LangWatch vs Promptfoo
LangWatchAI Observability
From EUR 59 / moPublished price
PromptfooAI Evaluation and Testing
LangWatch AI Observability Observability and evaluations for AI apps. | Promptfoo AI Evaluation and Testing Ship agents, not vulnerabilities | |
|---|---|---|
| Overview | ||
| Category | AI Observability | AI Evaluation and Testing |
| What it is | LangWatch helps teams monitor prompts, traces, and quality signals across production LLM applications and agent workflows. | Open-source tool for testing and evaluating LLM prompts, models, and RAG pipelines with side-by-side comparisons. |
| Pricing | ||
| Published price | From EUR 59 / mo LangWatch offers free evaluation access and paid observability plans starting at EUR 59 per month. | Promptfoo offers a free or open-source edition, but no citable paid numeric starting price was found on the current official site; commercial or enterprise terms require a quote. |
| Pricing model | Tiered plans | Not available |
| Free options | Free plan · Free trial | Free plan · Free trial |
| Deal on Cubbie | None right now | None right now |
| Company | ||
| Founded | 2023 | 2023 |
| Team size | 1-10 employees | 11-50 employees |
| Headquarters | Amsterdam, Netherlands | San Francisco, CA |