people · May 20, 2026
PyImageSearch Tutorial on Self-Hosted Langfuse with vLLM Released May 18 2026
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PyImageSearch released first lesson in LLM observability series on May 18 2026. Tutorial covers self-hosted Langfuse stack with vLLM server PostgreSQL and worker for trace capture. It shows baseline vLLM app without observability versus instrumented version using @observe decorator for parent-child spans latency and token usage. Architecture details include ports 8000 for vLLM and 3000 for Langfuse UI.
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