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Jern Cloud vs Pydantic Logfire

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

Jern Cloud compared with Pydantic Logfire
DetailJern Cloud logo Jern CloudPydantic Logfire logo Pydantic Logfire
What it doesCloud coding agent for GitHub that runs your tests before and after, and opens pull requests with receipts Production-grade AI and general observability built on OpenTelemetry
StageNot given Established
FoundedNot given 2018
Based inNot given Not given
Pricing modelFreemium Freemium
PricingFree trial: 30 days with $5 of inference included, no card required. Paid: $19 per workspace per month (billed after trial ends). Personal: Free with 10 million records/month hard-capped at $0. Team: $49/month with 10 million records included, $2 per million additional. Growth: $249/month with everything in Team plus unlimited seats and up to 90-day retention. Enterprise: Custom pricing for Cloud, Dedicated, or Self-hosted opt
Key features
  • Runs tests before and after changes
  • Detailed receipts showing what changed and cost
  • Scheduled campaigns with budget caps and safety limits
  • No setup required, no API keys to start
  • Supports Python, Node, .NET, and Java
  • Network proxy blocks private addresses
  • Policy enforcement with configurable access
  • Real-time cost tracking and model usage analytics
  • SQL query interface for traces and logs
  • Integrated evals framework for AI output evaluation
  • AI Gateway for centralized LLM API management
  • Feature flags and managed variables without redeploy
What makes it different
  • Transparent receipts with provider request IDs instead of vendor black boxes
  • Open source runtime that runs the same agent locally
  • Use your own provider key with metered usage
  • Never merges—you control all pull request acceptance
  • Works with any language via standard OpenTelemetry, not proprietary SDKs
  • Traces full application stack, not just LLM layer
  • Integrated evaluation framework with production datasets and live evals
  • Querying production telemetry with standard PostgreSQL SQL
  • Built by the team behind Pydantic with 60K+ GitHub stars
Community votes00
DR (Domain Rating by Ahrefs)6 +1 (up) since last check83 no change since last check
Trust Flow (Majestic)830
Citation Flow (Majestic)1454
Referring domains (Majestic)167880

5 details filled in for both companies.

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