What is the main difference between LangWatch and OpenLLMetry?

LangWatch and OpenLLMetry are both llm observability & evaluation but differ in their approach, features, and target audience. Compare their GitHub stats, technology stack, and community adoption to make the best choice.

Which is better: LangWatch or OpenLLMetry?

The choice between LangWatch and OpenLLMetry depends on your specific needs, technical requirements, and team preferences. Both are quality open source solutions with active communities.

Can I migrate from LangWatch to OpenLLMetry?

Migration between LangWatch and OpenLLMetry is possible but requires careful planning. Consider data export/import capabilities, feature parity, and potential workflow changes.

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LangWatch vs OpenLLMetry

Learn how LangWatch and OpenLLMetry differ in their key features, development activity, technology stack and community adoption, so you can decide which of these llm observability & evaluation is best for you.

LangWatch

Tests AI agents through multi-turn simulations, LLM-based scoring, and production tracing so teams can ship reliable agents with confidence.

Visit LangWatch Read more

4,991stars+119(+2.4%)

Last 30 days

Last commit
2 hours ago
Repository age
3 years
Version
3.21.0
License
Apache-2.0
Repository
langwatch/langwatch

OpenLLMetry

Open-source observability platform for LLMs using OpenTelemetry. Monitor performance, track costs, and debug AI applications with just 2 lines of code.

Visit OpenLLMetry Read more

7,504stars+57(+0.8%)

Last 30 days

Last commit
5 days ago
Repository age
3 years
Version
0.62.4
License
Apache-2.0
Repository
openllmetry

Detailed Comparison

Both LangWatch and OpenLLMetry have their unique strengths and serve similar purposes effectively. Consider your specific needs regarding popularity, growth, activity, technology, maturity, licensing and features when making your decision.

OpenLLMetry wins

Community & Popularity

OpenLLMetry leads in popularity with 7,504 stars vs 4,991 stars for LangWatch. The 50% higher star count indicates stronger community adoption. In terms of developer contributions, OpenLLMetry has 1,168 forks, indicating strong developer engagement.

LangWatch wins

Growth Momentum

LangWatch is growing faster, adding 119 stars in the last 30 days (+2.4%) against adding 57 stars for OpenLLMetry (+0.8%). LangWatch is the smaller project of the two, so it is closing the gap rather than extending a lead.

Comparable

Development Activity

Both projects show recent activity, with LangWatch last updated 2 hours ago and OpenLLMetry 5 days ago.

Comparable

Technology Stack

Both tools share common technology foundations, being built with Bash, Python. However, they differ in their additional technology choices: LangWatch uses JavaScript, CSS, Typescript, JSX, Golang, SCSS, Ruby.

Comparable