Pydantic Logfire
OpenTelemetry observability from the Pydantic team
Logfire is an observability platform from the Pydantic team. It traces Python apps and LLM calls with OpenTelemetry and lets you query the data with SQL.
More in Observability
Arize Phoenix
Observability
AI observability and evaluation you can self-host
Braintrust
Observability
Evals, logging and prompt tooling for AI products
Datadog LLM Observability
Observability
LLM traces inside Datadog
Helicone
Observability
Open-source LLM observability through a proxy or SDK
Langfuse
Observability
Open-source LLM observability, evals and prompt management
LangSmith
Observability
Tracing, evals and deployment from the LangChain team