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Fume vs Cobalynx

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

Fume compared with Cobalynx
DetailFume logo FumeCobalynx logo Cobalynx
What it doesAI QA team that creates and maintains Playwright end-to-end browser tests from video recordings Free AI detector with published error rates
StageNot given Not given
FoundedNot given Not given
Based inNot given IT
Pricing modelFree trial Free
PricingTeam Plan: $500/month (30 day free trial). Enterprise: custom pricing available upon contact. No payment required. Free tier allows 10 certification requests per day per IP.
Key features
  • Record videos to generate tests
  • Automatic test case extraction in seconds
  • AI agent fallbacks for broken tests
  • Twice-daily automated test runs
  • Free cloud test runners
  • 100% Playwright code ownership
  • CI/CD pipeline integration
  • Migrate existing tests
  • Self-healing test maintenance
  • Application exploration
  • 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
What makes it different
  • No QA work required - autonomous testing replaces entire QA team operations
  • Tests handle major UX changes agentically
  • Own 100% Playwright code with no vendor lock-in
  • Cover 80% of user flows in under 10 minutes
  • Free cloud infrastructure included
  • 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
Community votes00
DR (Domain Rating by Ahrefs)16 no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)52
Citation Flow (Majestic)2913
Referring domains (Majestic)1331

5 details filled in for both companies.

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