
The Bottom Line
Entry price
Free plan available, paid tiers above
Biggest pro
Leverages open standards (OpenTelemetry)
Biggest con
Requires an OpenTelemetry backend for full visualization
TL;DR - OpenLLMetry
- Open-source observability for LLMs.
- Uses OpenTelemetry for standardized data.
- Requires only a few lines of code to integrate.
What is OpenLLMetry?
Available on: Web
Pros & Cons
Pros
- Leverages open standards (OpenTelemetry)
- Easy integration with minimal code changes
- Supports both Python and TypeScript/Node.js
- Provides visibility into LLM application workflows
- Vendor-neutral for data export
Cons
- Requires an OpenTelemetry backend for full visualization
- Limited information on advanced features or customization options from the provided content
Key Features
Pricing Plans
Free TrialPricing checked Jul 13, 2026
Free Forever
$0 / mo
Everything in all plans, plus:
- Up to 50K spans / month
- Up to 5 Seats
- 24 Hours Data Retention
Enterprise
Contact us
Everything in all plans, plus:
- >50K spans / month
- Unlimited Seats
- Custom Data Retention
- SOC 2 Compliance
- On-prem deployment option
- Dedicated slack support
Included in all plans
- Monitoring Dashboard
- Evaluation Dashboard
- CI/CD integration
- Prompt Management
Reviews

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OpenLLMetry FAQ
How does OpenLLMetry help developers understand their LLM applications?
Which teams benefit most from using OpenLLMetry?
How is OpenLLMetry priced?
What kind of data can OpenLLMetry export?
How does OpenLLMetry compare to LangSmith?
What are the main limitations of OpenLLMetry?
Can OpenLLMetry be used with different programming languages?
Source: traceloop.com