AI Gateway Directory

Weights & Biases Weave

Tracing and evaluation for AI applications

Weave is a toolkit from Weights & Biases for logging, tracing and evaluating LLM applications. It records inputs and outputs of Python or TypeScript functions and compares runs side by side.

weavewandbtracingevals

More in Observability

Arize Phoenix

Observability

AI observability and evaluation you can self-host

Freephoenixarize

Braintrust

Observability

Evals, logging and prompt tooling for AI products

Freemiumbraintrustevals

Datadog LLM Observability

Observability

LLM traces inside Datadog

Paiddatadogapm

Helicone

Observability

Open-source LLM observability through a proxy or SDK

Freemiumheliconelogging

Langfuse

Observability

Open-source LLM observability, evals and prompt management

Freemiumlangfusetracing

LangSmith

Observability

Tracing, evals and deployment from the LangChain team

Freemiumlangsmithlangchain