Langfuse vs Lunatrace: Which Should You Choose in 2026?
Choosing between Langfuse and Lunatrace comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
By Toolradar Team · Last updated February 28, 2026 · Methodology
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Langfuse
Open Source LLM Engineering Platform for debugging and improving your LLM application.
Best for you if:
- • You want the higher-rated option (7.4/10 vs 0.0/10)
- • Provides observability, traces, and metrics for LLM applications.
- • Offers prompt management, evaluation, and annotation features.
Lunatrace
Lunatrace
Best for you if:
- • You need lunatrace
- • You want to start free and upgrade later
| At a Glance |  Langfuse |  Lunatrace |
|---|---|---|
Price | Free + Paid | Free + Paid |
Best For | Debugging | Debugging |
Rating | 74/100 | —/100 |
| Feature | Langfuse | Lunatrace |
|---|---|---|
| Pricing Model | Freemium | Freemium |
| Editorial Score | 74 | — |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 0 |
| Categories | DebuggingAI Prompt Tools | DebuggingAutomation |
How Langfuse and Lunatrace Compare
Langfuse
Open Source LLM Engineering Platform for debugging and improving your LLM application.
Free tier available · 74/100 score
Lunatrace
Lunatrace
Free tier available
Who Should Use What?
On a budget?
Both are freemium. Compare plans on their websites.
Go with: Langfuse
Want the highest-rated option?
Langfuse scores 74/100. Lunatrace is unrated.
Go with: Langfuse
Value user reviews?
Neither has user reviews yet.
Go with: Langfuse
3 Questions to Help You Decide
What's your budget?
Both are freemium. Pricing won't help you decide here.
What's your use case?
Both are debugging tools. Compare their specific features to decide.
How important are ratings?
Not all tools have been rated yet.
Key Takeaways
Langfuse
- Higher score: 74/100 vs unrated
- Free tier available
- Our pick for this comparison
Lunatrace
The Bottom Line
Langfuse (74/100) is our pick.
Frequently Asked Questions
Is Langfuse or Lunatrace better?
Langfuse scores 74/100 in our evaluation. Both are freemium.
What are Langfuse and Lunatrace used for?
Langfuse: Open Source LLM Engineering Platform for debugging and improving your LLM application.. Lunatrace: Lunatrace.
What does Langfuse cost vs Lunatrace?
Langfuse is freemium (free tier + paid plans). Lunatrace is freemium (free tier + paid plans). Visit their websites for detailed pricing.