 10 certification requests per day per IP. Free during beta. After beta: $29/month (your own AI keys, unlimited runs) or $59/month (AI included, 50 runs/month).
Key features
  • Calibrated probability scores with published error rates
  • Inconclusive verdicts for borderline cases
  • Minimum 150 word requirement
  • Content Credentials (C2PA) file checking
  • Document metadata analysis
  • Free human-text certification with downloadable PDF badge
  • No signup or account required
  • Private processing with no data storage
  • Bot Score: rates bot performance across five dimensions (rules, facts, solutions, tone, trick resistance)
  • Break my bot: 15 adversarial customer scenarios test for vulnerabilities
  • Fix it for me: automatically rewrites rule sheet and tests against saved situations
  • Train my bot: 30-minute automated training on weak spots with test validation
  • GitHub integration: sends improvements as pull requests for engineer approval
  • Real chat analysis: identifies problems in actual customer conversations with privacy masking
  • Knowledge check: validates bot replies against FAQ and policy documents
  • AI comparison: test bot performance across Claude, ChatGPT, and Gemini with costs and speed
  • Open source engine: public GitHub implementation of scoring and testing algorithms
What makes it different
  • Published error rates with raw counts and confidence intervals
  • Designed to minimize false accusations rather than maximize detections
  • Measures ESL (non-native English) writer accuracy separately
  • Transparent verdicts: reports inconclusive when unsure instead of guessing
  • Nothing ships without engineer approval: all changes go through GitHub pull request review
  • Privacy by default: customer data anonymized, keys encrypted, uploads not stored
  • Open source testing engine: full algorithm transparency available on GitHub
  • Works with your existing AI: supports Claude, ChatGPT, and Gemini with user's own keys
  • Unified team experience: one plan covers support, product, and engineering roles
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)20
Citation Flow (Majestic)130
Referring domains (Majestic)10

5 details filled in for both companies.

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