Langfuse vs Baserun
Side-by-side from the Top 11 ranking of Vellum vs Humanloop vs PromptLayer: 11 Best Prompt Engineering & Prompt Management Tools 2026. Last verified May 31, 2026.
The short answer
Langfuse ranks higher on Top 11 (#4 vs #5) for AI engineers managing and versioning production prompts. Best for open-source tracing and observability of complex LLM chains.
At a glance
| Langfuse | Baserun | |
|---|---|---|
| Top 11 rank | #4 / Vellum vs Humanloop vs PromptLayer: 11 Best Prompt Engineering & Prompt Management Tools 2026 | #5 / Vellum vs Humanloop vs PromptLayer: 11 Best Prompt Engineering & Prompt Management Tools 2026 |
| Score (out of 9.4) | 8.7 | 8.4 |
| Best for | Open-source observability and tracing | CI/CD-integrated LLM testing |
| Pricing | $$ ($0 to $1,500+/mo) | $$$ (Custom Pricing) |
| HQ | Berlin, Germany | San Francisco, USA |
| Founded | 2023 | 2023 |
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.