If you use an OSS Gateway already, some (e.g. LiteLLM) can natively forward logs to Langfuse: https://docs.litellm.ai/docs/proxy/logging#langfuse

We are looking into adding an Otel Collector as OTel-semantics are maturing around LLMs. For now many features that are key to LLMOPs are difficult to make work with OTel instrumentation as the space is moving quickly. Main thread on this is here: https://github.com/orgs/langfuse/discussions/2509