Teams instrumenting LLM applications with OpenTelemetry style tracing.

Traceloop is the commercial hosted backend built by the maintainers of the open source OpenLLMetry SDK for LLM observability.

Cloud hosted destination for telemetry, reachable from any OpenLLMetry instrumented application.

OpenLLMetry has over 1,400 commits and is actively maintained, with Traceloop operating as its commercial arm.

Gives teams a ready-made place to send OpenTelemetry traces without standing up their own observability stack.

Requires the Apache 2.0 OpenLLMetry SDK for instrumentation, and can also export to Datadog, Honeycomb and other backends.

SDK is open source and vendor neutral, but Traceloop itself is a commercial cloud product that stores exported trace data.