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Cobalynx vs Rystic

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 Rystic
DetailCobalynx logo CobalynxRystic logo Rystic
What it doesFree AI detector with published error rates Realistic API simulators for training and testing
StageNot given Not given
FoundedNot given Not given
Based inIT US
Pricing modelFree Freemium
PricingNo payment required. Free tier allows 10 certification requests per day per IP. Free: $0 with GitHub, Linear and Slack simulators, 10 free hours per month. Pro: $89.99 per seat per month with full catalog, $100 usage credit per seat, $0.012 per simulator-minute after credit. Enterprise: custom pricing.
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
  • Slack simulator
  • GitHub simulator
  • Stripe simulator
  • Kalshi simulator
  • Verified against live APIs
  • Latency and fault injection
  • Settable state
  • Local and CI execution
  • Verified UIs
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
  • Validated against real APIs daily with published accuracy percentages
  • Stateful simulators that maintain state across calls
  • Local execution with no rate limits
  • Supports 20+ API integrations including Stripe, GitHub and Slack
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last check2 no change since last check
Trust Flow (Majestic)213
Citation Flow (Majestic)1330
Referring domains (Majestic)141

6 details filled in for both companies.

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