Arthur vs PromptLayer
ArthurAI Observability
PromptLayerPrompt Engineering Tools
From $50 / seat / moPublished price
Arthur AI Observability Ship Reliable AI Agents Fast | PromptLayer Prompt Engineering Tools Prompt engineering, evals, and observability for production AI. | |
|---|---|---|
| Overview | ||
| Category | AI Observability | Prompt Engineering Tools |
| What it is | AI observability and evaluation platform for LLM and traditional ML models. | PromptLayer is a platform for prompt management, AI observability, evaluation workflows, and release control across LLM apps and agent systems. |
| Pricing | ||
| Published price | No current public numeric pricing was verified for Arthur. Pricing is provided through sales or depends on usage, scope, or deployment requirements. | From $50 / seat / mo Free tier ($0) with up to ~5,000 requests and 7-day log retention. Pro is $50/user/mo with unlimited log retention and advanced features. Enterprise is custom-quoted, adding SSO/R… |
| Pricing model | Tiered plans | Tiered plans |
| Free options | Free plan · Free trial | Free plan · No free trial |
| Deal on Cubbie | None right now | None right now |
| Company | ||
| Founded | 2018 | 2021 |
| Team size | 51-200 employees | Not available |
| Headquarters | Washington, DC | New York City, NY |