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Langtail vs Agent Evidence Recorder

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

Langtail compared with Agent Evidence Recorder
DetailLangtail logo LangtailAgent Evidence Recorder logo Agent Evidence Recorder
What it doesPrompt management platform for building, testing, and deploying AI prompts collaboratively Audit-ready evidence layer for AI agent runs
StageNot given Not given
Founded2023 Not given
Based inCZ Not given
Pricing modelNot given Free
PricingFree plan: $0/month with unlimited users, 2 prompts or assistants, 1,000 logs per month, 30 days data retention. Pro: $99/month + VAT for 1 user, 20 prompts or assistants, unlimited logs, 90 days data retention. Team: $499/month + VAT for 10 users, unlimited prompts or assistants, unlimited logs, 1 Not given
Key features
  • Spreadsheet-like interface for managing prompts with no coding required
  • Natural language evaluation, pattern matching, and custom code testing
  • Experiment with models and parameters to optimize prompts
  • Data-driven insights from prompt performance and user interactions
  • AI Firewall preventing prompt injections and DoS attacks
  • Support for multiple LLM providers
  • TypeScript SDK and OpenAPI support
  • Self-hosting option for maximum security
  • Chronological agent run timeline
  • Model, tool, human-approval and error events
  • Redaction findings stored as hashes only
  • Hash-anchored, append-only evidence chain
  • Portable JSON audit packet export
  • Verified human approval with signed binding
  • Offline verification with signed receipts
  • Event queueing and retry logic
What makes it different
  • Prevents unpredictable LLM outputs through proper prompt management and testing
  • Non-technical teams can manage prompts with intuitive spreadsheet interface
  • Built-in AI Firewall for security and safety of AI outputs
  • Works seamlessly with all major LLM providers
  • Sensitive data never stored in the clear, only hashes preserved
  • Portable JSON packets verifiable outside the system
  • Verified human approvals with signature binding
Community votes00
DR (Domain Rating by Ahrefs)29 no change since last check18 no change since last check
Trust Flow (Majestic)60
Citation Flow (Majestic)3412
Referring domains (Majestic)2753

3 details filled in for both companies.

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