LLM observability / OpenTelemetry instrumentation
Python library that adds OpenTelemetry-based observability (traces/metrics) to LLM/GenAI applications, emitting standard OTLP to any backend.
Solves the same problem with a different architecture or at a different layer. Expect to rewrite the integration.
Use instead if you want a self-contained AI observability platform (UI + monitoring) rather than only emitting OTel to your own backend.
Open source platform for AI Engineering: OpenTelemetry-native LLM Observability, GPU Monitoring, Guardrails, Evaluations, Prompt Management, Vault, Playground. 🚀💻 Integrates with 50+ LLM Providers, VectorDBs, Agent Frameworks and GPUs.
Use Logfire when you want an AI observability service with a dashboard instead of plugging OTel into an existing backend.
AI observability platform for production LLM and agent systems.
Use if you also need an LLM gateway/eval platform bundled with tracing, though archived.
TensorZero is an open-source LLMOps platform that unifies an LLM gateway, observability, evaluation, optimization, and experimentation.
Use Langfuse when you want a ready-made LLM observability/eval UI and prompt management instead of a low-level OTel library.
🪢 Open source AI engineering platform: LLM evals, observability, metrics, prompt management, playground, datasets. Integrates with OpenTelemetry, LangChain, OpenAI SDK, LiteLLM, and more. 🍊YC W23
Use Laminar if you want a dedicated AI-agent observability platform with traces/UI rather than a generic OTel exporter.
Laminar - open-source observability platform purpose-built for AI agents. YC S24.
These projects were analysed and named openllmetry among their alternatives. The relationship is not symmetric — how openllmetry rates them is a separate judgement, made when openllmetry is analysed in its own right.
calls openllmetry “Choose if you only need lightweight OpenTelemetry-based LLM/GenAI tracing without OpenObserve's full signal suite.”
Open source observability platform for logs, metrics, traces, frontend monitoring, pipelines and LLM observability. A sophisticated, simple and highly performant alternative to Datadog, Splunk, and Elasticsearch with 140x lower storage costs and single binary deployment.