Observability & Monitoring

Openllmetry

Observability for your LLM application based on OpenTelemetry

Status
Generally available
Last checked
Checked · Oct 16, 2026
License
Open source
Pricing
Free tier · from $0
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What it is

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.

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.

When it fits — and when it doesn’t

A good fit for

  • Teams building LLM applications who need detailed observability and tracing capabilities

  • Projects requiring integration with existing OpenTelemetry setups for unified monitoring

Look elsewhere if

  • 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

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Limited integrations outside of Python ecosystem

    Official support is primarily for Python, with limited official SDKs for other languages

  2. 02

    Performance overhead due to comprehensive tracing

    Highly detailed tracing can introduce latency in production environments

What it does well

  • Integration with OpenTelemetry for seamless observability

  • Specific optimizations for LLM applications

  • Comprehensive monitoring and tracing capabilities

Pricing

Free tier
YesOpen source — free to use
Paid from
$0
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

How Fast Is It?

Set up Openllmetry

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →
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