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Libretto vs I am Vera

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

Libretto compared with I am Vera
DetailLibretto logo LibrettoI am Vera logo I am Vera
What it doesAutomatically fix failing Playwright scripts by investigating the live page and opening a GitHub pull request with a proposed code fix AI verification layer for professionals to check AI answers for facts, reasoning and sources
StageNot given Not given
FoundedNot given Not given
Based inNot given NL
Pricing modelFree Not given
PricingNot given Starter (Free): 10 checked questions/month; Essential €79/month (€66/month yearly): 50 questions/month; Professional €199/month (€166/month yearly): 300 questions/month, 5 users; Compliance €399/month (€333/month yearly): 1,000 questions/month, 25 users. Evidence Engine module €250/month (€209/month
Key features
  • Automatically investigates failing Playwright scripts against the live page
  • Opens GitHub pull requests with proposed code fixes
  • Works with any browser provider
  • Supports custom LLM provider API keys
  • Integrates into existing Playwright projects without changing fixtures
  • Multi-model fact checking with independent verification by different AI models
  • Critical counter-reading to identify weak assumptions and missing arguments
  • Source verification with current citations for claims
  • Visible verification trail showing every step and model disagreement
  • Semantic Privacy Shield for pseudonymisation of sensitive data
  • Vera Office for document analysis and editing with automatic checks
  • Vera X-Ray for local data discovery before sending to Vera
  • Transparent cost tracking per verification step
  • API integration for connecting to custom software
What makes it different
  • Keep existing Playwright scripts unchanged, only adding automatic repair after failures
  • Free to use, no charges from Libretto
  • Open source under MIT license
  • Uses multiple independent AI models to check each answer, preventing any single model from having the final word
  • Shows all model disagreements and corrections visibly rather than hiding them behind a confidence score
  • Transparent about limitations and does not claim to eliminate hallucinations
  • Built in the EU with data processing in customer-isolated environments
Community votes00
DR (Domain Rating by Ahrefs)29 +2 (up) since last check28 no change since last check
Trust Flow (Majestic)820
Citation Flow (Majestic)3135
Referring domains (Majestic)347135

3 details filled in for both companies.

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