Langfuse

Open Source LLM Engineering Platform

★★★★★ 5.0/5
FactScore™ 81.2
VS

Lyzr

Private Agent SDKs to build Generative AI Applications

★★★★★ 5.0/5
FactScore™ 55.7

Updated February 2026

Langfuse Lyzr
Rating 5.0★ 5.0★
Reviews 41 12
Pros 18 0
FactScore™ 81.2 55.7

FactScore™ Comparison

FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.

👑
81.2
Langfuse FactScore™
★ Langfuse wins on FactScore™
55.7
Lyzr FactScore™

Pros & Cons

Only in Langfuse — Pros

LLM observability Open source Detailed tracing Monitoring capabilities Cost-effective Easy to integrate Free tier SDK availability Seamless integration Debugging tools Fast iterations Insightful analytics Community engagement Detailed analytics Excellent UI Flexible architecture Open API Robust telemetry

Both tools — Pros

Only in Lyzr — Pros

No unique pros listed

Only in Langfuse — Cons

Both tools — Cons

Only in Lyzr — Cons

Details

Langfuse Lyzr
Categories AI Infrastructure Tools, AI Metrics and Evaluation AI Infrastructure Tools
Platforms Web Web
Became Popular August 20, 2023 July 24, 2023
Website langfuse.com www.lyzr.ai

Who Should Pick Which?

Choose Langfuse if...

  • LLM observability
  • Open source
  • Detailed tracing

Choose Lyzr if...

  • No unique pros listed

With a FactScore™ of 81.2 vs 55.7, Langfuse leads in community reception. Langfuse uniquely offers LLM observability and Open source, while Lyzr stands out for No unique pros listed.

3

What Users Say

Langfuse

D
Dan Jul 19, 2025
★★★★★

Without Langfuse, we would have been flying blind with our drafting agent. This platform is critical not just for measuring performance, but for understanding exactly what context gets pulled into ...

D
David Aug 20, 2023
★★★★★

So excited to see Langfuse go live — we've been a happy user for 4 weeks now. Most detailed latency and analytics in the market. Highly recommend for anyone using complex chains or with user-f...

J
Jonas Aug 20, 2023
★★★★★

We’ve been unsung Langfuse for 2 months now. It’s easy to integrate and makes it simpler for us to monitor & debug LLM requests during development and beyond.

Lyzr

A
Anna Jul 24, 2023
★★★★★

Hi team. Good idea. 1) Why are you better than Micr BL? 2) Why is your monetisation scheme based on users? Is this good model? I think, that companies usually have 1 analytic, who really engaged in...

O
Olivia May 7, 2024
★★★★★

Lyzr has been a game-changer for non-developers like me who are eager to dive into the world of building Gen AI apps. As someone without a background in coding, I've found Lyzr incredibly intuitive...

K
K Jul 24, 2023
★★★★★

Lyzr.ai can help you gain impactful business insights very quickly compared to the traditional approaches. It also recommends you the analyses you can run on your data, which is a very helpful feat...

Frequently Asked Questions

Which is better, Langfuse or Lyzr?

Based on FactScore™, Langfuse leads with a score of 81.2 vs 55.7. Langfuse has a higher rating of 5.0★ compared to 5.0★.

What are the pros of Langfuse compared to Lyzr?

Langfuse uniquely offers: LLM observability, Open source, Detailed tracing, Monitoring capabilities, Cost-effective.

What are the pros of Lyzr compared to Langfuse?

Lyzr uniquely offers: No unique pros listed.

Is Langfuse better rated than Lyzr?

Langfuse is rated 5.0★ from 41 reviews. Lyzr is rated 5.0★ from 12 reviews.

What is the FactScore™ of Langfuse and Lyzr?

FactScore™ weighs rating and review volume together. Langfuse scores 81.2 and Lyzr scores 55.7.

Don't Get Fooled by Fake Social Media Videos

The world's first fact checker for social media. Paste any link and get an instant credibility score with sources.

Try FactCheckTool Free