Compare DevTools
Arize Phoenix vs LangSmith
Arize Phoenix vs LangSmith: compare pricing, use cases, AI models, integrations, privacy, governance and best fit by context.
Arize Phoenix vs LangSmith : buying comparison
This comparison helps choose between Arize Phoenix and LangSmith by pricing, use case, models, integration, privacy and governance.
Budget: Arize Phoenix · $0+. Rating: LangSmith · 4.5/5.
| Criteria | Arize Phoenix | LangSmith |
|---|---|---|
| Price | $0+ | $0+ usage |
| Best for | Open-source AI observability, tracing, evaluation and prompt iteration | Tracing, debugging, evaluating and monitoring LangChain and agent applications |
| Models | Traces, evaluations, experiments, prompt iteration, OpenInference telemetry and OpenTelemetry workflows | Traces, datasets, experiments, evaluators, prompt iteration, cost tracking and production monitoring |
| Privacy | Open-source Phoenix can run locally or self-host; Arize cloud adds managed team controls | Hosted platform with enterprise and self-host/hybrid options for larger organizations |
| Rating | 4.4/5 | 4.5/5 |
Frequently asked questions
Arize Phoenix or LangSmith: which one should you choose?
Choose Arize Phoenix if entry budget is the priority. Choose LangSmith if perceived maturity and overall rating matter more. The final test should still be based on your repository.
Do Arize Phoenix and LangSmith cover the same need?
Yes, they are close in category; compare limits, privacy, integration and suggestion quality.
How can teams run a fair test?
Use the same ticket, same repository and same data constraints, then measure saved time, errors, diff quality and monthly cost.