Langfuse
Open Source LLM Engineering Platform
Lyzr
Private Agent SDKs to build Generative AI Applications
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.
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 telemetryBoth tools — Pros
—Only in Lyzr — Pros
No unique pros listedOnly 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.
What Users Say
Langfuse
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 ...
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...
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
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...
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...
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.
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