Vendor 1
ArthurAI Observability
AI observability and evaluation platform for LLM and traditional ML models.
No reviewsRating2018Founded
Arthur vs Langfuse
Vendor decision canvas
Vendor 2
LangfuseAI Observability
Langfuse is an open-source platform for tracing, prompt management, evaluations, and observability across LLM applications and agent systems.
$29+ / monthPriceNo reviewsRating2022Founded
Carry this decision forward
Arthur + Langfuse can move into a shared evaluation.
Evidence sheet
2-vendor view| Vendor 1 Arthur AI Observability Ship Reliable AI Agents Fast | Vendor 2 Langfuse AI Observability Open-source LLM engineering platform. | |
|---|---|---|
| Overview | ||
| Category | AI Observability | AI Observability |
| What it is | AI observability and evaluation platform for LLM and traditional ML models. | Langfuse is an open-source platform for tracing, prompt management, evaluations, and observability across LLM applications and agent systems. |
| Pricing | ||
| Price | Not available | $29+ / month |
| Pricing model | Tiered plans | Tiered plans |
| Free options | Free plan, Free trial | Free plan, Free trial |
| Company | ||
| Founded | 2018 | 2022 |
| Team size | 51-200 employees | Not available |
| Headquarters | Washington, DC | Berlin, Germany |
Where these sit in AI Observability
- Langfuse$29 / month
- AI Observability median$79.5 / month
Typical monthly range: $39.25–$186.75 per seat. 32% are priced on request.
See the whole AI Observability market