Have you seen two “prototypes” of standard for LLM telemetry? One is openllmetry, maintained by the folks at TraceLoop. Seems the more popular. The other one is openinference IIRC, by Arize AI.
Of the two, the only one I've ever personally explored is OpenLLMetry. Extremely cool project. In general, this is one of those areas where the field still needs to "shake out" a bit.
There is a GenAI standard spec from OpenTelemetry for tracing LLM based applications. Currently there are 3 library implementations of this spec - Langtrace, OpenLLMetry and OpenLit. Microsoft has an implementation for .NET aswell. OpenInference, though opentelemetry compatible does not adhere to the standard spec.
