What is the main difference between Langfuse and OpenLIT ?

Langfuse and OpenLIT 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: Langfuse or OpenLIT ?

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

Can I migrate from Langfuse to OpenLIT ?

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

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Langfuse vs OpenLIT

Learn how Langfuse and OpenLIT 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.

Langfuse

Langfuse provides tracing, evaluations, prompt management, and analytics to debug and improve LLM applications.

Visit Langfuse Read more

33,426stars+1,842(+5.8%)

Last 30 days

Last commit
12 hours ago
Repository age
3 years
Version
v4.15.0
License
MIT
Self-hosted
Yes
Repository
langfuse/langfuse

OpenLIT

Open-source observability platform for GenAI and LLM applications. Real-time monitoring, distributed tracing, prompt management, and AI model evaluation built on OpenTelemetry.

Visit OpenLIT Read more

2,703stars+75(+2.9%)

Last 30 days

Last commit
9 hours ago
Repository age
3 years
Version
1.15.0
License
Apache-2.0
Repository
openlit/openlit

Sponsor OpenLIT onopencollective.com

Detailed Comparison

Langfuse appears to have several advantages over OpenLIT , particularly in popularity, growth, licensing and features. Consider your specific needs regarding popularity, growth, activity, technology, maturity, licensing and features when making your decision.

Langfuse wins

Community & Popularity

Langfuse significantly outpaces **OpenLIT ** in community adoption with 33,426 stars compared to 2,703 stars on GitHub. This 12.4x difference suggests Langfuse has a much larger and more active community. In terms of developer contributions, Langfuse has 3,597 forks, indicating strong developer engagement.

Langfuse wins

Growth Momentum

Langfuse is growing faster, adding 1,842 stars in the last 30 days (+5.8%) against adding 75 stars for OpenLIT ** (+2.9%**). Langfuse is both larger and pulling further ahead.

Comparable

Development Activity

Both projects show recent activity, with Langfuse last updated 12 hours ago and **OpenLIT ** 9 hours ago.

Comparable

Technology Stack

Both tools share common technology foundations, being built with JavaScript, CSS, Bash, Typescript, JSX, Next.js. However, they differ in their additional technology choices: **OpenLIT ** leverages Python, Golang, C, Objective-C.

Comparable

Project Maturity

Both projects started around the same time, with Langfuse beginning 3 years ago and **OpenLIT ** 3 years ago.

Langfuse wins

Licensing

Langfuse uses the MIT license, which is more permissive than **OpenLIT **'s Apache-2.0 license, potentially offering greater flexibility for commercial use and integration.

Comparable

Use Cases & Features

Both tools serve similar use cases in LLM Observability & Evaluation.

Langfuse wins

Hosting & Deployment

Langfuse provides self-hosting options for complete data control and customization, while **OpenLIT ** may be primarily cloud-based or require different deployment approaches.