Arize AI alternatives

The best alternatives to Arize AI are Braintrust, Langfuse, Fiddler AI and LangSmith. Each is an AI tool with a distinct edge — pricing, output quality, or workflow — detailed below and reviewed on Stork.

• Braintrust

  Braintrust offers an evaluation-first approach to LLM development with CI/CD-native evaluations, automatic tracing, and collaborative experiments.

• Langfuse

  Langfuse is an open-source LLM observability platform providing trace logging, prompt management, and basic analytics with self-hosting options.

• Fiddler AI

  Fiddler AI provides an enterprise-grade ML and LLM monitoring platform with a strong focus on explainability, fairness, and compliance.

• LangSmith

  LangSmith is a unified agent engineering platform, developed by the LangChain team, that delivers comprehensive observability, evaluations, and prompt engineering for any LLM application or AI agent.