Langfuse vs Vellum

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

Vellum ranks higher on Top 11 (#1 vs #4) for AI engineers managing and versioning production prompts. The most complete and production-ready platform for the entire prompt lifecycle.

At a glance

LangfuseVellum
Top 11 rank#4 / Vellum vs Humanloop vs PromptLayer: 11 Best Prompt Engineering & Prompt Management Tools 2026#1 / Vellum vs Humanloop vs PromptLayer: 11 Best Prompt Engineering & Prompt Management Tools 2026
Score (out of 9.4)8.79.3
Best forOpen-source observability and tracingEnd-to-end production workflows
Pricing$$ ($0 to $1,500+/mo)$$$ ($500 to $5,000+/mo)
HQBerlin, GermanySan Francisco, USA
Founded20232023

Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.