Openllmetry
Observability for your LLM application based on OpenTelemetry
Pricing
Free tier
Flat rate
Adoption
↗RisingLicense
Open Source
Data freshness
Verified · Jul 16, 2026Overview
What is Openllmetry?
Openllmetry is an open-source observability tool designed specifically for Large Language Model applications, leveraging the robustness of OpenTelemetry to provide comprehensive monitoring and tracing capabilities.
Key differentiator
“Openllmetry stands out as an open-source observability tool specifically tailored for LLM applications, offering deep integration with OpenTelemetry and specialized features for monitoring AI pipelines.”
Capability profile
Capability Radar
Honest assessment
Strengths & Weaknesses
↑ Strengths
↓ Weaknesses
API requires Python-specific patterns, TypeScript SDK is community-maintained
v0.1 to v0.2 migration required rewriting chain definitions
Official support is primarily for Python, with limited official SDKs for other languages
Highly detailed tracing can introduce latency in production environments
Fit analysis
Who is it for?
✓ Best for
Teams building LLM applications who need detailed observability and tracing capabilities
Projects requiring integration with existing OpenTelemetry setups for unified monitoring
✕ Not a fit for
Developers looking for a managed service solution without self-hosting requirements
Applications that do not require or benefit from the specific optimizations provided by Openllmetry
Cost structure
Pricing
Free Tier
Available
Open source — free to use
Starts at
$0
Model
Flat rate
Enterprise
None
Performance benchmarks
How Fast Is It?
Ecosystem
Relationships
Works well with
Next step
Get Started with Openllmetry
Step-by-step setup guide with code examples and common gotchas.