Langfuse

Open Source LLM Engineering Platform

★★★★★ 5.0/5
FactScore™ 81.2
VS

Puddl

Get Complete Breakdown of OpenAI API Usage for Free

★★★★★ 5.0/5
FactScore™ 30.1

Updated February 2026

Langfuse Puddl
Rating 5.0★ 5.0★
Reviews 41 3
Pros 18 0
FactScore™ 81.2 30.1

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™
30.1
Puddl 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 Puddl — Pros

No unique pros listed

Only in Langfuse — Cons

Both tools — Cons

Only in Puddl — Cons

Details

Langfuse Puddl
Categories AI Infrastructure Tools, AI Metrics and Evaluation AI Infrastructure Tools, AI Metrics and Evaluation
Platforms Web Web
Became Popular August 20, 2023 May 20, 2023
Website langfuse.com puddl.io

Who Should Pick Which?

Choose Langfuse if...

  • LLM observability
  • Open source
  • Detailed tracing

Choose Puddl if...

  • No unique pros listed

With a FactScore™ of 81.2 vs 30.1, Langfuse leads in community reception. Langfuse uniquely offers LLM observability and Open source, while Puddl 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.

Puddl

G
Giancarlo May 20, 2023
★★★★★

Hey! Congrats on the launch! I love the traffic and cost analytics breakdown! it also gives a good insight about the tokens for requests used which is kind of an abstract consumption model by opena...

A
Anna May 20, 2023
★★★★★

Sankeerth, congratulations on the launch!🎊 Really interesting tool for analytics - are you the first one on the market who created this or similar solutions already also take place? And are you pl...

U
Udayraj May 20, 2023
★★★★★

🎈 Pop the champagne! Your Puddl launch on Product Hunt is a reason to celebrate. Kudos to your team for bringing something extraordinary to the table. Here's to the next chapter of your journey, f...

Frequently Asked Questions

Which is better, Langfuse or Puddl?

Based on FactScore™, Langfuse leads with a score of 81.2 vs 30.1. Langfuse has a higher rating of 5.0★ compared to 5.0★.

What are the pros of Langfuse compared to Puddl?

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

What are the pros of Puddl compared to Langfuse?

Puddl uniquely offers: No unique pros listed.

Is Langfuse better rated than Puddl?

Langfuse is rated 5.0★ from 41 reviews. Puddl is rated 5.0★ from 3 reviews.

What is the FactScore™ of Langfuse and Puddl?

FactScore™ weighs rating and review volume together. Langfuse scores 81.2 and Puddl scores 30.1.

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