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Clair vs LangWatch

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

Clair compared with LangWatch
DetailClairLangWatch
What it doesThe AI Clinical Reference Tool for Clinicians AI agent testing and evaluation that turns unpredictable agents into reliable production systems
StageNot given Growing
FoundedNot given Not given
Based inNot given NL
Pricing modelfreemium freemium
PricingNot given Free Developer plan forever with 50k events/month. Growth plan at €29/core-seat/month with 200k included events, then €5 per 100k additional events. Storage €3/GB beyond 30-day included retention. Enterprise with custom pricing.
Key features
  • Clinical Summary - guided search experience providing a summary of any disease or drug
  • Drug Interactions - interaction guidance for two or more drugs
  • Stewardship - treatment, dose and duration information based on infection and patient demographics
  • Med Review - evidence-based recommendations for patient care
  • ICD10 Codes - human-friendly definitions of ICD10 codes
  • My Documents Search - upload and search your own documents for a curated response
  • Open Search - ask any complex clinical question and get an instant, ultra-accurate answer
  • API integration with white label options
  • Agent simulations with simulated users
  • Red teaming and adversarial testing
  • LLM-based evaluation and scoring
  • Full production observability and tracing
  • Prompt versioning and A/B testing
  • Voice agent simulation and testing
  • Multi-modal evaluation
  • OpenTelemetry native instrumentation
  • Claude Code usage tracking
  • Enterprise SSO and RBAC
What makes it different
  • Trained on most up-to-date FDA and NIH data and latest clinical guidelines
  • Expert-curated data reviewed by clinical experts through thorough vetting process
  • Intelligent sourcing selects right source based on use-case and question nature
  • Zero hallucinations with semantic search algorithm
  • All answers include references to original clinical sources
  • Works framework-agnostically with any agent framework without rewrite
  • Simulations with real user behavior from scenario descriptions
  • Fully automated testing from PM goals to pull requests with Langy
  • Self-hosted, hybrid, or cloud deployment with full control
  • Production traces queryable at search speed with AI search
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)15 no change since last check53 no change since last check
Trust Flow (Majestic)2325
Citation Flow (Majestic)2145
Referring domains (Majestic)87852

4 details filled in for both companies.

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