2 Openllmetry Alternatives, Compared
Open-source observability for your LLM application, based on OpenTelemetry  sits in Agent Tracing. Below is every comparable tool we hold data on — 2 of them have a free tier.
Still want the original? Read our Openllmetry write-up.
| Tool | What it does | Pricing | Free tier |
|---|---|---|---|
| Open-source AI observability for LLM apps | Free tier | ||
| An open-source LLM engineering platform for tracing, evaluation, prompt management, and metrics. [#opensource](https://github.com/langfuse/langfuse) | Free tier |
Arize Phoenix — Open-source AI observability for LLM apps
Found in: Yigtwxx/Awesome-RAG-Production
Langfuse — An open-source LLM engineering platform for tracing, evaluation, prompt management, and metrics. [#opensource](https://github.com/langfuse/langfuse)
An open-source LLM engineering platform for tracing, evaluation, prompt management, and metrics. [#opensource](https://github.com/langfuse/langfuse) Found in: steven2358/awesome-generative-ai
Common questions
What is the best Openllmetry alternative?
Arize Phoenix is the closest alternative to Openllmetry in the Agent Tracing category. Open-source AI observability for LLM apps Which one fits depends on whether you need a free tier — 2 of these 2 options have one.
Is there a free alternative to Openllmetry?
Yes — Arize Phoenix, Langfuse all offer a free tier.
How were these Openllmetry alternatives chosen?
They are tools listed in the same category as Openllmetry on Neura Market, ranked by how closely they match on capability. We list every option we hold data for rather than a paid-placement shortlist.